View Compilation Error

0_0_39900285_15940.cpp: In function 'int main()':
0_0_39900285_15940.cpp:3:9: error: 'scanf' was not declared in this scope
    3 |         scanf("%d%d", &A, &B);
      |         ^~~~~
0_0_39900285_15940.cpp:5:9: error: 'printf' was not declared in this scope
    5 |         printf("%d\n",sum);
      |         ^~~~~~
0_0_39900285_15940.cpp:1:1: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
  +++ |+#include <cstdio>
    1 | int main() {