/in/foo.cc: In function 'int main()':
/in/foo.cc:48:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'int*' [-Wformat=]
  printf("%d",&ans);
                  ^
/in/foo.cc:45:12: warning: iteration 99 invokes undefined behavior [-Waggressive-loop-optimizations]
   if(c==a[i]&&b==a[i+1]) ans+=1;
         ~~~^
/in/foo.cc:43:15: note: within this loop
  for(int i=1;i<=100;i++)
              ~^~~~~