摘要：
题目 Given an array of intervals intervals where intervals[i] = [starti, endi], return the minimum number of intervals you need to remove to make the re 阅读全文
摘要：
题目 Write an efficient algorithm that searches for a value target in an m x n integer matrix matrix. This matrix has the following properties: Integers 阅读全文
摘要：
题目 Given a positive integer n, generate an n x n matrix filled with elements from 1 to n2 in spiral order. Example 1: Input: n = 3 Output: [[1,2,3],[8 阅读全文
摘要：
题目 You are given an n x n 2D matrix representing an image, rotate the image by 90 degrees (clockwise). You have to rotate the image in-place, which me 阅读全文
摘要：
题目 Given an integer rowIndex, return the rowIndexth (0-indexed) row of the Pascal's triangle. In Pascal's triangle, each number is the sum of the two 阅读全文
摘要：
题目 Design a HashMap without using any built-in hash table libraries. Implement the MyHashMap class: MyHashMap() initializes the object with an empty m 阅读全文
摘要：
题目 Given an array of intervals where intervals[i] = [starti, endi], merge all overlapping intervals, and return an array of the non-overlapping interv 阅读全文
摘要：
题目 Given an array nums with n objects colored red, white, or blue, sort them in-place so that objects of the same color are adjacent, with the colors 阅读全文
摘要：
题目 Given an array nums of size n, return the majority element. The majority element is the element that appears more than ⌊n / 2⌋ times. You may assum 阅读全文
摘要：
题目 Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each 阅读全文