士兵队列训练问题

#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int main()
{
    int t,n,i,p,sum,s[5005],cut;
    while (~scanf("%d",&t))
    {
        while (t--)
        {
            p=2;
            scanf("%d",&n);
            memset(s,0,sizeof(s));
            sum=0;
            while (n-sum>3)
            {
                cut=0;
                for (i=1;i<=n;i++)
                {
                    if(s[i]) continue;
                    cut++;
                    if (cut==p) {sum++;s[i]=1;cut=0;}
                }
                if (p==3) p--;
                else p++;
            }
            cut=0;
            for (i=1;i<=n;i++)
            if (!s[i])
            {
                cut++;
                if (cut!=n-sum)
                 printf("%d ",i);
                 else
                printf("%d\n",i);}
        }
    }
}