/in/foo.cc: In function 'int main()':
/in/foo.cc:6:34: warning: iteration 105 invokes undefined behavior [-Waggressive-loop-optimizations]
     for(int j=0;j<106;j++) mon[j]=0;
                            ~~~~~~^~
/in/foo.cc:6:18: note: within this loop
     for(int j=0;j<106;j++) mon[j]=0;
                 ~^~~~