Problem Link: Day of the Programmer

Marie invented a Time Machine and wants to test it by time-traveling to visit Russia on the Day of the Programmer (the 256th day of the year) during a year in the…

Problem Link: Organizing Containers of Balls

David has n containers and n different types of balls, both of which are numbered from 0 to n-1. The distribution of ball types per container are described by an n x n matrix of integers, M, where each…

Problem Link: Separate the Numbers

A numeric string, s, is beautiful if it can be split into a sequence of two or more positive integers, a1,a2,….. ,an, satisfying the following conditions:

Problem Link: Minimum Absolute Difference in an Array

Consider an array of integers, A=a0,a1,……..an-1. We define the absolute difference between two elements, ai and aj ,where(i != j) to be the absolute value ai — aj.

Problem Link: KnightL on a Chessboard

KnightL is a chess piece that moves in an L shape. We define the possible moves of KnightL(a,b) as any movement from some position (x1,y1) to some (x2,y2) to some satisfying either of the following: