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RSS订阅原创 Codeforces Round #550 (Div. 3) F. Graph Without Long Directed Paths
Codeforces Round #550 (Div. 3) F. Graph Without Long Directed Paths原题链接：http://codeforces.com/contest/1144/problem/F题目：You are given a connected undirected graph consisting of n vertices and m edge...
2019-04-08 18:45:34
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原创 Codeforces Round 550(Div.3) E Median String —— 进制转换
Codeforces Round 550(Div.3) E Median String —— 进制转换原题链接：http://codeforces.com/contest/1144/problem/E题意给你一个k和两个保证长度均为k的字符串，求这两个字符串的“中间串”。即：给出“az”和“bf”这两个长度均为2的字符串，按字典序排，从小到大应有：“az”， “ba”， “bb”， “bc”...
2019-04-07 19:15:12
173
原创 cf Apple trees——递推记得想想矩阵快速幂
**cf Apple trees——递推要记得想想矩阵快速幂**先上原题：In the beginning God created the heaven and the earth, the next five days God created the light, the water, the sky, the land, the trees and the living creatur...
2019-04-03 23:44:50
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