Aliens
19 February 2020, Unidentified flying object (UFO) has captured student’s attention on top of the CS...
Orchid Division
Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row...
Poltu and Digit Product
You are given two integer L and R. You have to find the summation of digit product of all number fro...
Divisible LCM
You have a sequence a1​, a2​, a3​, …, an​ of n integers and q queries. In each query, you are given ...
Smart Feature Phone 2
Alice worked in CIA. Right now he need to send an encrypted message to the headquarter(HQ) of CIA. ...
Array Partition
Today Leena learnt about subarrays and partitions. Given an array $A$, a subarray of this array is a...
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...
Powerful Array
You are given an array A of N integers . Now you have to process Q queries in this array. Each query...
Oishi Teacher and Her Naughty Class
Oishi teacher has returned to her class after the tiffin break. She noticed that some students who r...
Mix and Merge
You are given an array A of n elements and a constant k. You can perform the following operation on ...
reborn DP Moderate 5/19/83
Lets Play Pipeline
In this problem you will have to solve a puzzle game named "Pipeline". 90's kids knows this game ver...
Subway Surfers
Jake is a character of a well-known game named Subway Surfers. He is being chased by police because ...
Rainy Day
You have to complete N tasks tomorrow, where each task can last for any number of minutes. Each task...
Bikpik Colony
Bikpiks are very small aliens. Day by day they are becoming very dangerous for human being. They liv...
A Giveaway
Mr. Tom is the head of ICPC world final organizing committee. For the world final, he comes to Dhaka...
This Is Business
“Why brother why…?” “This is Business …” You have started a cupcake factory where two types of cupca...
Superman and the Buildings of Dahaka
To end the long-running feud between Superman and Goku fans regarding who's stronger, Zeron has deci...
Cent Savings
To host a regional contest like NWERC a lot of preparation is necessary: organizing rooms and comput...
DP Moderate 4/5/5
Perseus and The New Challenge
The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
Police Stations
Recently the government of country S is going to construct some police stations(possibly zero) in so...
Buckets of Water
In Abby's area the water is available in the tap only from 6AM to 8AM. So, Abby thought she would st...
Anina's Christmas Tree
This Christmas Anina and her friends have decided to make some Christmas trees to decorate her town....
Predict The Frequency
Luis was sleeping. He suddenly woke up with three positive integers N, M and X. He told his younger ...
Help IKRI
Ikri has a binary string s of length n. (each character of s is either 0 or 1) The weight of the bin...
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