View Compilation Error

0_0_28596646_21046.cpp: In function 'int main()':
0_0_28596646_21046.cpp:4:15: error: 'scanf' was not declared in this scope
  scanf("%d",&N);
               ^
0_0_28596646_21046.cpp:14:27: error: 'printf' was not declared in this scope
   printf("%.1f %.1f\n",x,y);
                           ^