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ConsoleApplica44444.cpp

@@ -1,68 +0,0 @@
-#include <iostream>
-#include <fstream>
-using namespace std;
-
-int ncd(int a, int b) {
-    return (b == 0 ? a : ncd(b, a % b));
-}
-
-struct Drib {
-    int ch;
-    int zn;
-
-    void init() {
-        cout << "\nInput ch: ";
-        cin >> ch;
-        cout << "Input zn: ";
-        cin >> zn;
-        skor();
-    }
-    void skor() {
-        int d = ncd(ch, zn);
-        if (d != 0) {
-            ch /= d;
-            zn /= d;
-        }
-        
-    }
-    void print() {
-        cout << ch << "/" << zn << endl;
-    }
-};
-
-int main()
-{
-    Drib a;
-    fstream finOut;
-
-    finOut.open("info.dat", ios::binary | ios::out); //ios::out | ios::trunc);
-    if (!finOut.is_open()) {
-        cerr << "\n Error opening file(out)!!\n";
-        system("pause");
-        return 1;
-    }
-    int vUser;
-    do {
-        a.init();
-
-        finOut.write((char*)(&a), sizeof(Drib));
-        cout << "\n Create a fraction?(1/Yes 0/No) ";
-        cin >> vUser;
-    } while (vUser);
-    finOut.close();
-
-    finOut.open("info.dat", ios::binary | ios::in);
-    if (!finOut.is_open()) {
-        cerr << "\n Beta(in)!!\n";
-        system("pause");
-        return 1;
-    }
-    cout << "\nRead fractions in file:\n";
-    finOut.read((char*)(&a), sizeof(a));
-    while (finOut.good()) {
-        a.print();
-        finOut.read(reinterpret_cast<char*>(&a), sizeof(a));
-    }
-    finOut.close();
-    system("pause");
-}

