View Compilation Error

0_0_28506282_16354.cpp: In function 'int main()':
0_0_28506282_16354.cpp:3:15: error: 'printf' was not declared in this scope
   printf("1\n");
               ^
0_0_28506282_16354.cpp:6:17: error: 'scanf' was not declared in this scope
   scanf("%d", &i);
                 ^
0_0_28506282_16354.cpp:8:9: error: 'Game' was not declared in this scope
    Game();
         ^
0_0_28506282_16354.cpp:18:16: error: 'system' was not declared in this scope
  system("pause");
                ^