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2 Commits
C++ClassWo
...
Class-25.1
| Author | SHA1 | Date | |
|---|---|---|---|
| 6d6eacab67 | |||
| 51b37f16be |
327
11.cpp
Normal file
327
11.cpp
Normal file
@@ -0,0 +1,327 @@
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//#pragma warning(disable:4996)
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//#include <iostream>
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//#include <stdio.h>
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//#define MAX_SIZE 50
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//#define MAX_L 4096
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//using namespace std;
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//struct StudentStruct {
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// //public
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// int id{ 0 };
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// void setId(int id) {
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// if(this->id ==0) this->id = id;
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// }
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//};
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//
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//class Student {
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//
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//public:
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// void setId(int id);
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//
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// void setName(char* name_);
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//
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// void setInform(const char* inf);
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//
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// int getId()const;
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//
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// const char* getName()const;
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//
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// //char* getInform()const {
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// // return (inform != nullptr) ? inform : new char[MAX_SIZE] {"NoInform"};
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// //}
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// const char* getInform()const;
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//
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//
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//
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//
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// void show()const;
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//
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// const char* studentToString()const;
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////protected:
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// // Student(){}
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// //
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// //Student(){
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// // id = 0;
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// // strcpy(name, "NoName");
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// // inform = nullptr;
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// //}
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//
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// Student();
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//
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// Student(int id, const char* name_);
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//
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// Student(int id, const char* name_, const char* inf);
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//
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// ~Student();
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//private:
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// int id;// { 0 };
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// char name[MAX_SIZE];// {"NoName"};
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// char* inform;// { nullptr };
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//};
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//
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//inline void Student::setId(int id) {
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// if (this->id == 0) this->id = id;
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//}
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//
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//inline void Student::setName(char* name_) {//(const char*)
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// if (name_ == nullptr) return;
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// strcpy_s(name, strlen(name_) + 1, name_);
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//}
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//
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//inline void Student::setInform(const char* inf) {
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// if (inf == nullptr) return;
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// if (inform != nullptr) delete[] inform;//?
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// inform = new char[strlen(inf) + 1];
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// strcpy_s(inform, strlen(inf) + 1, inf);
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//}
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//
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//inline int Student::getId()const {
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// return id;
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//}
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//
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//inline const char* Student::getName()const {
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// char* str = new char[MAX_L] { "" };
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// strcpy(str, name);
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// return str;
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//}
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//
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//inline const char* Student::getInform()const {
