Author: ACMer

You are given a 2D integer array logs where each logs = indicates the birth and death years of the ith person. The population of some year x is …

Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a two-dimensional list of integers intervals where each list represents an inclusive interval. Return the longest interval …

Teaching Kids Programming: Videos on Data Structures and Algorithms You are given an integer n representing n full beer bottles. Given that you can exchange 3 empty beer bottles …

Often, we need to be able to convert Object to JSON (which is also called persistence of data) and then be able to convert it (JSON) back to Object. …

Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a two-dimensional list of integers matrix which contains 1s and 0s. Given that each row is sorted …