View Compilation Error

0_0_39330353_4759.cpp: In function 'int main()':
0_0_39330353_4759.cpp:6:3: error: 'scanf' was not declared in this scope
    6 |   scanf("%d%d",&a,&b);
      |   ^~~~~
0_0_39330353_4759.cpp:7:3: error: 'printf' was not declared in this scope
    7 |   printf("%d\n",a+b);
      |   ^~~~~~
0_0_39330353_4759.cpp:1:1: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
  +++ |+#include <cstdio>
    1 | int main()
0_0_39330353_4759.cpp:8:7: error: 'getchar' was not declared in this scope
    8 |   c = getchar();
      |       ^~~~~~~
0_0_39330353_4759.cpp:8:7: note: 'getchar' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?