However, when faced with a mix of one easy and one hard problem, these chances plummet to a mere 20%. And if presented with two hard problems — an approximation of senior-level interviews in big tech — the success rate falls even further to approximately 5%. Claims that ChatGPT "...
LeetCode155 Easy最小栈https://leetcode-cn.com/problems/min-stack LeetCode232 Easy 用栈实现队列https://leetcode-cn.com/problems/implement-queue-using-stacks(剑指Offer9雷同) LeetCode1047 Easy 删除字符串中所有相邻重复项https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string/ (...
I hope this post will help you. Begin from easy problems and try to solve some similar problems to better understand. Do not try to cheat. If you are cheating the you are making no progress. If you cannot solve problem more than 2 hours then skip but do not forget to return and ...
刷哈希表,二分,二叉树,链表,DFS等常见考点的题; 刷Easy和Medium难度的题足以应付大部分Entry Level的面试了,Hard难度的题在很少出现,而且理解起来很费时间,刷起来性价比很低。但是同学工作几年后到了Senior Level可能就要开始在这Hard问题一块侧重了。 可以把这些题作为例题,这一步的任务就是收集这些例题并熟悉他...
https://leetcode.com/problems/n-ary-tree-level-order-traversal/ 自我感觉难度/真实难度:hard/easy 队列操作不熟悉 题意: 层序遍历树 分析: 自己的代码: """# Definition for a Node. class Node(object): def __init__(self, val, children): ...
Provide all my solutions and explanations in Chinese for all the Leetcode coding problems. Same as this: LeetCode All in One 题目讲解汇总(持续更新中...) Click below image to watch YouTube Video Note: All explanations are written in Github Issues, please do not create any new issue or ...
满二叉树的性质：最小值是2 ** (level - 1)，最大值是2 ** level - 1，其中 level 是树的深度。假如父节点的索引为 i，那么左子节点就是 2*i， 右边子节点就是 2*i + 1。假如子节点的索引是 i，那么父节点的索引就是 i // 2。先思考一般情况（不是之字形）， 然后通过观察找出规律 代码 cla...
Java Algorithm Problems Leetcode#ProblemLevelTagsTimeSpaceLanguageSequence N/A Jump Game II.java Hard [Array, Coordinate DP, DP, Greedy] O(n) O(1) Java 0 N/A Majority Number II.java Medium [Enumeration, Greedy] Java 1 N/A Search a 2D Matrix II.java Medium [Binary Search, Divide and...
leetcode 198. House Robber (Easy) https://leetcode.com/problems/house-robber/ 题意: 一维数组,相加不相邻的数组,返回最大的结果。 思路: 一开始思路就是DP,用一维数组保存dp[i]保存如果偷第i间,此时可偷到多少。DP的方向不太好,所以效率很低。
2618. 查询网格图中每一列的宽度(Easy) 题目地址 https://leetcode.cn/problems/find-the-width-of-columns-of-a-grid/description/ 题目描述 给你一个下标从0开始的m x n整数矩阵grid。矩阵中某一列的宽度是这一列数字的最大字符串长度。 比方说,如果grid = [[-10], [3], [12]],那么唯一一列的...