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问题 A: Anagram 题目描述 Orz has two strings of the same length: A and B. Now she wants to transform A into an anagram of B (which means, a rearrangement of 阅读全文
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问题 J: Unhappy Hacking I 题目描述 Sig has built his own keyboard. Designed for ultimate simplicity, this keyboard only has 3 keys on it: the 0 key, the 1 k 阅读全文
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问题 D: Iroha's Obsession 题目描述 Iroha is very particular about numbers. There are K digits that she dislikes: D1,D2,…,DK. She is shopping, and now paying 阅读全文
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5582: Box and Ball 题目描述 We have N boxes, numbered 1 through N. At first, box 1 contains one red ball, and each of the other boxes contains one white b 阅读全文
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问题 J: Frosting on the Cake 题目描述 Iskander the Baker is decorating a huge cake, covering the rectangular surface of the cake with frosting.For this purp 阅读全文
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问题 F: Escape Room 题目描述 As you know, escape rooms became very popular since they allow you to play the role of a video game hero. One such room has the 阅读全文
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问题 L: Robots 题目描述 You’re the leading designer of a complex robot, that will explore human unreachable locations. Your job is to design a robot that wi 阅读全文
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5780: 最强阵容 题目描述 拿着新换来的英雄卡，小李满心欢喜的准备和同学们PK一下。他们的游戏规则非常简单，双方把自己的牌绕成一圈，然后指定一个起点，从该张牌开始顺时针方向往后取，谁取出的字符串字典序更小（从左到右开始比较，碰到第一个不一样的字符进行比较，比较规则为a<b<…<z）谁将获得胜利。 阅读全文