B. Complete the Word time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder loves to read the dictionary. He thinks that a word is nice if there exists a substring (contiguous segmen…
Codeforces Round #372 (Div. 2) 不知不觉自己怎么变的这么水了,几百年前做A.B的水平,现在依旧停留在A.B水平.甚至B题还不会做.难道是带着一种功利性的态度患得患失?总共才打的几场 CF 节节掉分.学了快一年了成了个水货. 废话就不多说了,来看这次的这两题吧.很多CF的题是不想写博客的,如果题目质量很好的话我倒是愿意留在我的博客里: A. Crazy Computer time limit per test 2 seconds memory limit per te…
B. Complete the Word time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder loves to read the dictionary. He thinks that a word is nice if there exists a substring (contiguous segmen…
ZS the Coder loves to read the dictionary. He thinks that a word is nice if there exists asubstring (contiguous segment of letters) of it of length 26 where each letter of English alphabet appears exactly once. In particular, if the string has length…
ZS the Coder loves to read the dictionary. He thinks that a word is nice if there exists a substring (contiguous segment of letters) of it of length 26 where each letter of English alphabet appears exactly once. In particular, if the string has lengt…
Complete The Graph 题解: 比较特殊的dij的题目. dis[x][y] 代表的是用了x条特殊边, y点的距离是多少. 然后我们通过dij更新dis数组. 然后在跑的时候,把特殊边都先当做1在跑,并且经过特殊边的时候,记得将x更新. 然后如果dis[0][t] < L 则代表不用特殊边也会小于L.所以无论是特殊的边答案是多少,dis[0][t]<L也是固定的. 然后我们不断检查dis[c][t] (for c 1 to N) 是不是 <= L . 找到对应的dis[c]…