CC攻击(Challenge Collapsar)是DDOS(分布式拒绝服务)的一种,也是一种常见的网站攻击方法,攻击者通过代理服务器或者肉鸡向向受害主机不停地发大量数据包,造成对方服务器资源耗尽,一直到宕机崩溃。 CC攻击的攻击技术含量低,利用工具和一些IP代理,一个初、中级的电脑水平的用户就能够...
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Web程序 时间:
2015-06-07 09:25:11
阅读次数:
122
String to Integer (atoi)
Implement atoi to convert a string to an integer.
Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask you...
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编程语言 时间:
2015-06-07 06:15:52
阅读次数:
181
1 题目:Implementatoito convert a string to an integer.Hint:Carefully consider all possible input cases. If you want a challenge, please do not see below...
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其他好文 时间:
2015-06-06 16:18:52
阅读次数:
89
Implement atoi to convert a string to an integer.
Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible input case...
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其他好文 时间:
2015-06-02 09:25:09
阅读次数:
115
题目大意:给定n个物品,每个物品有一个体积,对于所有的1≤i≤n,1≤j≤m1\leq i\leq n,1\leq j\leq m输出在不使用第ii个物品的情况下装满大小为jj的背包的方案数我这傻逼居然真的去写了分治背包……
第i个物品存在的时间为[1,i?1][1,i-1]和[i+1,n][i+1,n]两个区间
然后分治……
时间复杂度O(n2logn)O(n^2logn)
黄学长我仰慕您...
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其他好文 时间:
2015-05-27 22:58:06
阅读次数:
180
String to Integer (atoi)
题目:
Implement atoi to convert a string to an integer.
Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourse...
分类:
其他好文 时间:
2015-05-27 15:50:24
阅读次数:
134
Problem DescriptionNow I think you have got an AC in Ignatius.L's "Max Sum" problem. To be a brave ACMer, we always challenge ourselves to more diffic...
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其他好文 时间:
2015-05-22 20:56:22
阅读次数:
123
Implement atoi to convert a string to an integer.
Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible input ca...
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其他好文 时间:
2015-05-20 11:21:31
阅读次数:
157
随便瞎写,其实没做出多少题:Chef and Cake题目大概是用输入的数生成 一个数组并且生成出q个【X,Y】的询问,数组长度N 表示 I in【X,X+K-1] 范围 min(A[i]);A[i] 生成的数组。询问X,Y的区间最小值 =Mi年(dp[x],dp[y-k+1]);求出每个dp;这里...
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其他好文 时间:
2015-05-19 20:50:55
阅读次数:
231
Chef and new recipe
Rupsa recently started to intern under Chef. He gave her N type of ingredients of varying quantity A1, A2, ..., AN respectively to store it. But as she is
lazy to arrange th...
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其他好文 时间:
2015-05-19 16:46:41
阅读次数:
172