Problem statement Given an m x n matrix matrix and an integer k, return the max sum of a rectangle in the matrix such that its sum is no larger than...
Problem statement Given an integer array nums, return the maximum difference between two successive elements in its sorted form. If the array contains...
Problem statement Given the head of a singly linked list, group all the nodes with odd indices together followed by the nodes with even indices, and...
Problem statement Write a program to solve a Sudoku puzzle by filling the empty cells. A sudoku solution must satisfy all of the following rules: Each...
Problem statement Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. Implement the LRUCache...
Problem statement You are given an array of non-overlapping intervals intervals where intervals[i] = [starti, endi] represent the start and the end of...