foo.cc: In function ‘int main()’:
foo.cc:23:11: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   23 |     if(run=1)
      |        ~~~^~
foo.cc:59:27: error: expected ‘;’ before ‘return’
   59 |         printf("%d",sum);1
      |                           ^
      |                           ;
   60 |     return 0;
      |     ~~~~~~                 
foo.cc:59:26: warning: statement has no effect [-Wunused-value]
   59 |         printf("%d",sum);1
      |                          ^