Author: ACMer
Teaching Kids Programming: Videos on Data Structures and Algorithms Given two lists of integers nums, and target, consider an operation where you take some sublist in nums and reverse …
In Java, we can use the handy String’s method Split to split a string by the given delimiter into array of strings. Have you wondered how it is implemented? …
Teaching Kids Programming: Videos on Data Structures and Algorithms Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 …
Letting users picking password in console is a commonly wanted feature. We let the users enter a password string, and check if it is a valid password e.g. minimal …
Teaching Kids Programming: Videos on Data Structures and Algorithms You are given a two-dimensional list of integers coordinates. Each list contains two integers representing a point on the Cartesian …