[Codechef]2014 November Challenge
Fombinatorial 一开始以为分解模会跪然后不会做。。。经过jcvb的教导之后就写了一下发现T了然后加了些鬼畜的小优化终于过了。。。
Chef and Churu 暴力分块。。。卡着时限过的。。。修改[tex]O(size)[/tex]查询[tex]O(n/size*\log n)[/tex]。。。
Sereja and Permutations 枚举删掉第一个后形成哪个然后暴力[tex]O(n^2\log n)[/tex]判重居然A了。。。
Sereja and Order 鬼畜贪心。。。假如和不一样大就把短的那个不停的拉长
。。。然后先塞两边再堵中间。。。放不下就留着最后放。。。然后不知怎么回事就A了。。。
challenge 不知道出题人在想什么。。。直接弃疗
2022年9月08日 20:36
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