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 7/19/56
Chop Chop
There is a convex polygon A of n vertices and you want to divide it into two convex polygons P and Q...
Moderate 5/9/42
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 3/7/11
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 ...
DP Moderate 5/19/83
Network Reach
Shohurephone, the popular telecom company in Swapnodesh has received a lot of backlash over the last...
Old Wives' Game
Kadambari wants to test the brains of the new bride Mrinalini. So she proposed the infamous Old Wive...
Python Interpreter
Sudipa is learning to code in Python 3 and her best friend Sutapa is teaching her a few things every...
Sgt. Laugh
That's it. Sgt. Laugh has had enough. He is determined to end the evil military reign of General Cry...
Shopping Mania
Shapla and Jui have entered the final round of Shopping Mania, an annual shopping game played by two...
Strong Passwords
Mitu had been using the password mitu1997qt on all her online accounts. And sure enough, her account...
Wizard Duel
Wizard Duel is approaching soon in Hogwarts and the students of the Dueling Club are absolutely thri...
DFS, Graph, Math Moderate 14/17/40
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