Subway_18的博客

问题 D: Ananagrams 时间限制: 1 Sec 内存限制: 128 MB 题目描述 Most crossword puzzle fans are used to anagrams — groups of words with the same letters in different orders — for example OPTS, SPOT, STOP, POTS and POST. Some words however do not have this attribute, no mat

问题 B: Broken Keyboard 时间限制: 1 Sec 内存限制: 128 MB 题目描述 You’re typing a long text with a broken keyboard. Well it’s not so badly broken. The only problem with the keyboard is that sometimes the “home” key or the “end” key gets automatically pressed (internall

14383: Prison 时间限制: 1 Sec 内存限制: 128 MB 题目描述 We have N ID cards, and there are M gates. We can pass the i-th gate if we have one of the following ID cards: the Li-th, (Li+1)-th, …, and Ri-th ID cards. How many of the ID cards allow us to pass all the gates

1127: Password Passes//水题 时间限制: 1 Sec 内存限制: 64 MB 题目描述 Student at ACME University are required to change passwords to their email accounts every year. Each new password must satisfy the following: The password must contain only alphanumeric characters (c