Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview.
// Solution 1: This is a very challenging problem, maybe because it looked like one and proved exactly to be one. It's among the last few problem I solved on LeetCode. It took me hours to think it through and another 1 or 2 to write an acceptable version of code. A rough idea w...
53. 最大子数组和 - 给你一个整数数组 nums ,请你找出一个具有最大和的连续子数组(子数组最少包含一个元素),返回其最大和。 子数组 是数组中的一个连续部分。 示例 1: 输入:nums = [-2,1,-3,4,-1,2,1,-5,4] 输出:6 解释:连续子数组 [4,-1,2,1] 的和最大,为
LeetCode Solutions: A Record of My Problem Solving Journey.( leetcode题解,记录自己的leetcode解题之路。) javascript python java computer-science tree algorithm algorithms leetcode cpp interview algo data-structures leetcode-solutions algorithms-datastructures Updated Feb 22, 2025 JavaScript apachecn /...
给你一个二叉树的根节点root, 检查它是否轴对称。 示例1: 输入:root = [1,2,2,3,4,4,3]输出:true 示例2: 输入:root = [1,2,2,null,3,null,3]输出:false 提示: 树中节点数目在范围[1, 1000]内 -100 <= Node.val <= 100 进阶:你可以运用递归和迭代两种方法解决这个问题吗?
实现pow(x,n),即计算x的整数n次幂函数(即,xn)。 示例1: 输入:x = 2.00000, n = 10输出:1024.00000 示例2: 输入:x = 2.10000, n = 3输出:9.26100 示例3: 输入:x = 2.00000, n = -2输出:0.25000解释:2-2= 1/22= 1/4 = 0.25 提示: ...
365 Water and Jug Problem Algorithms Medium 363 Max Sum of Rectangle No Larger Than K Algorithms Medium 357 Count Numbers with Unique Digits Algorithms Medium 355 Design Twitter design-twitter Algorithms Hard 354 Russian Doll Envelopes Algorithms Hard 352 Data Stream as Disjoint Intervals Algorithms Ha...
testHead=testHead.next; } }if(!valid){break; }if(pre ==null){ pre=testHead; ret=pre; }else{ pre.next=testHead; } ListNode oldPre=current; ListNode next=current.next; current.next=testHead.next; pre=current; current=next;for(inti = 1; i < k; ++i){ ...
(,, ): HDU 1542 Atlantis update: query: HDU 1828 Picture update: query: Title Solution Difficulty Time Space O(n log 218. The Skyline Problem Go Hard O(n) n) 307. Range Sum Query - Go Hard O(1) O(n) Mutable 315. Count of Smaller O(n log Go Hard O(n) Numbers After Self ...
leetcode problem 3sum 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 classSolution { public: vector<vector<int>> threeSum(vector<int>& nums) {...