---

Lỗi biên dịch:

Main.cc: In function ‘int main()’:
Main.cc:16:25: error: ‘sum’ was not declared in this scope; did you mean ‘sumb’?
   16 |                         sum*=10;
      |                         ^~~
      |                         sumb
Main.cc:24:25: error: ‘sum’ was not declared in this scope; did you mean ‘sumb’?
   24 |                         sum*=10;
      |                         ^~~
      |                         sumb