foo.cc: In function 'int main()':
foo.cc:20:29: warning: iteration 1099998 invokes undefined behavior [-Waggressive-loop-optimizations]
   20 |                 if(isprime[i])
      |                    ~~~~~~~~~^
foo.cc:18:23: note: within this loop
   18 |         for(int i=2; i<=1100000; i++)
      |                      ~^~~~~~~~~

Found 10 testcases.
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