hdu3613 Best Reward manacher+贪心+前缀和

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hdu3613 Best Reward manacher+贪心+前缀和

After an uphill battle, General Li won a great victory. Now the head of state decide to reward him with honor and treasures for his great exploit. One of these treasures is a necklace made up of 26 different kinds of gemstones, and the length of the…

HDU3613 Best Reward —— Manacher算法 / 扩展KMP + 枚举

题目链接:https://vjudge.net/problem/HDU-3613 Best Reward Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 3104 Accepted Submission(s): 1277 Problem Description After an uphill battle, General Li w…

hdu3613 Best Reward 扩展kmp or O(n)求最大回文子串

/** 题目:hdu3613 Best Reward 链接:http://acm.hdu.edu.cn/showproblem.php?pid=3613 题意:有一个字符串,把他切成两部分. 如果这部分是回文串,那么他的值为所有字母的权值和.否则这部分值为0:这两部分的值和为该切法的权值. 求最大的切法的权值. 思路: 如果能够判断[0,i],[i,n-1]是一个回文串(0<=i<n)那么就可以枚举i,计算切割位置为i时候两部分的贡献和. 取最大的. 利用O(n)的算法求最长回文子串的做法获得…

【贪心+前缀】C. Fountains

http://codeforces.com/contest/799/problem/C [题意] 有n做花园,有人有c个硬币,d个钻石 (2 ≤ n ≤ 100 000, 0 ≤ c, d ≤ 100 000) ,每一个花园用三个维度描述(a,b,c),分别是美丽度,所花钱币个数,钱币种类,当然,钱币之间不能兑换,该人必须要建筑两座花园,如果可以,输出两座花园总的美丽度,否则输出0: [思路] 首先,有三种分类: 两座花园一座用钻石,一座用硬币两座花园都用钻石两座花园都用硬币注意两座花园只…

kuangbin专题十六 KMP&&扩展KMP HDU3613 Best Reward(前缀和+manacher or ekmp)

After an uphill battle, General Li won a great victory. Now the head of state decide to reward him with honor and treasures for his great exploit. One of these treasures is a necklace made up of 26 different kinds of gemstones, and the length of the…

HDU-3613-Best Reward(Manacher, 前缀和)

链接: https://vjudge.net/problem/HDU-3613 题意: After an uphill battle, General Li won a great victory. Now the head of state decide to reward him with honor and treasures for his great exploit. One of these treasures is a necklace made up of 26 differen…