Black or White
Imagine an infinite chess board. The cell on the bottom-left most corner is labelled (0,0). The cell...
Why Don't You Guys Believe Him?
My friend, Qbaidul recently claimed again that he is stronger than a Yeti. But this time no one beli...
I Love 0
Since childhood Abir loved to play with numbers, one day he was counting numbers from 1 to 100 and h...
Easy Summation
Little Arya is growing up fast and now she can count the numbers. The problem with her counting is t...
The Wonder Equation 2
Today we will tell you the story of a Prince, Charles, Prince of the Herroku island. He was trained ...
Window Seats on a Bus
Karim is traveling by bus. He has the window seat. However, he has to share the window with the pass...
Flash in Trouble!
There is no doubt that Flash is the “Fastest Man Alive”. But now flash is facing a problem for the o...
BigNumSum
You will be given two numbers of 40 digits each. You will have to print the summation of these two n...
The Haunted House
One night, a group of friends decided to take a stroll through the forest. Suddenly they realized th...
Absolute U
Do you know about absolute value function? In mathematics, the absolute value of a real number u, de...
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...
Kinderbijslag
Kinderbijslag (children's allowance) is a social security payment which is distributed to the parent...
Math Very Easy 320/341/597
GCD and LCM
You will be given two integers A, B. If A × B (product of A and B) is equal to LCM(A, B) then you ha...
Event Timing
Bob is making a new application for Android phones. Front-end of his app has a button like this: Whe...
Weather Report
Santu is a newcomer in Rangpur. He is having trouble adjusting with the strange weather of Rangpur. ...
Meena O Rajur Boring Class
One day, the teacher in Meena and Raju's school was teaching the students about Fibonacci numbers. T...
Poltu and Odd Number
Today is Poltu’ first C programming class. And, he needs your help with a programming task. Given tw...
Roll the Dice
You have got a 6 sided dice. In a single roll, it may show any integers from 1 to 6. You are going t...
Magic Moments
You are going to a village by bus. You need k hours to do an important task while your bus journey w...
Life of Phi
The Great Khami is learning Number Theory. He is very excited to know that Euler's Totient Function ...
45th ICPC Unsolved Problem!
ICPC is the oldest, largest, and most prestigious programming contest in the world. Each year, the I...
Irregular Is Tough, Regular Is Easy!
Dr. Bari is working on some chemical formation. He believes that chemicals and shapes that are regul...
In Search of a Friend
Rafi lives in a 2D space. He wants to participate in the “Take-off Programming Contest Spring 2023” ...
Colorful Friendship
N friends are playing a game. N−1 of them have seated circling one person. So, there are N−1 adjacen...
Corona Virus Attacked Kittuk
A large number of people are being infected with the Corona virus in Kittuk country. In that situati...
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