foo.cc: In function ‘int main()’:
foo.cc:14:15: warning: iteration 1004 invokes undefined behavior [-Waggressive-loop-optimizations]
   14 |         if(b[i]>x||(b[i]==x&&i>s)){
      |            ~~~^
foo.cc:13:18: note: within this loop
   13 |     for(int i=1;i<=1005;i++){
      |                 ~^~~~~~