/in/foo.cc: In function 'long long int calc(int)':
/in/foo.cc:26:14: warning: unused variable 'k' [-Wunused-variable]
     ll ans=0,k=1;
              ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:40:22: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
     printf("%d\n",cnt);
                      ^
/in/foo.cc:42:29: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
         printf("%d\n",ans[i]);
                             ^