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// if (inform == nullptr) return "NoInform";
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// char* str = new char[MAX_L] { "" };
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// strcpy(str, inform);
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// return str;
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//}
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//
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//
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//
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//
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//inline void Student::show()const {
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// cout << "Id= " << id
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// << "\nName " << name
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// << "\nInform " << getInform()// ((inform != nullptr) ? inform : "NoInform")
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// << endl;
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//}
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//
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//inline const char* Student::studentToString()const {
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// char* str = new char[MAX_L] { "" };
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// //strcat_s(str, "Id= ");
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// sprintf(str, "Id = %d \nName %s \nInform %s ", id, name, getInform());
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// //%d %i - int
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// //%f %e %g -float double
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// //%s - string const char* char*
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// return str;
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//}
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//
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//
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//Student::Student() :id{ 0 }, name{ "NoName" }, inform{ nullptr }{
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// cout << "\n Create student: " << this << endl;
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//}
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//
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//Student::Student(int id, const char* name_) :id{ id }, inform{ nullptr }{
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// /* if (name_ == nullptr) return;
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// strcpy_s(name, strlen(name_) + 1, name_);*/
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// cout << "\n Create student: " << this << endl;
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// setName((char*)name_);
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//}
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//
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//Student::Student(int id, const char* name_, const char* inf) :id{ id } {
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// /* if (name_ == nullptr) return;
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// strcpy_s(name, strlen(name_) + 1, name_);
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// if (inf == nullptr) return;
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// inform = new char[strlen(inf) + 1];
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// strcpy_s(inform, strlen(inf) + 1, inf);*/
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// cout << "\n Create student: " << this << endl;
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// setName((char*)name_);
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// setInform(inf);
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//}
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//
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//Student::~Student() {
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// cout << "\n Delete student: " << this << endl;
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// if (inform != nullptr) delete[] inform;
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//}
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//
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//int main() {
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// //int a;
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// //a = 5;
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// //int b{ 5 };
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// //auto c = 5;
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// {
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// Student student;
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// cout << "\nStudent( create):\n"
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// << student.studentToString()
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// << endl;
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// Student student1{2, "Olya" };
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// student1.show();
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// Student* pStud = new Student(3, "Sasha");
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// pStud->show();
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// Student student3{ 12,"Ivan","Good student"};
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// cout << "\nStudent: " << student3.studentToString() << endl;
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// delete pStud;
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// }//~Student()
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//
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// cout << "End program" << endl;
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// //system("pause");
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// system("pause");
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//}
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#pragma warning(disable:4996)
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#include <iostream>
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#include <stdio.h>
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#define MAX_SIZE 50
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#define MAX_L 4096
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using namespace std;
