LeetCode 247. Strobogrammatic Number II
Description https://leetcode.com/problems/strobogrammatic-number-ii/ A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down).…
Category: LeetCode
LeetCode 394. Decode String
Description https://leetcode.com/problems/decode-string/ Given an encoded string, return its decoded string. The encoding rule is: k[encoded_string], where the encoded_string inside the square brackets is…
LeetCode 207. Course Schedule
Description https://leetcode.com/problems/course-schedule/ There are a total of numCourses courses you have to take, labeled from 0 to numCourses-1. Some courses may have prerequisites, for example…
LeetCode 904. Fruit Into Baskets
Description https://leetcode.com/problems/fruit-into-baskets/ In a row of trees, the i-th tree produces fruit with type tree[i]. You start at any tree of your choice, then repeatedly perform…
LeetCode 329. Longest Increasing Path in a Matrix
Description https://leetcode.com/problems/longest-increasing-path-in-a-matrix/ Given an integer matrix, find the length of the longest increasing path. From each cell, you can either…
LeetCode 210. Course Schedule II
Description https://leetcode.com/problems/course-schedule-ii/ There are a total of n courses you have to take labelled from 0 to n – 1. Some courses may have prerequisites, for…
LeetCode 253. Meeting Rooms II
Description https://leetcode.com/problems/meeting-rooms-ii/ Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],…] (si < ei), find the minimum number…
LeetCode 681. Next Closest Time
Description https://leetcode.com/problems/next-closest-time/ Given a time represented in the format “HH:MM”, form the next closest time by reusing the current digits.…
LeetCode 159. Longest Substring with At Most Two Distinct Characters
Description https://leetcode.com/problems/longest-substring-with-at-most-two-distinct-characters/ Given a string s , find the length of the longest substring t that contains at most 2 distinct characters. Example 1: Input: “eceba”…
LeetCode 844. Backspace String Compare
Description https://leetcode.com/problems/backspace-string-compare/ Given two strings S and T, return if they are equal when both are typed into empty text editors. # means a backspace character. Note…