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Game of Credit Cards
After the fourth season Sherlock and Moriary have realized the whole foolishness of the battle between them and decided to continue their competitions in peaceful game of Credit Cards. Rules of this game are simple: each player bring his favourite n-dig一本通1623Sherlock and His Girlfriend
1623:Sherlock and His Girlfriend 时间限制: 1000 ms 内存限制: 524288 KB 【题目描述】 原题来自:Codeforces Round #400 B. Sherlock 有了一个新女友(这太不像他了!)。情人节到了,他想送给女友一些珠宝当做礼物。 他买了 n 件珠宝。第 i 件的价值是 i+1。那就是说用户与用户组之用户篇
用户与用户组 1.Linux 系统中有三种角色:所有者(用户),用户组与其他人,一张图可以说明用户与用户组的关系。 如图,某公司相当于一个用户组,该用户组下有A,B两个用户,用户拥有各自的私密空间和公用空间,不是该用户组下的就是其他人,其他人无法访问用户组下的内容。 2.GID 与 UID UID 可以理