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class Student {
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public:
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Student();
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Student(int id, const char* name, const char* birthDate, const char* phone,
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const char* city, const char* country, const char* university, const char* group);
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~Student();
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void setId(int id);
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int getId() const;
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void setName(const char* name);
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const char* getName() const;
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void setBirthDate(const char* birthDate);
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const char* getBirthDate() const;
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void setPhone(const char* phone);
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const char* getPhone() const;
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void setCity(const char* city);
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const char* getCity() const;
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void setCountry(const char* country);
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const char* getCountry() const;
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void setUniversity(const char* university);
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const char* getUniversity() const;
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void setGroup(const char* group);
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const char* getGroup() const;
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void input();
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const char* studentToString() const;
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private:
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int id;
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char name[MAX_SIZE];
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char birthDate[MAX_SIZE];
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char phone[MAX_SIZE];
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char city[MAX_SIZE];
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char country[MAX_SIZE];
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char university[MAX_SIZE];
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char group[MAX_SIZE];
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};
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Student::Student() : id(0), name("NoName"), birthDate("01/01/1970"), phone("0000000000"),
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city("NoCity"), country("NoCountry"), university("NoUniversity"), group("NoGroup") {
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cout << "\n Create student: " << this << endl;
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}
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Student::Student(int id, const char* name, const char* birthDate, const char* phone,
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const char* city, const char* country, const char* university, const char* group)
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: id(id) {
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setName(name);
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setBirthDate(birthDate);
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setPhone(phone);
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setCity(city);
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setCountry(country);
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setUniversity(university);
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setGroup(group);
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cout << "\n Create student: " << this << endl;
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}
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Student::~Student() {
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cout << "\n Delete student: " << this << endl;
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}
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void Student::setId(int id) {
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this->id = id;
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}
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int Student::getId() const {
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return id;
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}
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void Student::setName(const char* name) {
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strncpy(this->name, name, MAX_SIZE - 1);
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this->name[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getName() const {
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return name;
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}
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void Student::setBirthDate(const char* birthDate) {
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strncpy(this->birthDate, birthDate, MAX_SIZE - 1);
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this->birthDate[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getBirthDate() const {
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return birthDate;
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}
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void Student::setPhone(const char* phone) {
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strncpy(this->phone, phone, MAX_SIZE - 1);
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this->phone[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getPhone() const {
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return phone;
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}
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void Student::setCity(const char* city) {
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strncpy(this->city, city, MAX_SIZE - 1);
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this->city[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getCity() const {
