Problems by reborn

Ada in Dreamland

Ada is wondering in her dreamland. Her dreamland consists of n spots. She has this weird machine wit...

Graph Moderate 6/17/52

Chop Chop

There is a convex polygon A of n vertices and you want to divide it into two convex polygons P and Q...

Chow, Mo

Mo, the jumper has found an extraordinary tree in the woods. He absolutely loves it. He already has ...

Expansion

The use of the central road in Utopia’s capital has increased by a great value in recent years. So, ...

Moderate 1/4/8

Levi Squad

Titans have breached Wall Maria! Since Erwin is in the capital, Levi quickly gathered his squad of $...

Lost in Binary Tree

You have a rooted unweighted binary tree. But somehow you forgot which vertex was the root. Well, yo...

Magic Mirror on the Wall

Kyablakanto and his friend Chalakanti went into the Mirror Room after browsing through the fair. In ...

Mix and Merge

You are given an array A of n elements and a constant k. You can perform the following operation on ...

Old Wives' Game

Kadambari wants to test the brains of the new bride Mrinalini. So she proposed the infamous Old Wive...

Moderate 9/21/34

Sgt. Laugh

That's it. Sgt. Laugh has had enough. He is determined to end the evil military reign of General Cry...

DP Moderate 10/24/146

Shopping Mania

Shapla and Jui have entered the final round of Shopping Mania, an annual shopping game played by two...

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