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... |
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... |