Leetcode

问题 Maximum Profit in Job SchedulingHard We have n jobs, where every job is scheduled to be done from

问题 Patching Array Hard Given a sorted integer array nums and an integer n, add/patch elements to the

问题 Sudoku Solver Hard Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku

问题 Verify Preorder Serialization of a Binary Tree Medium One way to serialize a binary tree is to us

问题 Rank Transform of a Matrix Hard Given an m x n matrix, return a new matrix answer where answer[ro

问题 Making A Large Island Hard You are given an n x n binary matrix grid. You are allowed to change a

问题 Maximum Product of Splitted Binary Tree Medium Given the root of a binary tree, split the binary

问题 Decode Ways Medium A message containing letters from A-Z can be encoded into numbers using the fo

问题 Remove Boxes Hard You are given several boxes with different colors represented by different posi

问题 Count Good Nodes in Binary Tree Given a binary tree root, a node X in the tree is named good if i

问题 Given two strings s and t of lengths m and n respectively, return the minimum window substring of