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...
Jontrona!
Isfan vai is on high demand nowadays. You know why, right? However, his best friend is somewhat disa...
Jontrona of Liakot
Liakot, the king of Cox's Bazar, is currently in a dire situation. His own younger sister Ayesha is ...
Keep It Cool
As the workload of the semester is ramping up you get the task of refilling the fridge in the lab wi...
Greedy Moderate 33/37/89
Lexicographical Smallest String
There is a string $s$ of length $n$ containing lowercase letters and an integer $k$. Among the lette...
Make More Money
You, the great businessman of TEUB, arrived at ESC land which consists of N cities numbered from 1 t...
Misti Chor
Bhootu likes to eat misti. As he is a mischievous kid, he has decided to steal misti from the nearby...
Passwords
Alice wants to extract some passwords from a random string. A password can have any number of charac...
Permutations and Divisors
Let P be a permutation of length n where each value from 1 to n occurs exactly once. A subsequence o...
Problem Setter Crisis
Competitive Programming is very popular in Leading University. There are many great achievements of ...
Quarantiko
"If you feel unwell, stay home." Riaz has created a special encryption algorithm named Quarantiko to...
Remember-Remainder
Zarin is a sadist. She loves to give problems to her close people. Today she gives you an array cons...
Road Minister Techboy
Techboy is appointed as the minister of roads and highway in his country Better-Not-Name-It. Now he ...
Subset AND
You are given an array A of n integers and an integer k. You need to find if there is any non-empty ...
The Hidden Island
It is believed that the hidden island of TreasureLand has many unsolved mysteries and undiscovered t...
Train Hijack
You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a...
Who Ate the Pizza Slices?
Misty’s life is very dramatic. No matter how careful she is, some interesting and sometimes unfortun...
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