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return city;
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}
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void Student::setCountry(const char* country) {
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strncpy(this->country, country, MAX_SIZE - 1);
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this->country[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getCountry() const {
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return country;
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}
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void Student::setUniversity(const char* university) {
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strncpy(this->university, university, MAX_SIZE - 1);
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this->university[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getUniversity() const {
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return university;
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}
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void Student::setGroup(const char* group) {
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strncpy(this->group, group, MAX_SIZE - 1);
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this->group[MAX_SIZE - 1] = '\0';
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}
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const char* Student::getGroup() const {
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return group;
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}
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const char* Student::studentToString() const {
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static char str[MAX_L];
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sprintf(str, "ID: %d\nName: %s\nBirth Date: %s\nPhone: %s\nCity: %s\nCountry: %s\nUniversity: %s\nGroup: %s\n",
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id, name, birthDate, phone, city, country, university, group);
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return str;
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}
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int main() {
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Student student;
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cout << student.studentToString() << endl;
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Student student1{ 1, "Alice", "02/03/2000", "1234567890", "New York", "USA", "Harvard", "CS101" };
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cout << student1.studentToString() << endl;
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Student* pStud = new Student(2, "Bob", "15/08/1999", "9876543210", "Los Angeles", "USA", "Stanford", "CS102");
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cout << pStud->studentToString() << endl;
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delete pStud;
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return 0;
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}
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317
2.cpp
Normal file
317
2.cpp
Normal file
@@ -0,0 +1,317 @@
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//#pragma warning(disable:4996)
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//#include <iostream>
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//#include <stdio.h>
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//#define MAX_SIZE 50
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//#define MAX_L 4096
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//using namespace std;
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//struct StudentStruct {
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// //public
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// int id{ 0 };
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// void setId(int id) {
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// if(this->id ==0) this->id = id;
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// }
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//};
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//
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//class Student {
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//
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//public:
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// void setId(int id);
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//
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// void setName(char* name_);
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//
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// void setInform(const char* inf);
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//
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// int getId()const;
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//
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// const char* getName()const;
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//
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// //char* getInform()const {
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// // return (inform != nullptr) ? inform : new char[MAX_SIZE] {"NoInform"};
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// //}
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// const char* getInform()const;
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//
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//
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//
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//
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// void show()const;
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//
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// const char* studentToString()const;
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////protected:
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// // Student(){}
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// //
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// //Student(){
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// // id = 0;
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// // strcpy(name, "NoName");
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// // inform = nullptr;
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// //}
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//
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// Student();
