Lexicographical Smallest String
There is a string $s$ of length $n$ containing lowercase letters and an integer $k$. Among the lette...
Game of Gnomes
The enemy and their massive army is approaching your fortress, and all you have to defend it is a le...
Escape Plan
Hey, you are stuck on prison and you have to get out soon. This prison has one way road and you can ...
Disturbing Students
N students were gathered in front of CSEmpur gate. They wanted to take a tour of the famous CSEmpur ...
Binary Pigeons
There are $N$ pigeons standing one after another in a straight line. There are two kinds of pigeons:...
Inversions and Goodbye
It's time to say goodbye to CSEmpur, at least for today. And so you wanted to give the citizens of C...
Quarantiko
"If you feel unwell, stay home." Riaz has created a special encryption algorithm named Quarantiko to...
Train Hijack
You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a...
Jontrona of Liakot
Liakot, the king of Cox's Bazar, is currently in a dire situation. His own younger sister Ayesha is ...
Flow on Tree
Mr. Kaboom has recently learned about maximum flow. Now his friend Mr. Taboom gave him this problem....
Assigning Workstations
Penelope is part of the admin team of the newly built supercomputer. Her job is to assign work-stati...
Road Minister Techboy
Techboy is appointed as the minister of roads and highway in his country Better-Not-Name-It. Now he ...
Dominoes Forever
Once when I was little, my father took me to a tobacco shop! It is surprising, but true. He asked th...
Estimation of Techboy
Techboy works in a software company. He codes in Node.js and React. Every now and then he has to giv...
Ekupai
Hacker robot Ekupai is trying to hack a supercomputer. He needs a cheat code X to hack this computer...
Remember-Remainder
Zarin is a sadist. She loves to give problems to her close people. Today she gives you an array cons...
Jontrona!
Isfan vai is on high demand nowadays. You know why, right? However, his best friend is somewhat disa...
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