/in/foo.cc: In function 'int main()':
/in/foo.cc:19:27: warning: iteration 8 invokes undefined behavior [-Waggressive-loop-optimizations]
   19 |                 if(cnt[i+1]==n-1)
      |                    ~~~~~~~^
/in/foo.cc:17:22: note: within this loop
   17 |         for(int i=1;i<=10;i++)
      |                     ~^~~~