LeetCode 359. Logger Rate Limiter
Description https://leetcode.com/problems/logger-rate-limiter/ Design a logger system that receives a stream of messages along with their timestamps. Each unique message should only be…
LeetCode 731. My Calendar II
Description https://leetcode.com/problems/my-calendar-ii/ Implement a MyCalendarTwo class to store your events. A new event can be added if adding the event will not…
LeetCode 771. Jewels and Stones
Description https://leetcode.com/problems/jewels-and-stones/ You’re given strings J representing the types of stones that are jewels, and S representing the stones you have. Each character in S is…
LeetCode 753. Cracking the Safe
Description https://leetcode.com/problems/cracking-the-safe/ There is a box protected by a password. The password is a sequence of n digits where each digit can be…
LeetCode 809. Expressive Words
Description https://leetcode.com/problems/expressive-words/ Sometimes people repeat letters to represent extra feeling, such as “hello” -> “heeellooo”, “hi” -> “hiiii”. In these…
LeetCode 975. Odd Even Jump
Description https://leetcode.com/problems/odd-even-jump/ You are given an integer array A. From some starting index, you can make a series of jumps. The…
LeetCode 849. Maximize Distance to Closest Person
Description https://leetcode.com/problems/maximize-distance-to-closest-person/ You are given an array representing a row of seats where seats[i] = 1 represents a person sitting in the ith seat, and seats[i] =…
LeetCode 205. Isomorphic Strings
Description https://leetcode.com/problems/isomorphic-strings/ Given two strings s and t, determine if they are isomorphic. Two strings s and t are isomorphic if the characters in s can be replaced to get t.…
LeetCode 947. Most Stones Removed with Same Row or Column
Description https://leetcode.com/problems/most-stones-removed-with-same-row-or-column/ On a 2D plane, we place stones at some integer coordinate points. Each coordinate point may have at…
LeetCode 222. Count Complete Tree Nodes
Description https://leetcode.com/problems/count-complete-tree-nodes/ Given the root of a complete binary tree, return the number of the nodes in the tree. According to Wikipedia, every level, except…