Fast Co-Prime
Two numbers A and B are called co-prime if the only common positive factor of the two numbers is 1. ...
Tom Is a Good Mentor
Today is the first day of the little mouse Jerry at school. Famous mathematician Tom is his teacher....
The Story of Two Friends
There are two friends F1 and F2 in a city. They both are student of FCB High School. Also, they resi...
Beauty of AP
Solving problems is fun in competitive programming, right? So let’s solve a fun task today too :P. 1...
LCM Divisible Subsequence
You’ll be given an array of $N$ integers and two more integers $K$ and $M$. You have to find the num...
Christmas Gifts
It's Christmas time! It's the time when Santa brings gift for the children. This year Santa has $K$ ...
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