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题目链接:http://codeforces.com/gym/101158/attachments 阅读全文
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A New Change Problem Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 533 Accepted Submission(s): 阅读全文
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Wolf and Rabbit Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9060 Accepted Submission(s): 4612 阅读全文
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The Embarrassed Cryptographer Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 15069 Accepted: 4132 Description The young and very promising 阅读全文
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Cow Sorting Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 7587 Accepted: 2982 Description Farmer John's N (1 ≤ N ≤ 10,000) cows are lined 阅读全文
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计数排序就是利用空间换时间,时间复杂度O(n+k) n是元素个数,k是最大数的个数; 统计每个数比他小的有多少,比如比a[i]小的有x个,那么a[i]应该排在x+1的位置 代码: 阅读全文
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EXTENDED LIGHTS OUT Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 11815 Accepted: 7577 Description In an extended version of the game Lig 阅读全文
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2038: [2009国家集训队]小Z的袜子(hose) Description 作为一个生活散漫的人,小Z每天早上都要耗费很久从一堆五颜六色的袜子中找出一双来穿。终于有一天,小Z再也无法忍受这恼人的找袜子过程,于是他决定听天由命…… 具体来说,小Z把这N只袜子从1到N编号,然后从编号L到R(L 尽 阅读全文
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2301: [HAOI2011]Problem b Description 对于给出的n个询问,每次求有多少个数对(x,y),满足a≤x≤b,c≤y≤d,且gcd(x,y) = k,gcd(x,y)函数为x和y的最大公约数。 Input 第一行一个整数n,接下来n行每行五个整数,分别表示a、b、c、 阅读全文
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C. The Intriguing Obsession time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output — This is not 阅读全文