Beauty of AP

Solving problems is fun in competitive programming, right? So let’s solve a fun task today too :P. 1...

Christmas Gifts

It’s Christmas time! It’s the time when Santa brings gift for the children. This year Santa has K ty...

Tom Is a Good Mentor

Today is the first day of the little mouse Jerry at school. Famous mathematician Tom is his teacher....

LCM Divisible Subsequence

You’ll be given an array of N integers and two more integers K and M. You have to find the number of...