摘要： Long long ago, there lived two rabbits Tom and Jerry in the forest. On a sunny afternoon, they planned to play a game with some stones. There were n s 阅读全文

摘要： 推荐博客： https://blog.csdn.net/dingchenxixi/article/details/52459001 抽屉原理的一种更一般的表述为：“把多于kn个东西任意分放进n个空抽屉（k是正整数），那么一定有一个抽屉中放进了至少k+1个东西。 利用上述原理容易证明：“任意7个整数中 阅读全文

摘要： Here is a famous story in Chinese history. That was about 2300 years ago. General Tian Ji was a high official in the country Qi. He likes to play hors 阅读全文

摘要： Let us define a regular brackets sequence in the following way: 1. Empty sequence is a regular sequence. 2. If S is a regular sequence, then (S) and [ 阅读全文

摘要： Partychen like to do mathematical problems. One day, when he was doing on a least common multiple(LCM) problem, he suddenly thought of a very interest 阅读全文

摘要： Diablo III is an action role-playing video game. A few days ago, Reaper of Souls (ROS), the new expansion of Diablo III, has been released! On hearing 阅读全文

摘要： Description In a shop each kind of product has a price. For example, the price of a flower is 2 ICU (Informatics Currency Units) and the price of a va 阅读全文

摘要： There is a straight highway with villages alongside the highway. The highway is represented as an integer axis, and the position of each village is id 阅读全文

摘要： Problem 1538 - B - Stones II Time Limit: 1000MS Memory Limit: 65536KB Total Submit: 428 Accepted: 64 Special Judge: No Description Xiaoming took the f 阅读全文

摘要： 链接：https://www.nowcoder.com/acm/contest/111/A来源：牛客网 作为故事主角的托米是一名老师。 一天，他正在为解析算术表达式的课程准备课件。 在课程的第一部分，他只想专注于解析括号。 他为他的学生发明了一个有趣的正确括号序列的几何表示，如下图所示: 几何表示的 阅读全文