foo.cc: In function 'int main()':
foo.cc:7:23: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=]
     scanf("%d%d",&n,&r);
                       ^
foo.cc:7:23: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'll* {aka long long int*}' [-Wformat=]

自豪的采用jd5进行评测(github.com/masnn/jd5)