原题链接在这里:https://leetcode.com/problems/valid-palindrome-iii/ 题目: Given a stringsand an integerk, find out if the given string is aK-Palindromeor not. A string is K-Palindrome if it can be transformed into a palindrome by removing at mostkcharacters from it. Example 1: Input: ...
Memory Usage: 21.3 MB 1classSolution {2func isValidPalindrome(_ s: String, _ k: Int) ->Bool {3let n:Int =s.count4vars:[Character] =Array(s)5vardp:[Int] = [Int](repeating:1, count: n)6foriin0..<n7{8varlast:Int =09forjinstride(from: i -1, through:0, by: -1)10{11v...
Valid Palindrome·有效回文 秦她的菜 吉利 程序员 来自专栏 · Leetcode刷题笔记 题目描述 英文版描述 A phrase is a palindrome if, after converting all uppercase letters into lowercase letters and removing all non-alphanumeric characters, it reads the same forward and backward. Alphanumeric ...
Leetcode 694 Number of Distinct Islands Leetcode 131 Palindrome Partitioning 基于排列组合的DFS: 其实与图类DFS方法一致,但是排列组合的特征更明显 Leetcode 17 Letter Combinations of a Phone Number Leetcode 39 Combination Sum(I, II, III相似, IV为动态规划题目) Leetcode 78 Subsets (I, II 重点在于如...
1216.Valid-Palindrome-III (M+) 1312.Minimum-Insertion-Steps-to-Make-a-String-Palindrome (M+) 1458.Max-Dot-Product-of-Two-Subsequences (M) 1771.Maximize-Palindrome-Length-From-Subsequences (H) 状态压缩DP 465.Optimal-Account-Balancing (H) 691.Stickers-to-Spell-Word (H) 1125.Smallest-Suffici...
216 Combination Sum III Medium Go 217 Contains Duplicate Easy Go 219 Contains Duplicate II Easy Go 222 Count Complete Tree Nodes Easy Go 225 Implement Stack using Queues Easy 226 Invert Binary Tree Easy Go 230 Kth Smallest Element in a BST Medium Go 234 Palindrome Linked List Easy Go 236 ...
LeetCode216. 组合总和 III ☕ 题目:77. 组合 (https://leetcode-cn.com/problems/combinations/) ❓ 难度:中等 📕 描述: 找出所有相加之和为n的 k 个数的组合。组合中只允许含有 1 - 9 的正整数,并且每种组合中不存在重复的数字。 说明: ...
260 Single Number III 40.7% Medium 258 Add Digits 47.6% Easy 257 Binary Tree Paths 24.9% Easy 242 Valid Anagram 39.1% Easy 241 Different Ways to Add Parentheses 30.6% Medium 240 Search a 2D Matrix II 31.4% Medium 239 Sliding Window Maximum 24.8% Hard 238 Product of Array Except Self 39.5...
1216 Valid Palindrome III 47.7% Hard 1217 Play with Chips Go 64.3% Easy 1218 Longest Arithmetic Subsequence of Given Difference 44.5% Medium 1219 Path with Maximum Gold 65.1% Medium 1220 Count Vowels Permutation 53.9% Hard 1221 Split a String in Balanced Strings Go 83.2% Easy 1222 Que...
1216 Valid Palindrome III 49.4% Hard 1217 Minimum Cost to Move Chips to The Same Position Go 71.3% Easy 1218 Longest Arithmetic Subsequence of Given Difference 46.4% Medium 1219 Path with Maximum Gold 65.5% Medium 1220 Count Vowels Permutation 54.1% Hard 1221 Split a String in Balanced...