FractionBinaryFile.cpp

@@ -1,127 +0,0 @@
-#include <iostream>
-#include <fstream>
-using namespace std;
-
-int ncd(int a, int b) {
-	return (b == 0 ? a : ncd(b, a % b));
-}
-
-struct Drib {
-	int ch;
-	int zn;
-
-	void init() {
-		cout << "\nInput ch: ";
-		cin >> ch;
-		cout << "Input zn: ";
-		cin >> zn;
-		skor();
-	}
-	void skor() {
-		int d = ncd(ch, zn);
-		if (d != 0) {
-			ch /= d;
-			zn /= d;
-		}
-	}
-	void print() {
-		cout << ch << "/" << zn << endl;
-	}
-
-};
-int main()
-{
-	Drib a;
-	Drib* pDrip = new Drib;
-	fstream finOut;
-
-	finOut.open("info.dat", ios::binary | ios::out);//ios::out|ios::trunc);
-	if (!finOut.is_open()) {
-		cerr << "\n Error opening file(out)!!\n";
-		system("pause");
-		return 1;
-	}
-	int vUser;
-	do {
-
-		a.init();
-		pDrip->init();
-		finOut.write((char*)pDrip, sizeof(Drib));
-		//finOut.write(reinterpret_cast<char*>(&a), sizeof(a));
-		finOut.write((char*)(&a), sizeof(Drib));
-		cout << "\n Create a fraction?(1/Yes  0/No) ";
-		cin >> vUser;
-	} while (vUser);
-	finOut.close();
-
-	/*ifstream fIn;
-	finOut.open("info.dat", ios::binary );*/
-
-	finOut.open("info.dat", ios::binary | ios::in);
-	if (!finOut.is_open()) {
-		cerr << "\n Beda(in)!!";
-		system("pause");
-		return 1;
-	}
-	cout << "\nRead fractions in file:\n";
-	finOut.read((char*)(&a), sizeof(a));//1 Drip
-	while (finOut.good()) {//!finOut.eof()
-		a.print();
-		finOut.read(reinterpret_cast<char*>(&a), sizeof(a));
-	}
-	finOut.close();
-	system("pause");
-	Drib* p;
-	finOut.open("info.dat", ios::binary | ios::in);
-	if (!finOut.is_open()) {
-		cerr << "\n Error opening file(in)!!";
-		system("pause");
-		return 1;
-	}
-	finOut.seekg(0, ios::end);//ios::beg ios::cur
-	int endpos = (int)finOut.tellg();
-	int n = endpos / sizeof(Drib);
-	cout << "\n There are  " << n << " fractions in the file\n";
-	if (n == 0) {
-		return 0;
-	}
-	finOut.seekg(0);//finOut.seekg(0, ios::beg);
-	p = new Drib[n];
-	int i = 0;
-	for (i = 0; i < n; ++i) {
-		finOut.read(reinterpret_cast<char*>(p + i), sizeof(Drib));
-	}
-
-	cout << "Counted " << i << " fractions\n";
-	for (i = 0; i < n; ++i) {
-		p[i].print();
-
-	}
-
-	//finOut.seekg(sizeof(drob)*(n-1));
-	finOut.seekg(-(streamoff)sizeof(Drib), ios::end);
-	finOut.read(reinterpret_cast<char*>(&a), sizeof(Drib));
-	cout << "\n The last fraction:\n";
-	a.print();
-	delete[] p;
-	finOut.close();
-	a.init();
-	finOut.open("info.dat", ios::binary | ios::app);
-	finOut.write((char*)(&a), sizeof(a));
-	//finOut.seekp(0, ios::end);
-	endpos = (int)finOut.tellp();
-	n = endpos / sizeof(Drib);
-	cout << "\n There are  " << n << " fractions in the file\n";
-	finOut.close();
-	finOut.open("info.dat", ios::binary | ios::in);
-	if (!finOut.is_open()) {
-		cerr << "\n Error: bad open file(in)!!";
-		system("pause");
-		return 1;
-	}
-	finOut.seekg(-(streamoff)sizeof(Drib), ios::end);
-	finOut.read(reinterpret_cast<char*>(&a), sizeof(Drib));
-	cout << "\n The last fraction:\n";
-	a.print();
-}
-

