Lexicographical Smallest String
There is a string $s$ of length $n$ containing lowercase letters and an integer $k$. Among the lette...
Anita's Experiment
Little Anita is doing an experiment with herself. Everyday, depending on her mood, she determines a ...
Equal Distribution
Subhashis and Bipro participated in many onsite programming contests during their varsity life. From...
Tree Knapsack Problem
Akash loves maths, but being from Rajshahi, he also loves mangoes. That is why he has a large mango ...
Hot Hike
In order to pass time during your vacation, you decided to go on a hike to visit a scenic lake up in...
Collectors Problem
The Bat club controls Gotham City. They decided to bring equality to the city (Of course, with some ...
Palindromic Naming Convention
In Strangeland, people name their child in a cute way. I'm sure you already know the way by the prob...
Directed Rectangle
Sami has just finished his assignments, to relax, he wants to play games. Since he’s banned from PUB...
Forgotten Pin Code
You have been using a 4 digit pin code to lock your phone that, no matter how much you are trying no...
Yet Another Xinversion
The problem statement is simple. You are given a rooted tree (1 is the root) and every node has a co...
Prochur Chhuti Lagbe (প্রচুর ছুটি লাগবে)
Nibir is currently working as a software engineer. He has been continuously working for the past few...
Jontrona!
Isfan vai is on high demand nowadays. You know why, right? However, his best friend is somewhat disa...
Game of Tic-Tac-Toe
Alice and Bob is a playing a game of tic-tac-toe, to be precise a variant of tic-tac-toe called Nota...
Let's Permute The String
Mr. Alex is one of the best programmer in your university. He is very interested in string. So, Mr. ...
One Ball Many Chocolates
Alice, Bob and Charlie, team ABC have come to the venue of world finals to be inspired by the world ...
Anina’s Birthday Gift
Anina is a girl who is very much interested in mathematics. She likes to solve Geometry and Counting...
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