LeetCode 580. Count Student Number in Departments
A university uses 2 data tables, student and department, to store data about its students and the departments associated with each major.
Write a query to print the respective department name and ...
LeetCode 578. Get Highest Answer Rate Question
Get the highest answer rate question from a table survey_log with these columns: uid, action, question_id, answer_id, q_num, timestamp.
uid means user id; action has these kind of values: "show", "answer", "skip" ...
LeetCode Weekly Contest 31是LeetCode举办的第三十六场正式周赛，共4道题目，比赛时长1.5小时。
比赛链接：https://leetcode.com/contest/leetcode-weekly-contest-31/
题解列表：
LeetCode 575. Distribute Candies
LeetCode 572. Subtree of Another Tree
LeetCode 576. Out of Boundary Paths
There is an m by n grid with a ball. Given the start coordinate (i,j) of the ball, you can move the ball to adjacent cell or cross the grid boundary in ...
LeetCode 573. Squirrel Simulation
There's a tree, a squirrel, and several nuts. Positions are represented by the cells in a 2D grid. Your goal is to find the minimal distance for the squirrel to collect all the nuts and ...