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题目1622: [Usaco2008 Open]Word Power 名字的能量Time Limit:5 SecMemory Limit:64 MBSubmit:349Solved:168[Submit][Status]Description约翰想要计算他那N(1≤N≤1000)只奶牛的名字的能量.... 阅读全文
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题目1621: [Usaco2008 Open]Roads Around The Farm分岔路口Time Limit:5 SecMemory Limit:64 MBSubmit:561Solved:407[Submit][Status]Description约翰的N(1≤N≤1,000,000,0... 阅读全文
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题目1620: [Usaco2008 Nov]Time Management 时间管理Time Limit:5 SecMemory Limit:64 MBSubmit:488Solved:296[Submit][Status]DescriptionEver the maturing business... 阅读全文
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题目1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场Time Limit:5 SecMemory Limit:64 MBSubmit:491Solved:218[Submit][Status]DescriptionThe farm has many hills ... 阅读全文
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题目1618: [Usaco2008 Nov]Buying Hay 购买干草Time Limit:5 SecMemory Limit:64 MBSubmit:679Solved:347[Submit][Status]Description约翰的干草库存已经告罄,他打算为奶牛们采购日(1≤日≤5000... 阅读全文
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题目2301: [HAOI2011]Problem bTime Limit:50 SecMemory Limit:256 MBDescription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。In... 阅读全文
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题目1565: [NOI2009]植物大战僵尸Time Limit:10 SecMemory Limit:64 MBDescriptionInputOutput仅包含一个整数,表示可以获得的最大能源收入。注意,你也可以选择不进行任何攻击,这样能源收入为0。Sample Input3 210 020 ... 阅读全文
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题目1617: [Usaco2008 Mar]River Crossing渡河问题Time Limit:5 SecMemory Limit:64 MBDescriptionFarmer John以及他的N(1 #include#include#include#include#include#incl... 阅读全文
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题目2820: YY的GCDTime Limit:10 SecMemory Limit:512 MBDescription神犇YY虐完数论后给傻×kAc出了一题给定N, M,求1#include#include#include#include#include#include#includeusing... 阅读全文
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/*Author:WNJXYK*/#include#include#include#include#include#include#include#includeusing namespace std;#define LL long long#define Inf 2147483647#define... 阅读全文
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题目2818: GcdTime Limit:10 SecMemory Limit:256 MBDescription给定整数N,求1#include#include#include#include#include#include#includeusing namespace std;#define ... 阅读全文
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题目1615: [Usaco2008 Mar]The Loathesome Hay Baler麻烦的干草打包机Time Limit:5 SecMemory Limit:64 MBDescriptionFarmer John新买的干草打包机的内部结构大概算世界上最混乱的了,它不象普通的机器一样有明确的... 阅读全文
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题目1614: [Usaco2007 Jan]Telephone Lines架设电话线Time Limit:5 SecMemory Limit:64 MBDescriptionFarmer John打算将电话线引到自己的农场,但电信公司并不打算为他提供免费服务。于是,FJ必须为此向电信公司支付一定的... 阅读全文
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题目1613: [Usaco2007 Jan]Running贝茜的晨练计划Time Limit:5 SecMemory Limit:64 MBDescription奶牛们打算通过锻炼来培养自己的运动细胞,作为其中的一员,贝茜选择的运动方式是每天进行N(1 #include#include#inclu... 阅读全文
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题目1612: [Usaco2008 Jan]Cow Contest奶牛的比赛Time Limit:5 SecMemory Limit:64 MBDescriptionFJ的N(1 #include#include#include#include#include#includeusing names... 阅读全文