题意:给定一个环形字符串,让他把它分成k份,使得最大的字典序 最小. 思路:二分答案,首先很明显答案所有可能是 n*n种  排序可以先求出最长公共前缀,这样比较就只需要比较公共前缀的下一位就能比较出两种答案的字典序大小,这里公共前缀我用 (2*n)*(2*n) DP 求出 .(也可用后缀数组).接下来就是判断了: 这里二分出来的答案就是字典序的上界,(对于没一个位置作为起点,长度越长字典序越大)那么对于当前答案每个位置都可以求出一个能向后跳的最大值(根据如果以这个点做一个串的起点那么字典序要小于…

Problem Description There is an old country and the king fell in love with a devil. The devil always asks the king to do some crazy things. Although the king used to be wise and beloved by his people. Now he is just like a boy in love and can’t refus…

传送阵:http://acm.hdu.edu.cn/showproblem.php?pid=4898 题目大意:一个首尾相连的字符串,将其分为k个子串,使得最大的字串最小 将所有子串排序,输出第k小即可 对于有循环节的串,用抽屉原理解决即可 #include<iostream> #include<cstdio> #include<cstring> #include<cstdlib> #include<algorithm> using namesp…

The Revenge of the Princess’ Knight Problem Description There is an old country and the king fell in love with a devil. The devil always asks the king to do some crazy things. Although the king used to be wise and beloved by his people. Now he is jus…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4897 Problem Description There is an old country and the king fell in love with a devil. The devil always asks the king to do some crazy things. Although the king used to be wise and beloved by his peopl…

Harry Potter and the Forbidden Forest Time Limit: 5000/3000 MS (Java/Others)    Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 2089    Accepted Submission(s): 702 Problem Description Harry Potter notices some Death Eaters try to slip…

Ignatius and the Princess III Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 15942    Accepted Submission(s): 11245 Problem Description "Well, it seems the first problem is too easy. I will let…

Ignatius and the Princess IV  先搬中文 Descriptions:   给你n个数字,你需要找出出现至少(n+1)/2次的数字 现在需要你找出这个数字是多少? Input 本题包含多组数据,请处理到EOF: 每组数据包含两行. 第一行一个数字N(1<=N<=999999) ,保证N为奇数. 第二行为N个用空格隔开的整数. Output 对于每组数据,输出一行,表示要求找到的那个数 Sample Input 5 1 3 2 3 3 11 1 1 1 1 1 5 5…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4900 Problem Description There is an old country and the king fell in love with a devil. The devil always asks the king to do some crazy things. Although the king used to be wise and beloved by his peopl…

转载请注明出处:http://blog.csdn.net/u012860063 题目链接:http://acm.hdu.edu.cn/showproblem.php? pid=1027 Ignatius and the Princess II Problem Description Now our hero finds the door to the BEelzebub feng5166. He opens the door and finds feng5166 is about to kill…