/in/foo.cc: In function 'int main()':
/in/foo.cc:41:13: warning: iteration 25 invokes undefined behavior [-Waggressive-loop-optimizations]
   cccnt+=a[i];
          ~~~^
/in/foo.cc:39:18: note: within this loop
  for(int i = 1;i <= 26;i++)
                ~~^~~~~