bzoj3034: Heaven Cow与God Bull】的更多相关文章

Description __int64 ago,there's a heaven cow called sjy...A god bull named wzc fell in love with her...As an OI & MOer,wzc gave sjy a quesiton... 给定一个整数n,求一个整数m,满足m<=n,并且m/phi(m)的值最大.注:phi(m)代表m的欧拉函数,即不大于m且与m互质的数的个数. Input 第一行是一个整数T,表示该测试点有T组数据.接下来…
题目 Description __int64 ago,there's a heaven cow called sjy... A god bull named wzc fell in love with her... As an OI & MOer,wzc gave sjy a quesiton... 给定一个整数n,求一个整数m,满足m<=n,并且m/phi(m)的值最大. 注:phi(m)代表m的欧拉函数,即不大于m且与m互质的数的个数. Input 第一行是一个整数T,表示该测试点有T组…
描述 Description 给定一个整数n,求一个整数m,满足m<=n,并且m/phi(m)的值最大.注:phi(m)代表m的欧拉函数,即不大于m且与m互质的数的个数. 题解:m/phi(m) 很容易化成 连积(p/(p-1))  p|m所以就很简单了,将最小的质数乘起来,直到>n,输出前一个.因为保证最小所以只乘一次,因为p/(p-1)单调减,所以从小的开始选.高精度写错搞了好久,然后有卡了几次时才过了代码: #include<cstdio> #include<cstdl…
「Poetize3」Heaven Cow与God Bull From wwwwodddd     背景 Background __int64 ago,there's a heaven cow called sjy...A god bull named wzc fell in love with her...As an OI & MOer,wzc gave sjy a quesiton...     描述 Description 给定一个整数n,求一个整数m,满足m<=n,并且m/phi(m)…
Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43…
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package cn.edu.xidian.sselab.hashtable; import java.util.HashMap;import java.util.Map;import java.util.Set; /** *  * @author zhiyong wang  * title: Bull And Cows * content: * ou are playing the following Bulls and Cows game with your friend: You writ…
传送门 Catch That Cow Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 80273   Accepted: 25290 Description Farmer John has been informed of the location of a fugitive cow and wants to catch her immediately. He starts at a point N (0 ≤ N ≤ 10…
SB贪心,一开始还想着用二分,看了眼黄学长的blog,发现自己SB了... 最小道路=已选取的奶牛/道路总数. #include <iostream> #include <cstdio> #include <algorithm> using namespace std; ]; int n,m,d,l,ans; int main() { scanf("%d%d%d%d",&n,&m,&d,&l); ;i<=n;i+…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2838 Cow Sorting Problem Description Sherlock's N (1 ≤ N ≤ 100,000) cows are lined up to be milked in the evening. Each cow has a unique "grumpiness" level in the range 1...100,000. Since grumpy cow…