热带雨林

摘要： javascript： 合并多层级数组：https://blog.csdn.net/Xiao_Spring/article/details/79262917 阅读全文

摘要： Design a HashMap without using any built-in hash table libraries. To be specific, your design should include these functions: put(key, value) : Insert 阅读全文

摘要： Alice has n candies, where the ith candy is of type candyType[i]. Alice noticed that she started to gain weight, so she visited a doctor. The doctor a 阅读全文

摘要： Given an integer array nums, you need to find one continuous subarray that if you only sort this subarray in ascending order, then the whole array wil 阅读全文

摘要： Given a balanced parentheses string S, compute the score of the string based on the following rule: () has score 1 AB has score A + B, where A and B a 阅读全文

摘要： Given a string and a string dictionary, find the longest string in the dictionary that can be formed by deleting some characters of the given string. 阅读全文

摘要： On a broken calculator that has a number showing on its display, we can perform two operations: Double: Multiply the number on the display by 2, or; D 阅读全文

摘要： Given a m * n matrix mat of ones (representing soldiers) and zeros (representing civilians), return the indexes of the k weakest rows in the matrix or 阅读全文

摘要： In an N by N square grid, each cell is either empty (0) or blocked (1). A clear path from top-left to bottom-right has length k if and only if it is c 阅读全文

摘要： 1038. Binary Search Tree to Greater Sum Tree Given the root of a Binary Search Tree (BST), convert it to a Greater Tree such that every key of the ori 阅读全文