摘要：
1、五种数据结构 stinrg、list、set、hash、zset（有序列表） 2、有一些通用操作 DEL、TYPE、RENAME 结构类型： 结构存储的值 结构的读写能力 string： 字符串、整数、浮点数 对整个字符串或者字符串的其中一部分执行操作；对整数和浮点数执行自增或者自减操作 lis 阅读全文
摘要：
To seek candies for Maomao, Dudu comes to a maze. There are nn rooms numbered from 11 to nn and mmundirected roads. There are two kinds of rooms in th 阅读全文
摘要：
You are given a number of case-sensitive strings of alphabetic characters, find the largest string X, such that either X, or its inverse can be found 阅读全文
摘要：
You may have wondered why most extraterrestrial life forms resemble humans, differing by superficial traits such as height, colour, wrinkles, ears, ey 阅读全文
摘要：
The repetition number of a string is defined as the maximum number R such that the string can be partitioned into R same consecutive substrings. For e 阅读全文
摘要：
题面就不弄了 题意：给你一个串，让你求出补充最少的字符形成的回文串 思路:思路很好想，就是对一个串，找其最后一个字符（第一个也行）和原串的反串的最长公共前缀，这样就求出了该串中的已有最长回文，然后把剩下部分 倒序添加到原串上即可。 也就是我们可以固定一个位置，即使反串的第一个单词（原串最后一个），然 阅读全文
摘要：
Given a sequence, {A1, A2, ..., An} which is guaranteed A1 > A2, ..., An, you are to cut it into three sub-sequences and reverse them separately to fo 阅读全文
摘要：
Problem Description You have a directed weighted graph with n vertexes and m edges. The value of a path is the sum of the weight of the edges you pass 阅读全文
摘要：
链接：http://codeforces.com/problemset/problem/632/C 思路：思路很快想到了，但是被sort坑了，对于sort的自定义比较函数，记住 对于相等的值一定要返回flase 附上别的大佬的验证：https://blog.csdn.net/xhu_eternalc 阅读全文
摘要：
BaoBao has just found a rooted tree with n vertices and (n-1) weighted edges in his backyard. Among the vertices, m of them are red, while the others 阅读全文