Добавить Task4.cpp

Task4.cpp

@@ -0,0 +1,32 @@
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+int main() {
+    ifstream fin("..\\MyFile\\info.txt");
+
+    if (!fin) {
+        cout << "Error: open input file!!\n";
+        system("pause");
+        return 1;
+    }
+
+    char s[100];
+    char a;
+    int count = 0;
+
+    cout << "Enter the character:";
+    cin >> a;
+
+    while (fin >> s) {
+        if (tolower(s[0]) == tolower(a)) {
+            count++;
+        }
+    }
+
+    cout << "Number of words starting with '" << a << "': " << count << endl;
+
+    fin.close();
+    system("pause");
+}

task1.cpp

@@ -1,21 +0,0 @@
-#include <iostream>
-#define SIZE 80
-using namespace std;
-
-int main()
-{
-    char str[SIZE];
-    cout << "Input string: ";
-    cin.getline(str, SIZE);
-
-    int i = 0;
-    while (str[i] != '\0') {
-        if (str[i] == ' ') {
-            str[i] = '\t';
-        }
-        ++i;
-    }
-
-    cout << "Modified string: " << str << endl;
-    system("pause");
-}

task2.cpp

@@ -1,53 +0,0 @@
-#pragma warning(disable : 4996)
-#define SIZE 80
-#include <iostream>
-using namespace std;
-
-int mystrlen(const char* str) {
-    int len = 0;
-    for (; str[len] != '\0'; ++len) {}
-    return len;
-}
-
-char* mystrcat(char* str1, const char* str2) {
-    int i = mystrlen(str1);
-    int j;
-    for (j = 0; str2[j] != '\0'; ++j) {
-        str1[i + j] = str2[j];
-    }
-    str1[i + j] = '\0';
-    return str1;
-}
-
-char* mystrchr(char* str, char s) {
-    for (int i = 0; str[i] != '\0'; ++i) {
-        if (str[i] == s) {
-            return &str[i];
-        }
-    }
-    return 0;
-}
-
-int main() {
-    char str1[SIZE];
-    char str2[SIZE];
-    cout << "Input first string: ";
-    cin.getline(str1, SIZE);
-    cout << "Input second string: ";
-    cin.getline(str2, SIZE);
-
-    cout << "mystrlen(str1): " << mystrlen(str1) << endl;
-    cout << "mystrcat(str1, str2): " << mystrcat(str1, str2) << endl;
-
-    char ch;
-    cout << "Input char to search in str1: ";
-    cin >> ch;
-    char* f = mystrchr(str1, ch);
-    if (f) {
-        cout << "mystrchr(str1, '" << ch << "): " << f << endl;
-    }
-    else {
-        cout << "mystrchr(str1, '" << ch << "): 0" << endl;
-    }
-    system("pause");
-}

task4.cpp

@@ -1,53 +0,0 @@
-#pragma warning(disable : 4996)
-#define SIZE 80
-#include <iostream>
-using namespace std;
-
-int mystrlen(const char* str) {
-    int len = 0;
-    for (; str[len] != '\0'; ++len) {}
-    return len;
-}
-
-char* mystrcat(char* str1, const char* str2) {
-    int i = mystrlen(str1);
-    int j = mystrlen(str2);
-    for (int k = 0; k < j; ++k) {
-        str1[i + k] = str2[k];
-    }
-    str1[i + j] = '\0';
-    return str1;
-}
-
-char* mystrchr(char* str, char s) {
-    for (int i = 0; str[i] != '\0'; ++i) {
-        if (str[i] == s) {
-            return &str[i];
-        }
-    }
-    return 0;
-}
-
-int main() {
-    char str1[SIZE];
-    char str2[SIZE];
-    cout << "Input first string: ";
-    cin.getline(str1, SIZE);
-    cout << "Input second string: ";
-    cin.getline(str2, SIZE);
-
-    cout << "mystrlen(str1): " << mystrlen(str1) << endl;
-    cout << "mystrcat(str1, str2): " << mystrcat(str1, str2) << endl;
-
-    char ch;
-    cout << "Input char to search in str1: ";
-    cin >> ch;
-    char* f = mystrchr(str1, ch);
-    if (f) {
-        cout << "mystrchr(str1, '" << ch << "'): " << f << endl;
-    }
-    else {
-        cout << "mystrchr(str1, '" << ch << "'): 0" << endl;
-    }
-    system("pause");
-}