UVa-10935 - Throwing cards away I

简单的队列。

#include<iostream>
#include<cstdio>
#include<cstring>
#include<queue>
using namespace std;
int main()
{
    //freopen("in.in","r",stdin);
    //freopen("out.in","w",stdout);
    int n;
    while(~scanf("%d",&n)&&n)
    {
        queue<int> q;
        for(int i=1;i<=n;i++) q.push(i);
        printf("Discarded cards:");
        if(n>1)
        {
            for(int i=1;i<=n-2;i++)
            {
                printf(" %d,",q.front());
                q.pop();
                q.push(q.front());
                q.pop();
            }
            printf(" %d\n",q.front());
            q.pop();
        }
        else printf("\n");
        printf("Remaining card: %d\n",q.front());
    }
}