Arya’s Counting

Little Arya has learnt to count the highest and the lowest number recently. She can easily find out ...

The Bachelor's Problem

Jony lives in a “Bachelor’s house” with some of his friends. You may assume it as a hostel but it do...

Big Factorials

Given an integer N, print the trailing 4 digits of $N!$ (N factorial). \$ N! = N \times (N-1) \tim...

Sofdor Ali Got Mail!

Sofdor Ali, the greatest scientist of Bangladesh, has countless fans. But no one is as close to him ...

Be Like Hasib

Hasib, the famous programmer, uses a little game when he teaches Binary Search to his students. He r...

N'th Prime

In this problem, you will have to print the nth prime number. The first few prime numbers are given ...

Sofdor Ali's Magical Blackboard!

Sofdor Ali found interest in mathematics very early in his life. And now, he wants to spread this in...

GPA Calculator

Shibli is a very good student. He is very regular and attentive in his classes. He is very serious a...

Life of Decimals

Given any circle, if you divide the circumference of that circle with its diameter, you would always...

Geometry Forever

Fear no more, this is a problem of geometry! When Moyna was little, he had a math teacher named Shu...

Alayna and Vowels

Alayna loves playing. Every night before going to sleep, she plays different games with Baba. Now Al...

Byang's Day Out!

Byang and his little brother Kuno loves Cricket. But they never went to the stadium to watch a match...

Minions

Kevin, Stuart and Bob are Minions. They were always in search of a master who is the best criminal i...

BPL Mubarak!

Bangladesh Premier League is in Sylhet for the first time. Today’s match is Sylhet Sixers vs the Dha...

Simple Operation

Mr. X is a school teacher. He teaches C programming to the students. In every class, he gives some s...

Mysterious Sum

Sohel vai reads newspaper every morning. The newspaper he reads contains some good features includin...

I Did Not Do the Assignment

Professor Petr is very angry over some of his students now-a-days for not doing assignment. He wants...

Heavy Alphabet

Lily’s father lives in Canada. He comes once in a year. But she thinks everyday about her father. Sh...

Nusrat's Treat

We all know how much Nusrat loves chocolate! She gets a lot of chocolate from her friends and family...

Alice and the Chessboard

It’s Sunday afternoon, and Alice is in her room trying to figure out the rules of the game called Ch...

Old Magic!

You: Guess an integer number, but don’t tell me. Your friend: Okay! You: Now multiply it by 3. Your...

Caesar Cipher

Byang wants to write a secret message to his friend. He has recently discovered Caesar Cipher. Caes...

Ice-cream of Montu Mia

Montu Mia is a student of “Omok School”. He likes to eat an icecream everyday. But he also likes to ...

#Hashtag

Giving Hashtag in Social Network is very popular now a day. But Poltu is very new in Social Network....

Genius Needs Help

You all know Emrul bhai, right? He is a genius guy. He knows how to add two integer numbers and so d...

Alayna recently went on her first adventure journey to Dumbulla Safari Park. She enjoyed the bumpy r...

The Titan

The Titan, a giant ship started its journey on the dark sea. It was going to the North America. On ...

ASCII Progress Bar

In this problem, you need to write a code that prints an ASCII progress bar. In each test case, you ...

Counting the Counts

Salam is a school teacher. He takes ICT of class 8th. The head of the school wants to know how many ...

Dilu's Library

Dilu is a young boy who loves mathematics. He recently learned how to code. He was interested in sol...

Correct the Sieve

Sieve of Eratosthenes is a fast algorithm for finding prime numbers in larger ranges. According to W...

Alayna and Strings

Alayna’s father Baba gifted her a nice alphabet book last month. And now Alayna is in love with alph...