Home_Task1.cpp

@@ -1,151 +0,0 @@
-//#include <iostream>
-//#include <fstream>
-//#define N 7
-//using namespace std;
-//const int sz = 25;
-//struct Marsh {
-//    char nomer[7]
-//    char marshBegin[sz];//<2F><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-//    char marshEnd[sz];//<2F><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-//    int count;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-//    int tm;//<2F><><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-//    void init();
-//    void show();
-//};
-//
-//int main()
-//{
-//    Marsh marsh;
-//    int vUser;
-//    ofstream fout;
-//    fout.open(".\\Data\\info.dat", ios::binary);
-//    if (!fout.is_open()) {
-//        cerr << "Error: open file(out)\n";
-//        system("pause");
-//        return 1;
-//    }
-//
-//    do {
-//        marsh.init();
-//        fout.write(reinterpret_cast<char*>(&marsh), sizeof(Marsh));
-//    } while (vUser != 0);
-//    fout.close();
-//    ifstream fin;
-//    fin.open(".\\Data\\info.dat", ios::binary);
-//    if (!fin.is_open()) {
-//        cerr << "Error: open file(in)\n";
-//        system("pause");
-//        return 1;
-//    }
-//    fin.seekg(0, ios::end);
-//    int size = (int)fin.tellg();
-//    int n = size/sizeof(M)
-//}
-//void Marsh::init() {
-//    cout << "Input nomer: ";
-//    cin.getline(nomer, N);
-//    cout << "Begin: ";
-//    cin.get(marshBegin, sz);
-//    cout << "End: ";
-//    cin.get(marshEnd, sz);
-//    cout << " count: ";
-//    cin >> tm;
-//    cin.ignore();
-//}
-//void Marsh::show() {
-//    cout << "Nomer: " << nomer
-//        << "\nBegin: " << marshBegin
-//        << "\nEnd: " << marshEnd
-//        << "\n count: " << count + 2
-//        << "\n time: " << fm << endl;
-//}
-//
-
-#include <iostream>
-#include <fstream>
-#define N 7
-using namespace std;
-const int sz = 25;
-
-struct Marsh {
-    char nomer[7];
-    char marshBegin[sz];
-    char marshEnd[sz];
-    int count;
-    int tm;//time
-    void init();
-    void show();
-};
-
-void show(Marsh* p, int n) {
-    for (int i = 0; i < n; ++i)
-        p[i].show();
-}
-
-int main()
-{
-    //".\\resFile\\infoMars.dat"
-   // Marsh marsh;
-    Marsh* pMarsh = new Marsh;
-    int vUser;
-    ofstream fout;
-    fout.open(".\\Data\\info.dat", ios::binary);//ios::out
-    if (!fout.is_open()) {
-        cerr << "Error: open file(out)\n";
-        system("pause");
-        return 1;
-    }
-
-    do {
-        /*marsh.init();
-        fout.write(reinterpret_cast<char*>(&marsh), sizeof(Marsh));*/
-        pMarsh->init();
-        fout.write(reinterpret_cast<char*>(pMarsh), sizeof(Marsh));
-        cout << "Create Marsh?(1(Yes)/0(No) ";
-        cin >> vUser;
-        cin.ignore();
-    } while (vUser != 0);
-    delete pMarsh;
-    fout.close();
-    ifstream fIn;
-    fIn.open(".\\Data\\info.dat", ios::binary);//ios::out
-    if (!fIn.is_open()) {
-        cerr << "Error: open file(out)\n";
-        system("pause");
-        return 1;
-    }
-    fIn.seekg(0, ios::end);
-    int size = (int)fIn.tellg();
-    int n = size / sizeof(Marsh);//n!=0
-    pMarsh = new Marsh[n];
-    fIn.seekg(0);
-    for (int i = 0; i < n; ++i) {
-        fIn.read(reinterpret_cast<char*>(pMarsh + i), sizeof(Marsh));
-    }
-    fIn.close();
-    show(pMarsh, n);
-    delete[] pMarsh;
-    system("pause");
-}
-void Marsh::init() {
-    cout << "Input nomer: ";
-    cin.getline(nomer, N);
-    cout << "Begin: ";
-    cin.getline(marshBegin, sz);
-    cout << "End: ";
-    cin.getline(marshEnd, sz);
-    cout << " count: ";
-    cin >> count;
-    cout << "midle time:  ";
-    cin >> tm;
-    cin.ignore();
-}
-void Marsh::show() {
-    cout << "Nomer: " << nomer
-        << "\nBegin: " << marshBegin
-        << "\n End: " << marshEnd
-        << "\n count: " << count + 2
-        << "\n time: " << tm << endl;
-}
-
-

task1.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    int n;
+    cout << "Enter a four-digit number: ";
+    cin >> n;
+
+    if (n < 1000 || n > 9999) {
+        cout << "Error! This is not a four-digit number." << endl;
+    } else {
+        int a = n / 1000;
+        int b = (n / 100) % 10;
+        int c = (n / 10) % 10;
+        int d = n % 10;
+        int r = c * 1000 + d * 100 + a * 10 + b;
+        cout << "Result: " << r << endl;
+    }
+    return 0;
+}

