排序map、pq、stack。固定 递归 贪心 开关 二分 滑动窗口（固递贪开二滑）

摘要： ［抄题］： Given an array which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays. Write an 阅读全文

摘要： ［抄题］： There is a new alien language which uses the latin alphabet. However, the order among letters are unknown to you. You receive a list of non-empt 阅读全文

摘要： ［抄题］： Given an array of words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) 阅读全文

摘要： ［抄题］： Given an input string (s) and a pattern (p), implement wildcard pattern matching with support for '?' and '*'. The matching should cover the ent 阅读全文

摘要： ［抄题］： Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string ma 阅读全文

摘要： ［抄题］： Serialization is the process of converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffe 阅读全文

摘要： ［抄题］： Convert a non-negative integer to its english words representation. Given input is guaranteed to be less than 231 - 1. Example 1: Example 2: Exa 阅读全文

摘要： ［抄题］： Given a 2D binary matrix filled with 0's and 1's, find the largest rectangle containing only 1's and return its area. Example: [暴力解法]： 时间分析： 空间分 阅读全文

摘要： ［抄题］： Given a grid where each entry is only 0 or 1, find the number of corner rectangles. A corner rectangle is 4 distinct 1s on the grid that form an 阅读全文

摘要： ［抄题］： We have two integer sequences A and B of the same non-zero length. We are allowed to swap elements A[i] and B[i]. Note that both elements are in 阅读全文