foo.cc: In function 'int main()':
foo.cc:74:49: warning: format '%lld' expects argument of type 'long long int', but argument 2 has type 'int' [-Wformat=]
     for(int i=1;i<=m;i++) printf("%lld\n",ans[i]);
                                           ~~~~~~^

正在同步测试数据，请稍后
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。