/in/foo.cc: In function 'int main()':
/in/foo.cc:15:35: warning: iteration 100000 invokes undefined behavior [-Waggressive-loop-optimizations]
   15 |  for(int i=0;i<=999999;i++) num[i]=0;
      |                             ~~~~~~^~
/in/foo.cc:15:15: note: within this loop
   15 |  for(int i=0;i<=999999;i++) num[i]=0;
      |              ~^~~~~~~~