/in/foo.cc: In function 'int main()':
/in/foo.cc:7:18: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
  for(int i=1;a=a/b;i++){
                  ^
/in/foo.cc:12:5: error: 'i' was not declared in this scope
  if(i<=100){
     ^
/in/foo.cc:5:10: warning: unused variable 'm' [-Wunused-variable]
  int a,b,m=1,n=1,c=0;
          ^
/in/foo.cc:5:14: warning: unused variable 'n' [-Wunused-variable]
  int a,b,m=1,n=1,c=0;
              ^
/in/foo.cc:18:1: error: expected '}' at end of input
 }
 ^