int main() {
                 << "Hello, world!" << endl;
                return 0;
              }
            

                int main()
                {
                   integer_number = 3;
                  cout << integer_number;
                }
            

              int main()
              {
                 fin("INPUT_FILE_NAME");
                fin >> x;
                fin.; // to close the file
              }
            

              int main()
              {
                int x = 17;
                int y = 5;
                int remainder = x  y;

                cout << "The remainder of dividing " << x << " by " << y << " is: " << remainder << endl;

                return 0;
              }
            

              int main() {
                int z = 15;
            
                if (z  10) {
                    cout << "The number " << z << " is less than 10" << endl;
                } else {
                    cout << "The number " << z << " is not less than 10" << endl;
                }
            
                return 0;
              }
            

                int main() {
                    int sum = 0;
                    for (int i = ; i <= ; i++) {
                        sum += i;
                    }
                    cout << "The sum of the first 10 natural numbers is: " << sum << endl;
                    return 0;
                }
            

              int main() {
                  int arr[5] = {1, 2, 3, 4, 5}; 
                  int sum = 0;
              
                  for (int i = 0; i ; i++) {
                      sum  arr[i];
                  }
              
                  cout << "The sum of the array elements is: " << sum << endl;
              
                  return 0;
              }
          

              int recursiveSum(int n) {
                  if (n <= 0) return 0;
                  return n + recursiveSum(n - 1);
              }
              
              int main() {
                  int result = recursiveSum(5);
                  cout << result;
                  return 0;
              }
            

              void processString(char text[]) {
                for (int i = 0; text[i] != '\0'; i++) {
                    if (text[i] >= 'a' && text[i] <= 'z') {
                        text[i] = text[i] - 'a' + 'A';
                    }
                }
            }
            
            int main() {
                char text[] = "Hello, World!";
                processString(text);
                cout << text;
                return 0;
            }