1623:Sherlock and His Girlfriend 时间限制: 1000 ms 内存限制: 524288 KB [题目描述] 原题来自:Codeforces Round #400 B. Sherlock 有了一个新女友(这太不像他了!).情人节到了,他想送给女友一些珠宝当做礼物. 他买了 n 件珠宝.第 i 件的价值是 i+1.那就是说,珠宝的价值分别为 2,3,4,⋯,n+1. Watson 挑战 Sherlock,让他给这些珠宝染色,使得一件珠宝的价格是另一件的…
[题目描述] 原题来自:Codeforces Round #400 B. Sherlock 有了一个新女友(这太不像他了!).情人节到了,他想送给女友一些珠宝当做礼物. 他买了 n 件珠宝.第 i 件的价值是 i+1.那就是说,珠宝的价值分别为 2,3,4,⋯,n+1. Watson 挑战 Sherlock,让他给这些珠宝染色,使得一件珠宝的价格是另一件的质因子时,两件珠宝的颜色不同.并且,Watson 要求他最小化颜色的使用数. 请帮助 Sherlock 完成这个简单的任务. [输入] 只有一…
2016暑假多校联合---To My Girlfriend Problem Description Dear Guo I never forget the moment I met with you.You carefully asked me: "I have a very difficult problem. Can you teach me?".I replied with a smile, "of course"."I have n items,…
传送门:hdu 5800 To My Girlfriend 题意:给定n个物品,其中i,j必选,l,m必不选,问组成体积为s的方法一共有多少种 思路:定义dp[i][j][s1][s2],表示前i种物品能够构成的体积为j,其中有s1种定为必选,s2种定为不必选;因为递推到第i层时,只与第i-1层有关,所以把第一维降到2来省内存.然后就是dp[i][j][s1][s2]=dp[i-1][j][s1][s2]+dp[i-1][j][s1][s2-1]+dp[i-1][j-a[i]][s1-1][s2…
http://www.quora.com/What-am-I-missing-out-in-life-if-I-dont-have-a-girlfriend/answer/Kelly-Erickson# Depends entirely on the girlfriend. Some things you might be missing out on: Soft smells from her hair, her skin, her extra set of clothes that she…
题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5800 To My Girlfriend Time Limit: 2000/2000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others) 问题描述 Dear Guo I never forget the moment I met with you.You carefully asked me: "I have a very diffic…
