青蛙的约会 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 108538 Accepted: 21756 Description 两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直到碰面为止。可是它们出…
Sliding Window Time Limit: 12000MS Memory Limit: 65536K Total Submissions: 55520 Accepted: 15971 Case Time Limit: 5000MS Description An array of size n ≤ 106 is given to you. …
Distance Queries Time Limit: 2000MS Memory Limit: 30000K Total Submissions: 12716 Accepted: 4501 Case Time Limit: 1000MS Description Farmer John's cows refused to run in his m…
反正切函数的应用 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 15514 Accepted: 5548 Description 反正切函数可展开成无穷级数，有如下公式 (其中0 <= x <= 1) 公式(1) 使用反正切函数计算PI是一种常用的方法。例如，最简单…
Biorhythms Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 130834 Accepted: 41704 Description 人生来就有三个生理周期，分别为体力、感情和智力周期，它们的周期长度为23天、28天和33天。每一个周期中有一天是高峰。在高峰这天，人会在相应…
Dungeon Master Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 27258 Accepted: 10689 Description You are trapped in a 3D dungeon and need to find the quickest way o…
棋盘问题 Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 36999 Accepted: 18227 Description 在一个给定形状的棋盘（形状可能是不规则的）上面摆放棋子，棋子没有区别。要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列，请编程求解对于给定形状和大…
A Knight's Journey Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 41945 Accepted: 14272 Description Background The knight is getting bored of seeing the same black…
Ultra-QuickSort Time Limit: 7000MS Memory Limit: 65536K Total Submissions: 56263 Accepted: 20773 Description In this problem, you have to analyze a particular sorting algorith…
Buy Tickets Time Limit: 4000MS Memory Limit: 65536K Total Submissions: 18673 Accepted: 9275 Description Railway tickets were difficult to buy around the Lunar New Year in Chin…