View Compilation Error

0_0_19246516_10056.cpp: In function 'int main()':
0_0_19246516_10056.cpp:10:15: error: 'scanf' was not declared in this scope
  scanf("%d",&p);
               ^
0_0_19246516_10056.cpp:16:32: error: 'printf' was not declared in this scope
        printf("%d %d\n",x/f,y/f);
                                ^