Given two words word1 and word2, find the minimum number of steps required to make word1 and word2 the same, where in each step you can delete one character in either string. Input: "sea", "eat" Output: 2 Explanation: You need one step to make "sea" to "ea" and another step t...
Task: You are given an integer arraycoinsrepresenting coins of different denominations and an integeramountrepresenting a total amount of money. Returnthe fewest number of coins that you need to make up that amount. If that amount of money cannot be made up by any combination of the coins, r...
You have a total ofncoins that you want to form in a staircase shape, where everyk-th row must have exactlykcoins. Givenn, find the total number of full staircase rows that can be formed. nis a non-negative integer and fits within the range of a 32-bit signed integer. Example 1: ...
示例 输入: 27 输出: true 示例 输入: 0 输出: false 示例 输入: 9 输出: true 示例 输入: 45 输出: false 进阶: 你能不使用循环或者递归来完成本题吗? 我的解答: 上次做过一个4的幂的题目,用同样的方法做一遍,复习一下,因为测试数据的原因,e的精度要提高 bool isPowerOfThree(int n){ if(n==0...
1533.Find-the-Index-of-the-Large-Integer (M) 1712.Ways-to-Split-Array-Into-Three-Subarrays (H) 1889.Minimum-Space-Wasted-From-Packaging (H-) 1901.Find-a-Peak-Element-II (H) 2563.Count-the-Number-of-Fair-Pairs (M+) 2819.Minimum-Relative-Loss-After-Buying-Chocolates (H) 2972.Count-...
434 Number of Segments in a String 36.7% Easy 435 Non-overlapping Intervals 41.4% Medium 436 Find Right Interval 42.4% Medium 437 Path Sum III 42.1% Easy 438 Find All Anagrams in a String 36.7% Easy 440 K-th Smallest in Lexicographical Order 26.3% Hard 441 Arranging Coins 37.6% Easy 442...
1561 Maximum Number of Coins You Can Get 78.6% Medium 1562 Find Latest Group of Size M 42.4% Medium 1563 Stone Game V 40.6% Hard 1564 Put Boxes Into the Warehouse I 67.1% Medium 1565 Unique Orders and Customers Per Month 83.6% Easy 1566 Detect Pattern of Length M Repeated K or...
0441 Arranging Coins Go 41.8% Easy 0442 Find All Duplicates in an Array 67.7% Medium 0443 String Compression 41.3% Easy 0444 Sequence Reconstruction 22.2% Medium 0445 Add Two Numbers II Go 54.5% Medium 0446 Arithmetic Slices II - Subsequence 32.7% Hard 0447 Number of Boomerangs Go 51...
Find Right Interval 437. Path Sum III 438. Find All Anagrams in a String 441. Arranging Coins 445. Add Two Numbers II 447. Number of Boomerangs 448. Find All Numbers Disappeared in an Array 451. Sort Characters By Frequency 453. Minimum Moves to Equal Array Elements 454. 4Sum II 455....
解释:节点 5 和节点 1 的最近公共祖先是节点 3 。 来源:力扣(LeetCode) 链接:https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-tree /** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; ...