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Intel Code Challenge Elimination Round (Div.1 + Div.2, combined) C. Destroying Array -- 逆向思维
原题中需要求解的是按照它给定的操作次序,即每次删掉一个数字求删掉后每个区间段的和的最大值是多少。 正面求解需要维护新形成的区间段,以及每段和,需要一些数据结构比如 map 和 set。 map<int, LL>interval2Sum来维护区间段(u->v),mulitset<LL>sum 来维护最 ...
分类:其他好文   时间:2016-10-02 11:05:33    阅读次数:339
[LeetCode #8] 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 ...
分类:其他好文   时间:2016-10-01 12:50:07    阅读次数:150
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 ...
分类:其他好文   时间:2016-09-29 07:50:15    阅读次数:190
8. 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 ...
分类:其他好文   时间:2016-09-15 01:02:12    阅读次数:166
http认证方式
HTTP请求报头: Authorization HTTP响应报头: WWW-Authenticate HTTP认证 基于 质询 /回应( challenge/response)的认证模式。 HTTP请求报头: Authorization HTTP响应报头: WWW-Authenticate HTTP ...
分类:Web程序   时间:2016-09-12 22:01:50    阅读次数:262
【LeetCode】8. 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 be ...
分类:其他好文   时间:2016-09-10 11:31:52    阅读次数:118
服务器CC攻击
CC攻击可以归为DDoS攻击的一种。他们之间的原理都是一样的,即发送大量的请求数据来导致服务器拒绝服务,是一种连接攻击。CC攻击又可分为代理CC攻击,和肉鸡CC攻击。代理CC攻击是黑客借助代理服务器生成指向受害主机的合法网页请求,实现DDoS,和伪装就叫:cc(Challenge Collapsar ...
分类:其他好文   时间:2016-09-09 15:06:49    阅读次数:156
WeChall_Training: Programming 1 (Training, Coding)
When you visit this link you receive a message.Submit the same message back to http://www.wechall.net/challenge/training/programming1/index.php?answer ...
分类:其他好文   时间:2016-09-08 23:12:13    阅读次数:764
WeChall_Training: ASCII (Training, Encoding)
In a computer, you can only work with numbers.In this challenge you have to decode the following message, which is in ASCII.84, 104, 101, 32, 115, 111 ...
分类:其他好文   时间:2016-09-04 17:33:35    阅读次数:299
WeChall_Training: Crypto - Caesar I (Crypto, Training)
As on most challenge sites, there are some beginner cryptos, and often you get started with the good old caesar cipher.I welcome you to the WeChall st ...
分类:其他好文   时间:2016-09-04 17:14:00    阅读次数:301
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