hdu 2207水题

这题是大水题。不过我用了一种比较诡异的写法，也不是为了装逼，主要是为了熟悉一下bitset的用法以及数据类型的转换。

/*

 * hdu2207/win.cpp

 * Created on: 2012-11-5

 * Author    : ben

 */

#include <cstdio>

#include <cstdlib>

#include <cstring>

#include <cmath>

#include <ctime>

#include <iostream>

#include <algorithm>

#include <queue>

#include <set>

#include <map>

#include <stack>

#include <string>

#include <vector>

#include <deque>

#include <list>

#include <functional>

#include <numeric>

#include <cctype>

#include <bitset>

using namespace std;



int main() {

#ifndef ONLINE_JUDGE

    freopen("data.in", "r", stdin);

#endif

    int n;

    while(scanf("%d", &n) == 1) {

        n += 2;

        string temp("11111111111111111111111111111111");

        for(int i = 31; i > 0; i--) {

            if(n > 0) {

                temp[i] = '0';

            }

            n >>= 1;

        }

        bitset<32> b(temp);

        unsigned char *p = (unsigned char *)(&b);

        for(int i = 3; i > 0; i--) {

            printf("%u.", (unsigned int)p[i]);

        }

        printf("%u\n", (unsigned int)p[0]);

    }

    return 0;

}