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//
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// Student(int id, const char* name_);
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//
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// Student(int id, const char* name_, const char* inf);
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//
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// ~Student();
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//private:
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// int id;// { 0 };
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// char name[MAX_SIZE];// {"NoName"};
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// char* inform;// { nullptr };
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//};
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//
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//inline void Student::setId(int id) {
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// if (this->id == 0) this->id = id;
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//}
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//
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//inline void Student::setName(char* name_) {//(const char*)
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// if (name_ == nullptr) return;
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// strcpy_s(name, strlen(name_) + 1, name_);
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//}
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//
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//inline void Student::setInform(const char* inf) {
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// if (inf == nullptr) return;
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// if (inform != nullptr) delete[] inform;//?
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// inform = new char[strlen(inf) + 1];
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// strcpy_s(inform, strlen(inf) + 1, inf);
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//}
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//
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//inline int Student::getId()const {
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// return id;
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//}
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//
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//inline const char* Student::getName()const {
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// char* str = new char[MAX_L] { "" };
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// strcpy(str, name);
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// return str;
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//}
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//
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//inline const char* Student::getInform()const {
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// if (inform == nullptr) return "NoInform";
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// char* str = new char[MAX_L] { "" };
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// strcpy(str, inform);
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// return str;
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//}
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//
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//
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//
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//
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//inline void Student::show()const {
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// cout << "Id= " << id
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// << "\nName " << name
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// << "\nInform " << getInform()// ((inform != nullptr) ? inform : "NoInform")
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// << endl;
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//}
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//
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//inline const char* Student::studentToString()const {
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// char* str = new char[MAX_L] { "" };
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// //strcat_s(str, "Id= ");
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// sprintf(str, "Id = %d \nName %s \nInform %s ", id, name, getInform());
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// //%d %i - int
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// //%f %e %g -float double
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||||
// //%s - string const char* char*
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// return str;
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//}
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//
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//
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//Student::Student() :id{ 0 }, name{ "NoName" }, inform{ nullptr }{
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// cout << "\n Create student: " << this << endl;
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//}
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//
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//Student::Student(int id, const char* name_) :id{ id }, inform{ nullptr }{
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// /* if (name_ == nullptr) return;
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// strcpy_s(name, strlen(name_) + 1, name_);*/
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// cout << "\n Create student: " << this << endl;
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// setName((char*)name_);
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//}
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//
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//Student::Student(int id, const char* name_, const char* inf) :id{ id } {
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// /* if (name_ == nullptr) return;
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// strcpy_s(name, strlen(name_) + 1, name_);
|
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// if (inf == nullptr) return;
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// inform = new char[strlen(inf) + 1];
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// strcpy_s(inform, strlen(inf) + 1, inf);*/
