Easy Factorial?
It is time to show your performance on number theory. Why so late? Come to the point. You are given...
Gifted
Mary is an intellectually gifted 7-year-old girl. On her first day at school, she impressed her math...
Easy Sequence 1
Let’s define an easy sequence F. Where: F(1)=1 F(2X)=F(X)2+1 F(2X+1)=F(X)×F(X+1)+2 Here X is a posit...
Doom of Mosquitoes
Jahid does not like to study. He loves to do other things during his study time. Killing mosquitoes ...
Interplanetary Mission
The National Space Center(NSC) is planning an interplanetary mission in a new galaxy far far away fr...
Broken Chain
Jahid loves Motorbikes. He really wants to have a bike of his own. So he requests his elder brother ...
Alien Invasion
Fisaow is a farmer. He has a large field covered with grass and wants to create some pattern or desi...
Gotta Print 'Em All
Gray has received N documents this morning and he wants to print as many of them as he can within hi...
Powerful Array
You are given an array A of N integers . Now you have to process Q queries in this array. Each query...
Shiku Gets Lucky
One day while playing, Shiku found a sequence of lowercase English letters. Shiku thought it might b...
Interesting Triplets (Easy)
Niko just learned about tree. Not those give us oxygen but tree from graph theory. After a while, he...
Sir From CSEmpur
Have you seen the monkey sticker set? Maybe not.But I am pretty sure you have seen it a lot if you e...
Perseus and The New Challenge
The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
Dividing the Gifts
Today is a very good day in CSEmpur because Tuktuki has bought N gifts! Tuktuki wants to give these ...
Reform A Substring
You are given a string s. You need to reform the string in such a way that there exists at least one...
OCD Returns!
This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o...
Clickbait
Clickbait is something (such as a headline) designed to make readers want to click on a hyperlink es...
No Need for Speed
Mr. Baker always wanted to be a race car driver. But failing to reach his dream goal, he started his...
National Flag
Today is the 16th December, a red letter day of our national history. The whole country equipped wit...
Jenia's Homework
Jenia is a very talented girl. She got homework from school. She is such a nerd who cries if she can...
Answer the Queries
Given an array of N elements, indexed from 0 to N−1. Now you are given some queries in the form [L,R...
Description is Pathetic
Do you know what is the hardest part of creating a problem? Thinking and writing the description. Yo...
Maze Ball Game
Your friend Yulianna Karaulova, likes to play maze ball game. You are going make a DIY project to bu...
Poltu the Legend
Serajnagar M. A. Pilot Model High School is situated at Raipura, Narsingdi, Bangladesh. This school ...
Biswa and Restaurant Business
After huge success in Borhani business, Biswa has recently started restaurant business. He’s got the...
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