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一道超级坑爹的水题(ACdream oj 无耻的出题人)
A - 无耻的出题人 Time Limit: 2000/1000 MS (Java/Others)      Memory Limit: 65536/32768 KB (Java/Others)  Submit Status Problem Description 听到X神要参加比赛,只会Fibnacci数的出题人被吓得哭晕在厕所。为了防止X神AK(ALL KI...
分类:其他好文   时间:2014-05-13 16:01:26    阅读次数:234
HDU 4788 (14.05.12)
Hard Disk Drive Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 647    Accepted Submission(s): 350 Problem Description   Yesterday ...
分类:其他好文   时间:2014-05-13 15:19:16    阅读次数:290
ZOJ3671:Japanese Mahjong III
Mahjong is a game of skill, strategy and calculation and involves a certain degree of chance. In this problem, we concentrate on Japanese Mahjong, a variation of mahjong. For brief, all of the word ma...
分类:其他好文   时间:2014-05-13 14:59:51    阅读次数:356
hdu1431素数回文
Problem Description xiaoou33对既是素数又是回文的数特别感兴趣。比如说151既是素数又是个回文。现在xiaoou333想要你帮助他找出某个范围内的素数回文数,请你写个程序找出 a 跟b 之间满足条件的数。(5 <= a < b <= 100,000,000); Input 这里有许多组数据,每组包括两组数据a跟b。 Output 对每一...
分类:其他好文   时间:2014-05-13 14:55:43    阅读次数:203
HDOJ 3339 In Action
最短路+01背包 In Action Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 3857    Accepted Submission(s): 1229 Problem Description ...
分类:其他好文   时间:2014-05-13 14:39:21    阅读次数:175
HDOJ1057 A New Growth Industry 【模拟】
A New Growth Industry Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 1197    Accepted Submission(s): 474 Problem Description A...
分类:其他好文   时间:2014-05-13 14:37:18    阅读次数:354
ZOJ3669:Japanese Mahjong I
Mahjong is a game of skill, strategy and calculation and involves a certain degree of chance. In this problem, we concentrate on Japanese Mahjong, a variation of mahjong. For brief, all of the word ma...
分类:其他好文   时间:2014-05-13 13:54:14    阅读次数:463
POJ2480 Longge's problem 欧拉函数的应用 && 积性函数
题意很简单,求sum(gcd(i,n))   1 这题看到后第一反应并没有里用积性函数的性质,不过也可以做,欣慰的是我反应还是比较快的 设f(n)=gcd(1,n)+gcd(2,n)+....+gcd(n-1,n) + gcd(n,n), 用g(n,i)表示满足 gcd(x,n)=i的 x的个数 (x小于n),则 f(n)=sum{i*g(n,i)}; 同时又利用 扩展欧几里德的性...
分类:其他好文   时间:2014-05-13 13:40:58    阅读次数:365
hdu 3415 单调队列
Max Sum of Max-K-sub-sequence Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5690    Accepted Submission(s): 2059 Problem Description ...
分类:其他好文   时间:2014-05-13 11:38:49    阅读次数:256
HDU3920:Clear All of Them I(状态压缩)
Problem Description Acmers have been the Earth Protector against the evil enemy for a long time, now it’s your turn to protect our home.   There are 2 * n enemies in the map. Your task is to clear a...
分类:其他好文   时间:2014-05-13 11:29:40    阅读次数:308
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