|
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// cout << "\n Create student: " << this << endl;
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// setName((char*)name_);
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// setInform(inf);
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//}
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//
|
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//Student::~Student() {
|
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// cout << "\n Delete student: " << this << endl;
|
||||
// if (inform != nullptr) delete[] inform;
|
||||
//}
|
||||
//
|
||||
//int main() {
|
||||
// //int a;
|
||||
// //a = 5;
|
||||
// //int b{ 5 };
|
||||
// //auto c = 5;
|
||||
// {
|
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// Student student;
|
||||
// cout << "\nStudent( create):\n"
|
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// << student.studentToString()
|
||||
// << endl;
|
||||
// Student student1{2, "Olya" };
|
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// student1.show();
|
||||
// Student* pStud = new Student(3, "Sasha");
|
||||
// pStud->show();
|
||||
// Student student3{ 12,"Ivan","Good student"};
|
||||
// cout << "\nStudent: " << student3.studentToString() << endl;
|
||||
// delete pStud;
|
||||
// }//~Student()
|
||||
//
|
||||
// cout << "End program" << endl;
|
||||
// //system("pause");
|
||||
// system("pause");
|
||||
//}
|
||||
|
||||
#pragma warning(disable:4996)
|
||||
#include <iostream>
|
||||
#include <stdio.h>
|
||||
#define MAX_SIZE 50
|
||||
#define MAX_L 4096
|
||||
#define PHONE 15
|
||||
#define BIRTDATE 20
|
||||
using namespace std;
|
||||
|
||||
class Student {
|
||||
public:
|
||||
Student(int id = 0, const char* name = "NoName", const char* birthDate = "NoDate", const char* phone = "0000000000",
|
||||
const char* city = "NoCity", const char* country = "NoCountry", const char* university = "NoUniversity", const char* group = "NoGroup");
|
||||
~Student();
|
||||
|
||||
void setId(int id);
|
||||
int getId() const;
|
||||
|
||||
void setName(const char* name);
|
||||
const char* getName() const;
|
||||
|
||||
void setBirthDate(const char* birthDate);
|
||||
const char* getBirthDate() const;
|
||||
|
||||
void setPhone(const char* phone);
|
||||
const char* getPhone() const;
|
||||
|
||||
void setCity(const char* city);
|
||||
const char* getCity() const;
|
||||
|
||||
void setCountry(const char* country);
|
||||
const char* getCountry() const;
|
||||
|
||||
void setUniversity(const char* university);
|
||||
const char* getUniversity() const;
|
||||
|
||||
void setGroup(const char* group);
|
||||
const char* getGroup() const;
|
||||
|
||||
const char* studentToString() const;
|
||||
|
||||
private:
|
||||
int id;
|
||||
char name[MAX_SIZE];
|
||||
char birthDate[BIRTDATE];
|
||||
char phone[PHONE];
|
||||
char city[MAX_SIZE];
|
||||
char country[MAX_SIZE];
|
||||
char university[MAX_SIZE];
|
||||
char group[MAX_SIZE];
|
||||
};
|
||||
|
||||
Student::Student(int id, const char* name, const char* birthDate, const char* phone,
|
||||
const char* city, const char* country, const char* university, const char* group) : id(id) {
|
||||
setName(name);
|
||||
setBirthDate(birthDate);
|
||||
setPhone(phone);
|
||||
setCity(city);
|
||||
setCountry(country);
|
||||
setUniversity(university);
|
||||
setGroup(group);
|
||||
cout << "\n Create student: " << this << endl;
|
||||
}
|
||||
|
||||
Student::~Student() {
|
||||
cout << "\n Delete student: " << this << endl;
|
||||
}
|
||||
|
||||
void Student::setId(int id) {
|
||||
this->id = id;
|
||||
}
|
||||
|
||||
int Student::getId() const {
|
||||
return id;
|
||||
}
|
||||
|
||||
void Student::setName(const char* name) {
|
||||
strncpy(this->name, name, MAX_SIZE - 1);
|
||||
this->name[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getName() const {
|
||||
return name;
|
||||
}
|
||||
|
||||
void Student::setBirthDate(const char* birthDate) {
|
||||
strncpy(this->birthDate, birthDate, MAX_SIZE - 1);
|
||||
this->birthDate[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getBirthDate() const {
|
||||
return birthDate;
|
||||
}
|
||||
|
||||
void Student::setPhone(const char* phone) {
|
||||
strncpy(this->phone, phone, MAX_SIZE - 1);
|
||||
this->phone[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getPhone() const {
|
||||
return phone;
|
||||
}
|
||||
|
||||
void Student::setCity(const char* city) {
|
||||
strncpy(this->city, city, MAX_SIZE - 1);
|
||||
this->city[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getCity() const {
|
||||
return city;
|
||||
}
|
||||
|
||||
void Student::setCountry(const char* country) {
|
||||
strcpy_s(this->country, country);
|
||||
//this->country[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getCountry() const {
|
||||
return country;
|
||||
}
|
||||
|
||||
void Student::setUniversity(const char* university) {
|
||||
strncpy(this->university, university, MAX_SIZE - 1);
|
||||
this->university[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getUniversity() const {
|
||||
return university;
|
||||
}
|
||||
|
||||
void Student::setGroup(const char* group) {
|
||||
strncpy(this->group, group, MAX_SIZE - 1);
|
||||
this->group[MAX_SIZE - 1] = '\0';
|
||||
}
|
||||
const char* Student::getGroup() const {
|
||||
return group;
|
||||
}
|
||||
|
||||
const char* Student::studentToString() const {
|
||||
static char str[MAX_L];
|
||||
sprintf(str, "ID: %d\nName: %s\nBirth Date: %s\nPhone: %s\nCity: %s\nCountry: %s\nUniversity: %s\nGroup: %s\n",
|
||||
id, name, birthDate, phone, city, country, university, group);
|
||||
return str;
|
||||
}
|
||||
|
||||
int main() {
|
||||
Student student{ 1, "Vova"};
|
||||
cout << student.studentToString() << endl;
|
||||
|
||||
Student student1{ 2, "Alice", "02/03/2000" };
|
||||
cout << student1.studentToString() << endl;
|
||||
|
||||
Student* pStud = new Student(3, "Bob", "15/08/1999", "9876543210", "Los Angeles", "USA", "Stanford", "CS102");
|
||||
cout << pStud->studentToString() << endl;
|
||||
delete pStud;
|
||||
|
||||
return 0;
|
||||
}
|
||||
@@ -1,67 +0,0 @@
|
||||
#include <iostream>
|
||||
|
||||
using namespace std;
|
||||
|
||||
void sortArr(int* a, int n) {
|
||||
for (int i = 1; i < n; i++) {
|
||||
int key = a[i];
|
||||
int j = i - 1;
|
||||
while (j >= 0 && a[j] > key) {
|
||||
a[j + 1] = a[j];
|
||||
j--;
|
||||
}
|
||||
a[j + 1] = key;
|
||||
}
|
||||
}
|
||||
void RemovableLmR(int* a, int& n) {
|
||||
if (n <= 2) {
