这道题是拆分回文串系列的第三道,之前的两道分别是Palindrome Partitioning II和Palindrome Partitioning,相对于前两道题来说,这道题更加的复杂一些,这里给了一个只有小写字母的字符串s和一个正整数k,说是首先改变s中的一些字母,然后将s分割为k个回文串,问最少需要改变多少个字母。再来分析一下题目中给的例子,比...
解法: 由Leetcode_132. Palindrome Partitioning II解法,这道题可以有一个比较清晰的思路。 动态规划:dp[idx][k]表示将s[idx : s.size())这个子串划分为k个非空回文子串最少需要改变的字符数。 递归关系:dp[0][k] = min( f(0,idx-1) + dp[idx][k-1]), for idx in [0, s.size()-1], 其...
0 257 【leetcode】1278. Palindrome Partitioning III 2019-12-07 08:27 −题目如下: You are given a string s containing lowercase letters and an integer k. You need to : First, change some characters of s&nb... seyjs 0 462 LeetCode 1216. Valid Palindrome III ...
Palindrome Partitioning III 2019-12-07 08:27 − 题目如下: You are given a string s containing lowercase letters and an integer k. You need to : First, change some characters of s&n... seyjs 0 462 @codeforces - 932G@ Palindrome Partition 2019-12-11 19:00 − [toc] --- ...
Check if a number is Palindrome in C++ Valid Palindrome III in C++ Palindrome Partitioning II in C++ Largest Palindrome Product in C++ Palindrome Partitioning III in C++ Palindrome Permutation II in C++Kickstart Your Career Get certified by completing the course Get Started Print...
Return the minimal number of characters that you need to change to divide the string. Example 1: Input: s = "abc", k = 2 Output: 1 Explanation: You can split the string into "ab" and "c", and change 1 character in "ab" to make it palindrome. ...
Explanation: The palindrome partitioning ["aa","b"] could be produced using 1 cut. 题意同样简单明了。 解法: 由上题Palindrome Partitioning,可以得到一个解此题的思路,DFS穷举所有方案。然而,仅仅是DFS会超时。此题仅要求求得划分次数最小的方法的划分次数。在这个问题下,dfs(string &s, int idx) 返回...
【leetcode】1278. Palindrome Partitioning III 2019-12-07 08:27 −题目如下: You are given a string s containing lowercase letters and an integer k. You need to : First, change some characters of s&n... seyjs 0 462 @codeforces - 932G@ Palindrome Partition ...
257 【leetcode】1278. Palindrome Partitioning III 2019-12-07 08:27 −题目如下: You are given a string s containing lowercase letters and an integer k. You need to : First, change some characters of s&nb... seyjs 0 463 1042 Shuffling Machine (20分)(水) ...