Problem Given two strings s and t of lengths m and n respectively, return the minimum window substring of s such that every c...

Problem You are given an integer n and a 2D integer array queries. There are n cities numbered from 0 to n - 1. Initially, th...

Problem Given an integer array nums, return the length of the longest strictly increasing subsequence. A subsequence is an a...

Problem Serialization is the process of converting a data structure or object into a sequence of bits so that it can be store...

Problem The median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value,...

Problem You are given an array of k linked-lists lists, each linked-list is sorted in ascending order. Merge all the linked-l...

Problem You are given a binary string s and an integer k. You are also given a 2D integer array queries, where queries[i] = [...

Problem Given a wooden stick of length n units. The stick is labelled from 0 to n. For example, a stick of length 6 is labell...

Problem You are given two positive integers xCorner and yCorner, and a 2D array circles, where circles[i] = [x_i, y_i, r_i] d...