/in/foo.cc: In function 'int main()':
/in/foo.cc:66:30: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   if(i%t==0) printf("%d ",now);
                              ^
/in/foo.cc: In function 'int check(int)':
/in/foo.cc:51:9: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ans;
         ^~~