51Nod 1073 约瑟夫环

题目链接

#include<iostream>
#include<algorithm>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<vector>
using namespace std;
int main(){
int n,k;
cin>>n>>k;
int out=0;
for(int i=2;i<=n;i++){
out=(out+k)%i;
}
cout<<++out;
return 0;
}