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执行出错信息: AddressSanitizer: stack-overflow on address 0x7ffcc2642ff8 (pc 0x0000003b8738 bp 0x7ffcc2643010 sp 0x7ffcc2643000 T0) 最后执行的输入: [28,-98,67,null,-89,62,null,-97,-25,null,64,null,null,-72,-9,null,null,-88,-41,null,-7,null,-78,-53,null,null,2,-85,-77...
Push to stack: When the stack is empty, just store it, and assign it tominValue. If the stack is not empty, we calculate the difference between the val and theminValue:diff=val-minValue, store it into the stack. - If the difference(diff) bigger than or equal to zero:diff>=0, th...
Leetcode1 is a repository focused on solving algorithmic challenges from LeetCode, aimed at improving coding skills and problem-solving abilities. It includes solutions in multiple programming languages, with clear explanations for each approach. ...
You may assume that all operations are valid (for example, no pop or top operations will be called on an empty stack). Credits: Special thanks to@jianchao.li.fighterfor adding this problem and all test cases. 这道题让我们用队列来实现栈,队列和栈作为两种很重要的数据结构,它们最显著的区别就...
Problem 5: Leetcode 110 给定一个二叉树,判断它是否是高度平衡的二叉树。 本题中,一棵高度平衡二叉树定义为:一个二叉树每个节点 的左右两个子树的高度差的绝对值不超过 1 。 平衡二叉树的定义都不是很陌生,所以只需要计算它左右子树的深度再判断是否符合条件即可。因此如果使用DFS,代码可以写的非常简单,我们直...
In our problem, we need to track the rooms we have visited. Therefore, we create a boolean array and mark room zero as visited. boolean[] seen = new boolean[rooms.size()]; seen[0] = true; In Java, we can use the Stack class to help maintain the order of our elements (Last-...
Trivia: This problem was inspired by this original tweet by Max Howell: Google: 90% of our engineers use the software you wrote (Homebrew), but you can’t invert a binary tree on a whiteboard so f*** off. 226. 翻转二叉树 (简单) 翻转一棵二叉树。 示例: 输入: 输出: 备注: 这个问题...
1526.Minimum-Number-of-Increments-on-Subarrays-to-Form-a-Target-Array (H-) 1649.Create-Sorted-Array-through-Instructions (H-) 1157.Online-Majority-Element-In-Subarray (H) 370.Range-Addition (H) 218.The-Skyline-Problem (H+) 699.Falling-Squares (H) 715.Range-Module (H) 2286.Booking-Con...
Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as: a binary tree in which the depth of the two subtrees of every node never differ by more than 1. Example 1: Given the following tree [3,9,20,null,null,15,7]: 3...