拔岁:Leetcode SQL 简单难度精讲(1-10)15 赞同 · 1 评论文章 拔岁:Leetcode SQL 简单难度精讲(11-15)5 赞同 · 0 评论文章SQL刷题(简单) Easy 加粗的题目里面含有follow up question!斜体的题目是系列套题,可以一起做! 代码链接: pan.baidu.com/s/1sliHRE 提取码: 847f 16. Fin
Section 9: Amazon Math Question: Count Primes Lecture 43 Problem Introduction And Brute Force Explanation Lecture 44 Pseudocode Walkthrough For Brute Force Approach Lecture 45 Approach 2: Optimal solution Lecture 46 Pseudocode Walkthrough For Optimal Approach Lecture 47 Code Implementation Section 10: Ai...
Input:tokens = ["2","1","+","3","*"]Output:9Explanation:((2 + 1) * 3) = 9 Example 2: Input:tokens = ["4","13","5","/","+"]Output:6Explanation:(4 + (13 / 5)) = 6 Example 3: Input:tokens = ["10","6","9","3","+","-11","*","/","*","17","+"...
Given an integer array nums, return the number of longest increasing subsequences. Notice that the sequence has to be strictly increasing. Example 1: Input: nums = [1,3,5,4,7] Output: 2 Explanation: The two longest increasing subsequences are [1, 3, 4, 7] and [1, 3, 5, 7]. ...
Question Find the nth digit of the infinite integer sequence 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, ... Note: n is positive and will fit within the range of a 32-bit signed integer (n < 231). Example 1: Input:3Output:3 ...
1.Question You are given coins of different denominations and a total amount of money amount. Write a function to compute the fewest number of coins that you need to make up that amount. If that amount of money cannot be made up by any combination of the coins, return -1. Example 1:...
In the final report, we can see a comprehensive structured report, including the chapters and concepts covered in the student's question, grading results, and error question set, as shown in the screenshot here. Through the above concept organization, concept explanation, and error review process...
Question Given a non-empty array of integers, return the third maximum number in this array. If it does not exist, return the maximum number. The time complexity must be in O(n). Example 1: Input: [3, 2, 1] Output: 1 Explanation: The third maximum is 1. ...
Question Given an arraynumscontainingndistinct numbers in the range[0, n], returnthe only number in the range that is missing from the array. Example 1: Input:nums = [3,0,1] Output:2 Explanation**:** n = 3 since there are 3 numbers, so all numbers are in the range [0,3]. 2...
Question Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. 1 2 3 Example 2: Input: "bbbbb" Output: 1 Explanation: The answer is "b", with the leng...