题目链接: Lightoj  1044 - Palindrome Partitioning 题目描述: 给一个字符串,问至少分割多少次?分割出来的子串都是回文串. 解题思路: 先把给定串的所有子串是不是回文串处理出来,然后用dp[i] 表示 从起点到串i的位置的最少分割次数,然后结合处理出来的回文串转移一下即可! 还是好蠢哦!自己竟然感觉是一个区间DP,但是n又那么大,完全不是区间DP的作风啊! #include <cmath> #include <cstdio> #include…

Description A palindrome partition is the partitioning of a string such that each separate substring is a palindrome. For example, the string "ABACABA" could be partitioned in several different ways, such as {"A","B","A&…

Atcoder Yet Another Palindrome Partitioning 思路: 一个字符串满足条件的情况是奇数字母个数小于等于1,也就是异或起来是1<<j(0<=j<=25)或者是0 记mark是异或起来的值 状态转移: dp[mark]=dp[mark]+1; dp[mark]=min(dp[mark^(1<<j)]+1,dp[mark]);(0<=j<=25) 注意dp[0]被转移后可能会变成1,但是由它转移的需要dp[0]=0,所以每次…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa",…

Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab",Return [ ["aa","b"], ["a","a","…

题目链接 You are given a string s containing lowercase letters and an integer k. You need to : First, change some characters of s to other lowercase English letters. Then divide s into k non-empty disjoint substrings such that each substring is palindrom…

题目链接 Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. Example: Input: "aab" Output: 1 Explanation: The palindrome partitioning ["aa&…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab", Return 1 since the palindrome partitioning ["aa"…

Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab",Return [ ["aa","b"], ["a","a","…

参考:http://www.cppblog.com/wicbnu/archive/2013/03/18/198565.html 我太喜欢用dfs和回溯法了,但是这些暴力的方法加上剪枝之后复杂度依然是很高,显然不能达到题目的要求. 这个时候应该考虑动态规划,并且要复杂度尽量接近O(n^2)的算法. 下面这个方法更加简洁:自长到短找到回文串后,往后dfs,并记录递归深度表示并更新最小划分数.http://fisherlei.blogspot.com/2013/03/leetcode-palindro…

Given a string s, cut s into some substrings such that every substring is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. Given s = "aab", Return 1 since the palindrome partitioning ["aa", "b"…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa",…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa",…

题目: Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab", Return 1 since the palindrome partitioning ["aa&q…

题目: Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab", Return [ ["aa","b"], ["a","a",&…

Palindrome Partitioning II Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome pa…

题目: Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab", Return 1 since the palindrome partitioning ["aa&q…

131. Palindrome Partitioning Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab",Return [ ["aa","b"], ["…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa",…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa",…

题目: Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa&qu…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. For example, given s = "aab",Return 1 since the palindrome partitioning ["aa",…

Question Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab",Return [ ["aa","b"], ["a","a&quo…

[称号] Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab", Return [ ["aa","b"], ["a","a",…

1 Palindrome Partitioning 问题来源:Palindrome Partitioning 该问题简单来说就是给定一个字符串,将字符串分成多个部分,满足每一部分都是回文串,请输出所有可能的情况. 该问题的难度比较大,很可能第一次遇到没有思路,这很正常.下面我们一点点分析,逐步理清思路.先不考虑所有的情况,针对一个符合条件的划分,每一部分都是一个回文子串,而且各部分的长度不固定.也即每一部分都是原始字符串的一个子串,且满足回文条件.所有的划分都满足上述条件,所以这就启发我们首先判…

Palindrome Partitioning II 这个题意思挺好理解,提供一个字符串s,将s分割成多个子串,这些字串都是回文,要求输出分割的最小次数. Example:Input: "aab"Output: 1Explanation: The palindrome partitioning ["aa","b"] could be produced using 1 cut. 状态:这个题的状态也非常好理解,dp[i]表示将s[0..i]分割成回…

Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. Example: Input: "aab" Output: 1 Explanation: The palindrome partitioning ["aa"…

131. Palindrome Partitioning substr使用的是坐标值,不使用.begin()..end()这种迭代器 使用dfs,类似于subsets的题,每次判断要不要加入这个数 start每次是起始的位置,判断当前位置到起始位置是不是回文 class Solution { public: vector<vector<string>> partition(string s) { vector<vector<string> > result;…

78. Subsets Given a set of distinct integers, nums, return all possible subsets. Note: The solution set must not contain duplicate subsets. For example, If nums = [,,], a solution is: [ [], [], [], [,,], [,], [,], [,], [] ] class Solution { public: v…

Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. Example Given s = "aab", return: [ ["aa","b"], ["a","a","b&q…