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  1. #include <iostream>
  2. #include <string>
  3.  
  4. using std::cout;
  5. using std::cin;
  6. using std::string;
  7. using std::stoi;
  8.  
  9. int main() {
  10. setlocale(LC_ALL, "Rus");
  11. string A = " ";
  12. cout << "Введите числа: ";
  13. string f = " ";
  14. char fplus = '+';
  15. char fravno = '=';
  16. int k = 0;
  17. int p = 0;
  18. size_t n = 0;
  19. cin >> n;
  20. for (size_t i = 0; i < n; ++i) {
  21. cin >> A;
  22. f += A;
  23. f += fplus;
  24. k = stoi(A);
  25. p += k;
  26. }
  27. f += fravno;
  28. cout << f << p;
  29. }
  30.  
Success #stdin #stdout 0s 3468KB
stdin
3 4 5 6
stdout
Введите числа:  4+5+6+=15