/in/foo.cc: In function 'int gethe(int, int)':
/in/foo.cc:42:19: error: 's' was not declared in this scope
   int count=100+2*s[i].k;
                   ^
/in/foo.cc:42:7: warning: unused variable 'count' [-Wunused-variable]
   int count=100+2*s[i].k;
       ^~~~~
/in/foo.cc:43:9: error: 'count' was not declared in this scope
  return count;
         ^~~~~