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题目描述 四象树是每个内结点均有4个子结点的特殊四叉树，它可用于描述平面上黑白图像。平面上的黑白图像是32行×32列的正方形，每个格子称为1个象素，是最小的图像单位。正方形图像可分成四个相等的小正方形，可按直角坐标系四个象限的顺序分别编号1，2，3，4，分别对应于四象树的四个子结点。这样，32行×3 阅读全文
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Ranking the Cows Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 3301 Accepted: 1511 Description Each of Farmer John's N cows (1 ≤ N ≤ 1,00 阅读全文
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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 o 阅读全文
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Max Sum Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 287192 Accepted Submission(s): 68202 Prob 阅读全文
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Color the ball Time Limit: 9000/3000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 26275 Accepted Submission(s): 127 阅读全文
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水果 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9855 Accepted Submission(s): 3934 Problem Des 阅读全文
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D. Divide by three, multiply by two time limit per test 1 second memory limit per test 256 megabytes input:standard input output:standard output input 阅读全文
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Recently, Shua Shua had a big quarrel with his GF. He is so upset that he decides to take a trip to some other city to avoid meeting her. He will trav 阅读全文
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PenguinQQ是中国最大、最具影响力的SNS（Social Networking Services）网站，以实名制为基础，为用户提供日志、群、即时通讯、相册、集市等丰富强大的互联网功能体验，满足用户对社交、资讯、娱乐、交易等多方面的需求。 小Q是PenguinQQ网站的管理员，他最近在进行一项有 阅读全文