Eet Izz Phet!
A long long time ago, I left the country that was my home and with my head full of brains and shoes ...
Be Like Hasib
Hasib, the famous programmer, uses a little game when he teaches Binary Search to his students. He r...
Kitorp and His Love
Kitorp loves his wife Asiar(who is a problem solver as well) but he loves math more. To get his atte...
Average the Array
You are given an array A of length N. You have to choose a subset S from given array A, such that av...
Ice-Cream of Montu Mia Again!
Montu Mia is a student of “Omok School”. He likes to eat an ice-cream every day. But he also likes t...
Easy Sequence 1
Let’s define an easy sequence F. Where F(1)=1 F(1) = 1 F(1)=1 F(2X)=F(X)2+1 F(2X) = F(X)^2 + 1 F(2X)...
An Obvious Interactive Problem
I pick a number. You guess it. You can guess at most 25 times. For every guess you make, I will tell...
Trust Me , You Can Solve It ;-)
Nafis Shahriar loves to do codeforces programming contests. He is the first candidate master in code...
The Story of Stringland
The king of Stringland is employing an elite force of undercover agents to protect the kingdom from ...
Master Plan
Gakra Miah is a Wollywood movie lover. He watches movies almost everyday. He has watched so many mov...
Most Difficult Problem Ever
You are given a function like below: long long F(int A, int B, int C, long long x) { long long res =...
Complex Operations
You are given an array A of length N. You have to perform two different types of operations. In the ...
Spot It!
Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t...
Poltu and Interesting Number
Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere...
The Multiplayer Action Game
Have you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action ...
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, ...
XOR Partition
Neo has a hidden array A of n integers where 0 ≤ Ai ≤ 109 is satisfied for each i from 1 to n . You ...
M-Sequence
A sequence is called M-sequence if after removing zero or more elements from the sequence the GCD of...
Largest Prime
A positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...
Lucky Shirt
Marjokes is a very famous comedy personality in Byteland. He is a poet, a writer, a singer and an ac...
Jenga Tower
Maybe you all are familiar with Jenga Game. "Jenga is played with 54 wooden blocks. Each block ...
N Cities
In a country there are NNN cities numbered from 111 to NNN. To Travel along the cities there are tot...
Watercolor
Bob is the owner of a shop named "Color Maker". He has 256 types of watercolor in his shop...
Buildings
There are n buildings in a row. The height of the i'th building is hi. You have ৳k. It is the amount...
Balanced Relief
Thanos just finished his relief work. We all know that Thanos loves balanced things. So he finds som...
Toph uses cookies. By continuing you agree to our Cookie Policy.