initial commit

C++/lesson4/task7.cpp

@@ -0,0 +1,20 @@
+#include <iostream>
+#include <string>
+
+int main() {
+    std::string s;
+    std::string f;
+    std::string r;
+
+    std::getline(std::cin, s);
+    std::getline(std::cin, f);
+    std::getline(std::cin, r);
+
+    size_t pos = s.find(f);
+    while (pos != std::string::npos) {
+        s.replace(pos, f.length(), r);
+        pos = s.find(f);
+    }
+
+    std::cout << s << '\n';
+}