Leetcode Q725. Split Linked List in Parts (Q583) Given the head of a singly linked list and an integer k, split the linked list into k consecutive linked list parts. The length of each part should be as equal as possible: no two parts should have a size differing by more…

Leetcode Q724. Find Pivot Index (Q582) Given an array of integers nums, calculate the pivot index of this array. The pivot index is the index where the sum of all the numbers strictly to the left of the index is equal to the sum of all the numbers strictly to the…

Leetcode Q722. Remove Comments (Q581) Given a C++ program, remove comments from it. The program source is an array of strings source where source[i] is the ith line of the source code. This represents the result of splitting the original source code string by the newline character ‘\n’. In C++, there…

Leetcode Q721. Accounts Merge (Q580) Given a list of accounts where each element accounts[i] is a list of strings, where the first element accounts[i][0] is a name, and the rest of the elements are emails representing emails of the account. Now, we would like to merge these accounts. Two accounts definitely…

Leetcode Q720. Longest Word in Dictionary (Q579) Given an array of strings words representing an English Dictionary, return the longest word in words that can be built one character at a time by other words in words. If there is more than one possible answer, return the longest word with the…

Leetcode Q719. Find K-th Smallest Pair Distance (Q578) The distance of a pair of integers a and b is defined as the absolute difference between a and b. …

Leetcode Q718. Maximum Length of Repeated Subarray (Q577) Given two integer arrays nums1 and nums2, return the maximum length of a subarray that appears in both arrays. Example 1: Input: nums1 = [1,2,3,2,1], nums2 = [3,2,1,4,7] Output: 3 Explanation: The repeated subarray with maximum length is [3,2,1]. Example 2: Input…

Leetcode Q717. 1-bit and 2-bit Characters (Q576) We have two special characters: The first character can be represented by one bit 0. The second character can be represented by two bits (10 or 11). …

Leetcode Q715. Range Module (Q575) A Range Module is a module that tracks ranges of numbers. Design a data structure to track the ranges represented as half-open intervals and query about them. A half-open interval [left, right) denotes all the real numbers x where left <= x < right. Implement the RangeModule…