Main.cc: In function 'int main()':
Main.cc:2:20: error: 'scanf' was not declared in this scope
    2 |         int a, b = scanf("%d%d", &a, &b);
      |                    ^~~~~
Main.cc:4:17: error: 'printf' was not declared in this scope
    4 |                 printf("%d", a + b);
      |                 ^~~~~~
Main.cc:1:1: note: 'printf' is defined in header '<cstdio>'; did you forget to '#include <cstdio>'?
  +++ |+#include <cstdio>
    1 | int main() {