LeetCode 410. Split Array Largest Sum
Description https://leetcode.com/problems/split-array-largest-sum/ Given an array nums which consists of non-negative integers and an integer m, you can split the array into m non-empty continuous subarrays.…
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LeetCode 315. Count of Smaller Numbers After Self
Description https://leetcode.com/problems/count-of-smaller-numbers-after-self/ You are given an integer array nums and you have to return a new counts array. The counts array has the property where counts[i] is the…
LeetCode 833. Find And Replace in String
Description https://leetcode.com/problems/find-and-replace-in-string/ To some string S, we will perform some replacement operations that replace groups of letters with new ones (not necessarily the…
LeetCode 951. Flip Equivalent Binary Trees
Description https://leetcode.com/problems/flip-equivalent-binary-trees/ For a binary tree T, we can define a flip operation as follows: choose any node, and swap the left and…
LeetCode 359. Logger Rate Limiter
Description https://leetcode.com/problems/logger-rate-limiter/ Design a logger system that receive stream of messages along with its timestamps, each message should be printed…
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…