National Flag

Today is the 16th December, a red letter day of our national history. The whole country equipped wit...

Geometry Forever

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

Big Factorials

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

N'th Prime

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

Sofdor Ali Got Mail!

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

Caesar Cipher

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

Treat Time

Labiba ma’am wants to give a treat to her favorite student Nafia. But as she now lives abroad, Labib...

Sofdor Ali's Magical Blackboard!

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

Be Like Hasib

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

GPA Calculator

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

Noman's Birthday

Today is our friend Noman’s birthday. For celebration of his birthday, we have already used n baloon...

BPL Mubarak!

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

The Depressed Guy

There is a guy named “Lucky” who is depressed now. His friend Jack knows why he is depressed. He ha...

What's your ID?

You must have heard the name of Metropolitan University. As soon as a student get admitted there, th...

Byang's Day Out!

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

Correct the Sieve

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

Pascal's Triangle

Given an integer N, print the sum of the Nth row of the Pascal’s triangle. In mathematics, Pascal’s...

Tidy Bits

Read an integer variable, and determine the smallest positive integer that has the same number of 1s...

ASCII Progress Bar

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

Nusrat's Treat

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

Identify The Level

Amin and Belal are two friends. Both have good knowledge about graph and tree in data structure part...

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...

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...

Incompatible Crops

Did you know that certain crops cannot grow next to each other? Given the layout of a field as a gri...

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...

Minions

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

Life of Decimals

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

Reverse Man

Monu mia is a reverse man! Never heard of reverse man? It means if you ask him to write something in...

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...

Dilu's Library

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

Mysterious Sum

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

Burger King

Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ...