/in/foo.cc: In function 'int main()':
/in/foo.cc:13:28: warning: iteration 9 invokes undefined behavior [-Waggressive-loop-optimizations]
   13 |                 if(tao>=a[i]){
      |                         ~~~^
/in/foo.cc:12:22: note: within this loop
   12 |         for(int i=1;i<=10;i++){
      |                     ~^~~~