Seven Kingdoms!

The dragon queen just conquered the Seven Kingdoms. Initially there are N cities in “Seven Kingdoms”...

Village Fair 2

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

Color The Graph

You are given an acyclic, bidirectional graph with N nodes and M edges. The nodes are numbered from ...

Directed Rectangle

Sami has just finished his assignments, to relax, he wants to play games. Since he’s banned from PUB...

Spanning Tree

There are N nodes in a tree. You can start from any node of that tree and you have to come back to t...

Keep Moving

Balurmath is a city which has N interesting tourist spots, which are connected between themselves by...

Explosion

There is a house named Larcana. It is a very weird house .There are exactly N rooms in total and bet...

Meena Meets The Marauders

December 14, 1975 Hogwarts School of Witchcraft and Wizardry It’s been a long long day. The Marauder...

Wakanda Forever

We all know that Thanos has erased half of the population of the universe. Earth’s population was al...

Traveling Policy of Ajobdesh

In Ajobdesh, there are multiple cities and one of them is considered as the capital city. Obviously,...

Flow on Tree

Mr. Kaboom has recently learned about maximum flow. Now his friend Mr. Taboom gave him this problem....

Kingdom - Great Roads of Destiny

Shin wants to be the “Great General of the Heaven”. It is his dream. But becoming a “Great General o...

Bad XOR 2 (Hard)

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

Act of Random Kindness (Hard)

Sammy and Meera liked adventures a lot. Once in a while they used to set out adventures. This time t...

Sofdor Ali's Black and White Tree

Sofdor Ali loves Computer Science. He prefers hexadecimal number system to decimals, just because it...

Kingdom of Code

Kingdom CODE is the most peaceful place in the universe. King NOVOSH and Queen ALMIDA is ruling this...

Flyover in Twinland

Rio has become the president of Twinland. Now he wants to develop his country to fulfill his promise...

Ghosh vs Datta

About two hundred years ago, a serious dispute evoked between the two neighboring colonies of Khulna...

Darth Vader and 3PO on a Tree!

Did you watch Star Wars yet? No? You should in your free time. Now back to Darth Vader and 3PO. Dart...

Circuit Breaker

In your free time, you like to design various electrical circuits to give a hard time to your local ...