/in/foo.cc: In function 'int main()':
/in/foo.cc:22:11: warning: iteration 1003000 invokes undefined behavior [-Waggressive-loop-optimizations]
       f[i]=-INF;
       ~~~~^~~~~
/in/foo.cc:21:18: note: within this loop
     for(int i=0;i<=CON*1000;i++)
                 ~^~~~~~~~~~