Alternative Subsequence: The Extension
Recall that the sequence b is a subsequence of the sequence a, if b can be derived from a by removin...
Erik: The Candyboy - 1
Erik has N candies, and he wants to distribute those candies among his friends. But he has more frie...
Cent Savings
To host a regional contest like NWERC a lot of preparation is necessary: organizing rooms and comput...
DP Moderate 4/5/5
On My Way
One fine morning you discovered yourself standing in a maze. The maze can be considered a connected ...
Mr. Hikiko and a Strange Game (Hard)
Mr. Hikiko recently downloaded a strange game on his phone from a store. This game is quite interest...
Make Strings Great Again!
Do you know what is a sub-sequence? A sub-sequence is a sequence that can be derived from another se...
Hasinur's Mission!
Let me tell you something about Hasinur: He is a religious person. He prays 5 times a day. He loves...
Do You Know Tree ?
"Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh....
Ne-Zu-Ko Chaaaaaaaaaaaaan!
Tanjiro and his sister Nezuko live in a village that is shaped like a circle with a radius R. There'...
Demonic Subset
Lets not waste your time with long tiring problem statement and just go straight to the point. You a...
Divisible by 3
You will be given a string containing digits. You have to say the number of sub strings whose sum is...
A Girl Has No Name
"Joffrey... Cersei... Ilyn Payne... the Houn.." - Arya Stark Garden of Bones, Game of Thrones S02E04...
Easy
This problem is very easy. As my mood is not so good, I will not elaborate the statement unnecessari...
I Hate Combinatorics!
Rick and Morty are being hunted by the galactic government. They ran away to the cell dimension. The...
Maximum Sum
Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,...
Maximize Sum
You are given two integer arrays A and B of length n and m respectively. You can do the following op...
Game of Palindromes
In a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ...
Sofia
Sofia has just arrived in Bangladesh. Rather asking it some dumb questions, lets give it a maze prob...
Convert String Into Palindrome
A palindrome is a word, number, phrase, or other sequence of characters which reads the same backwar...
Memes vs. Social Media
In this era of modern technology social media is the most powerful weapon and the viral issue is the...
Mina and Raju
Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina...
Police Stations
Recently the government of country S is going to construct some police stations(possibly zero) in so...
The Perfect Collection
Given an array A of N integers, if we choose any K of these integers and calculate their bitwise XOR...
A Journey Towards One
Given N. You can perform 3 types of operations: Increase N by 1. Decrease N by 1. Divide N by 2, av...
Master Plan
Gakra Miah is a Wollywood movie lover. He watches movies almost everyday. He has watched so many mov...
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