LeetCode 257. Binary Tree Paths
Description https://leetcode.com/problems/path-crossing/ Given the root of a binary tree, return all root-to-leaf paths in any order. A leaf is a node with no children. Example 1:…
Tag: Yahoo Interview Question
LeetCode 1496. Path Crossing
Description https://leetcode.com/problems/path-crossing/ Given a string path, where path[i] = ‘N’, ‘S’, ‘E’ or ‘W’, each representing moving one unit north, south, east, or west, respectively. You start…
LeetCode 530. Minimum Absolute Difference in BST
Description https://leetcode.com/problems/minimum-absolute-difference-in-bst/ Given the root of a Binary Search Tree (BST), return the minimum absolute difference between the values of any two different…
LeetCode 1475. Final Prices With a Special Discount in a Shop
Description https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/ Given the array prices where prices[i] is the price of the ith item in a shop. There is a special discount for items in…
LeetCode 922. Sort Array By Parity II
Description https://leetcode.com/problems/sort-array-by-parity-ii/ Given an array of integers nums, half of the integers in nums are odd, and the other half are even. Sort the array…
LeetCode 1614. Maximum Nesting Depth of the Parentheses
Description https://leetcode.com/problems/maximum-nesting-depth-of-the-parentheses/ A string is a valid parentheses string (denoted VPS) if it meets one of the following: It is an empty string “”,…
LeetCode 1148. Article Views I
Description https://leetcode.com/problems/article-views-i/ SQL Schema Table: Views +—————+———+ | Column Name | Type | +—————+———+ | article_id | int | | author_id…
LeetCode 610. Triangle Judgement
Description https://leetcode.com/problems/triangle-judgement/ SQL Schema A pupil Tim gets homework to identify whether three line segments could possibly form a triangle.However,…
LeetCode 693. Binary Number with Alternating Bits
Description https://leetcode.com/problems/binary-number-with-alternating-bits/ Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have…
LeetCode 290. Word Pattern
Description https://leetcode.com/problems/word-pattern/ Given a pattern and a string s, find if s follows the same pattern. Here follow means a full match, such that there is a…