poj2552

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#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cstdio>
using namespace std;

#define maxn 35005

int n;
int pre[maxn], next[maxn];

void del(int a)
{
    pre[next[a]] = pre[a];
    next[pre[a]] = next[a];
}

void init()
{
    n = 35000;
    for (int i = 0; i < n; i++)
    {
        pre[i + 1] = i;
        next[i] = i + 1;
    }
    next[n] = -1;
    del(1);
}

void work()
{
    int cnt = 0;
    while (cnt < 3000)
    {
        cnt++;
        int i = next[0];
        printf(",%d", i);
        int a = i;
        del(i);
        int x = 0;
        while (next[i] != -1)
        {
            i = next[i];
            x++;
            if (x % a == 0)
                del(i);
        }
    }
}

int main()
{
    freopen("t.txt", "w", stdout);
    init();
    work();
    return 0;
}