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Alice and Bob are playing a game with a tree with n nodes. Alice always plays first, and the two pla...

So after successfully becoming many people's nightmare, XOR has struck again, this time to haunt you...

Arav is a curious young boy. He is learning to draw circles. He only got one color but a lot of brus...

You have to generate a convex polygon which has N points each Xi is distinct and is between 1 and N...

You are given N integers. Each integer is square free (i.e. it has no divisor which is a square numb...

Xiao Po is building a validation framework for his current project. He is now stuck with this proble...

You are given N integer numbers (A1​,A2​,A3​…AN​). You will also be given some query. Each query wil...

There are two gift shops in the city. They are going to merge together to create a bigger company. Y...

There are N houses in a village far away from here. They are numbered from 1 to N. For this problem ...