task2.cpp

@@ -0,0 +1,39 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    double ab;
+    double bc;
+    double weight;
+    cout << "Distance A-B: ";
+    cin >> ab;
+    cout << "Distance B-C: ";
+    cin >> bc;
+    cout << "Cargo weight: ";
+    cin >> weight;
+
+    double fuel;
+    if (weight <= 500) fuel = 1;
+    else if (weight <= 1000) fuel = 4;
+    else if (weight <= 1500) fuel = 7;
+    else if (weight <= 2000) fuel = 9;
+    else {
+        cout << "The airplane cannot lift such a load!" << endl;
+        return 0;
+    }
+
+    double nAB = ab * fuel;
+    double nBC = bc * fuel;
+
+    if (nAB > 300) {
+        cout << "It is impossible to reach point B by flight." << endl;
+    }
+    else if (nBC > 300) {
+        cout << "It is impossible to fly from B to C." << endl;
+    }
+    else {
+        double fill = max(0.0, nBC - (300 - nAB));
+        cout << "Minimum refuel at B: " << fill << " liters." << endl;
+    }
+    return 0;
+}

task3.cpp

@@ -0,0 +1,55 @@
+#include <iostream>
+#include <clocale>
+using namespace std;
+
+int main() {
+    int c;
+    cout << "Menu:" << endl;
+    cout << "1. Income and delays -> lines of code" << endl;
+    cout << "2. Lines of code and desired salary -> delay" << endl;
+    cout << "3. Lines of code and delays -> salary" << endl;
+    cin >> c;
+
+    int l;
+    int t;
+    int s;
+
+    switch (c) {
+        case 1:
+            cout << "Enter the desired income ($): ";
+            cin >> s;
+            cout << "Enter the number of tardies: ";
+            cin >> t;
+            s += (t / 3) * 20;
+            l = (s / 50.0) * 100;
+            cout << "Vasyl needs to write " << l << " lines of code." << endl;
+            break;
+
+        case 2:
+            cout << "Enter the number of lines of code: ";
+            cin >> l;
+            cout << "Enter your desired salary ($): ";
+            cin >> s;
+            int b;
+            b = (l / 100) * 50;
+            cout << "Vasya can be late at most "
+                 << ((b - s) / 20) * 3 << " time(s)." << endl;
+            break;
+
+        case 3:
+            cout << "Enter the number of lines of code: ";
+            cin >> l;
+            cout << "Enter the number of tardies: ";
+            cin >> t;
+            s = (l / 100) * 50 - (t / 3) * 20;
+            if (s > 0)
+                cout << "Vasyl's salary: " << s << " $" << endl;
+            else
+                cout << "Vasya will not be paid anything." << endl;
+            break;
+
+        default:
+            cout << "Invalid choice." << endl;
+    }
+    return 0;
+}

task4.cpp

@@ -0,0 +1,19 @@
+#include <iostream>
+#include <clocale>
+using namespace std;
+
+int main() {
+    int f;
+    cout << "Enter the finger number (1-5): ";
+    cin >> f;
+
+    switch (f) {
+        case 1: cout << "pollex" << endl; break;
+        case 2: cout << "index" << endl; break;
+        case 3: cout << "medius" << endl; break;
+        case 4: cout << "annularis" << endl; break;
+        case 5: cout << "digitus minimus" << endl; break;
+        default: cout << "Incorrect number!" << endl;
+    }
+    return 0;
+}

task5.cpp

@@ -0,0 +1,35 @@
+#include <iostream>
+using namespace std;
+
+int main() {
+    double a;
+    double b;
+    double c;
+    double x;
+    double y;
+
+    cout << "Enter the edges of the brick a, b, c: ";
+    cin >> a >> b >> c;
+    cout << "Enter the hole dimensions x, y: ";
+    cin >> x >> y;
+
+    double min1 = a, min2 = b;
+
+    if (c < min1) {
+        min2 = min1;
+        min1 = c;
+    }
+    else if (c < min2) {
+        min2 = c;
+    }
+
+    if ((min1 <= x && min2 <= y) || (min1 <= y && min2 <= x)) {
+        cout << "The brick will pass through the opening." << endl;
+    }
+    else {
+        cout << "The brick won't fit through the opening.." << endl;
+    }
+
+    return 0;
+
+}