|
||||
n = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
// Зсуваємо масив вліво, видаляємо перший
|
||||
for (int i = 0; i < n - 1; i++) {
|
||||
a[i] = a[i + 1];
|
||||
}
|
||||
|
||||
// Просто зменшуємо розмір ще на один, прибираємо останній
|
||||
n = n - 2;
|
||||
}
|
||||
|
||||
void printArr(int* a, int n) {
|
||||
if (n == 0) {
|
||||
cout << "(empty)\n";
|
||||
return;
|
||||
}
|
||||
for (int i = 0; i < n; i++) {
|
||||
cout << a[i] << " ";
|
||||
}
|
||||
cout << "\n";
|
||||
}
|
||||
|
||||
int main() {
|
||||
srand(time(0));
|
||||
int n;
|
||||
cout << "Enter N: ";
|
||||
cin >> n;
|
||||
|
||||
int* a = new int[n];
|
||||
|
||||
for (int i = 0; i < n; i++) {
|
||||
a[i] = rand() % 101 - 50;
|
||||
}
|
||||
|
||||
cout << "\nOriginal array:\n";
|
||||
printArr(a, n);
|
||||
|
||||
sortArr(a, n);
|
||||
cout << "\nSorted array:\n";
|
||||
printArr(a, n);
|
||||
|
||||
RemovableLmR(a, n);
|
||||
cout << "\nArray after removing first and last:\n";
|
||||
printArr(a, n);
|
||||
|
||||
delete[] a;
|
||||
return 0;
|
||||
}
|
||||
50
task1.cpp
50
task1.cpp
@@ -1,50 +0,0 @@
|
||||
#include <iostream>
|
||||
using namespace std;
|
||||
|
||||
void sortArr(int* p, int n) {
|
||||
for (int i = 0; i < n - 1; i++) {
|
||||
for (int j = 0; j < n - i - 1; j++) {
|
||||
if (p[j] > p[j + 1]) {
|
||||
int t = p[j];
|
||||
p[j] = p[j + 1];
|
||||
p[j + 1] = t;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void printArr(int* p, int n) {
|
||||
for (int i = 0; i < n; i++) {
|
||||
cout << p[i] << " ";
|
||||
}
|
||||
cout << "\n";
|
||||
}
|
||||
|
||||
int main() {
|
||||
srand(time(0));
|
||||
int n;
|
||||
|
||||
cout << "Enter N: ";
|
||||
cin >> n;
|
||||
|
||||
int* a = new int[n];
|
||||
|
||||
for (int i = 0; i < n; i++) {
|
||||
a[i] = rand() % 101 - 50;
|
||||
}
|
||||
|
||||
cout << "\nOriginal array:\n";
|
||||
printArr(a, n);
|
||||
|
||||
sortArr(a, n);
|
||||
|
||||
cout << "\nSorted array:\n";
|
||||
printArr(a, n);
|
||||
|
||||
cout << "\nArray without first and last elements:\n";
|
||||
printArr(a + 1, n - 2);
|
||||
|
||||
delete[] a;
|
||||
return 0;
|
||||
|
||||
}
|
||||
@@ -1,85 +0,0 @@
|
||||
#include <iostream>
|
||||
using namespace std;
|
||||
|
||||
int* Pos(int* a, int n, int& res_n) {
|
||||
int* tmp = new int[3];
|
||||
res_n = 0;
|
||||
for (int i = 0; i < 3 && i < n; ++i)
|
||||
if (a[i] > 0)
|
||||
tmp[res_n++] = a[i];
|
||||
int* res = new int[res_n];
|
||||
for (int i = 0; i < res_n; ++i) res[i] = tmp[i];
|
||||
delete[] tmp;
|
||||
return res;
|
||||
}
|
||||
|
||||
int* last3(int* a, int n, int& res_n) {
|
||||
res_n = (n >= 3) ? 3 : n;
|
||||
int* res = new int[res_n];
|
||||
for (int i = 0; i < res_n; ++i)
|
||||
res[i] = a[n - res_n + i];
|
||||
return res;
|
||||
}
|
||||
|
||||
int* min3(int* a, int n, int& res_n) {
|
||||
int* tmp = new int[n];
|
||||
for (int i = 0; i < n; ++i) tmp[i] = a[i];
|
||||
for (int i = 0; i < n - 1; ++i)
|
||||
for (int j = i + 1; j < n; ++j)
|
||||
if (tmp[i] > tmp[j]) { int t = tmp[i]; tmp[i] = tmp[j]; tmp[j] = t; }
|
||||
res_n = (n >= 3) ? 3 : n;
|
||||
int* res = new int[res_n];
|
||||
for (int i = 0; i < res_n; ++i) res[i] = tmp[i];
|
||||
delete[] tmp;
|
||||
return res;
|
||||
}
|
||||
|
||||
typedef int* (*searchFunc)(int*, int, int&);
|
||||
|
||||
void service(int* a, int n, searchFunc f) {
|
||||
int res_n;
|
||||
int* res = f(a, n, res_n);
|
||||
cout << "Result: ";
|
||||
for (int i = 0; i < res_n; ++i) cout << res[i] << " ";
|
||||
cout << endl;
|
||||
delete[] res;
|
||||
}
|
||||
|
||||
int main() {
|
||||
srand(time(NULL));
|
||||
int n;
|
||||
cout << "n(n>=3)= ";
|
||||
cin >> n;
|
||||
if (n < 3) {
|
||||
cerr << "Error: size Array!!";
|
||||
return 1;
|
||||
}
|
||||
int* arr = new int[n];
|
||||
for (int i = 0; i < n; ++i)
|
||||
arr[i] = rand() % 41 - 20;
|
||||
|
||||
cout << "Array: ";
|
||||
for (int i = 0; i < n; ++i) cout << arr[i] << " ";
|
||||
cout << endl;
|
||||
|
||||
searchFunc arrFunc[3] = { Pos, last3, min3 };
|
||||
|
||||
int choice;
|
||||
do {
|
||||
cout << "\nMenu:\n"
|
||||
<< "1) Array of the first 3 elements > 0\n"
|
||||
<< "2) Array of the last 3 elements\n"
|
||||
<< "3) Array of the 3 smallest elements\n"
|
||||
<< "4) Exit\n"
|
||||
<< "Select action (1-4): ";
|
||||
cin >> choice;
|
||||
|
||||
if (choice >= 1 && choice <= 3)
|
||||
service(arr, n, arrFunc[choice - 1]);
|
||||
else if (choice != 4)
|
||||
cout << "Incorrect choice!\n";
|
||||
} while (choice != 4);
|
||||
|
||||
delete[] arr;
|
||||
return 0;
|
||||
}
|
||||
70
task3.cpp
70
task3.cpp
@@ -1,70 +0,0 @@
|
||||
#include <iostream>
|
||||
using namespace std;
|
||||
|
||||
void Pos(int* a, int n) {
|
||||
int count = 0;
|
||||
for (int i = 0; i < 3 && i < n; ++i)
|
||||
if (a[i] > 0) ++count;
|
||||
cout << "The number of the first 3 elements > 0: " << count << endl;
|
||||
}
|
||||
|
||||
void Show1(int* a, int n) {
|
||||
cout << "The last 3 elements: ";
|
||||
for (int i = (n >= 3 ? n - 3 : 0); i < n; ++i)
|
||||
cout << a[i] << " ";
|
||||
cout << endl;
|
||||
}
|
||||
|
||||
void Show2(int* a, int n) {
|
||||
int* b = new int[n];
|
||||
for (int i = 0; i < n; ++i) b[i] = a[i];
|
||||
|
||||
for (int i = 0; i < n-1; ++i)
|
||||
for (int j = i+1; j < n; ++j)
|
||||
if (b[i] > b[j]) { int t = b[i]; b[i] = b[j]; b[j] = t; }
|
||||
cout << "The three smallest elements: ";
|
||||
for (int i = 0; i < 3 && i < n; ++i) cout << b[i] << " ";
|
||||
cout << endl;
|
||||
delete[] b;
|
||||
}
|
||||
|
||||
typedef void (*searchFunc)(int*, int);
|
||||
|
||||
void service(int* a, int n, searchFunc f) {
|
||||
f(a, n);
|
||||
}
|
||||
|
||||
int main() {
|
||||
srand(time(NULL));
|
||||
int n;
|
||||
cout << "n(n>=3)= ";
|
||||
cin >> n;
|
||||
if (n < 3) {
|
||||
cerr << "Error: size Array!!";
|
||||
return 1;
|
||||
}
|
||||
int* arr = new int[n];
|
||||
for (int i = 0; i < n; ++i)
|
||||
arr[i] = rand() % 41 - 20;
|
||||
|
||||
cout << "Array: ";
|
||||
for (int i = 0; i < n; ++i) cout << arr[i] << " ";
|
||||
cout << endl;
|
||||
|
||||
searchFunc arrFunc[3] = { Pos, Show1, Show2 };
|
||||
|
||||
cout << "Menu:\n"
|
||||
<< "1) The number of the first 3 elements > 0\n"
|
||||
<< "2) Show the last 3 items\n"
|
||||
<< "3) Display the 3 smallest elements\n"
|
||||
<< "Select an action (1-3): ";
|
||||
int choice;
|
||||
cin >> choice;
|
||||
if (choice >= 1 && choice <= 3)
|
||||
service(arr, n, arrFunc[choice-1]);
|
||||
else
|
||||
cout << "Incorrect choice!\n";
|
||||
|
||||
delete[] arr;
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user