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...
Watercolor
Bob is the owner of a shop named "Color Maker". He has 256 types of watercolor in his shop. The type...
City of Burgerland
Have you ever heard of The Burgerland City? The city is full of burger shops. You will surely find s...
Marks Crisis!!!
Rakib got the result of his previous English exam. But he did very poor in the exam, and went to his...
Spot It!
Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t...
Help Lazy Tareq
There is a boy named Tareq Abrar who is very lazy. He likes sleeping. He also likes eating. His moth...
The Story of Stringland
The king of Stringland is employing an elite force of undercover agents to protect the kingdom from ...
Poltu and Minimum Spanning Tree
Boltu gave a simple task to his best friend Poltu. You are a good programmer. So, Poltu hired you to...
The Multiplayer Action Game
Have you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action ...
Hizitizi's Array Cutting
Hizitizi is a new character in our story. In every episode, he gets a task to do from his imaginary ...
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 =...
Exists or Not Exists
You will be given some numbers. Then there will contain some queries. In every query there will be g...
Beauty Factor
Mehedi and Burhan are two friends. Yesterday they have participated in a class of sorting. Actually ...
Trust Me , You Can Solve It ;-)
Nafis Shahriar loves to do codeforces programming contests. He is the first candidate master in code...
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 ...
Be Like Hasib
Hasib, the famous programmer, uses a little game when he teaches Binary Search to his students. He r...
Mind Flayer Has Attacked Again!
Mind flayer, the shadow monster has attacked the town of Hawkins again. This time, the mind flayer h...
Straightforward
No gossip. In this problem I will just say what to do. Initially, you will be given a bracket sequen...
Bob's Dilemma
Alice and Bob have been playing a game on Android phone. It is a PVP game. They can play against eac...
Jenga Tower
Maybe you all are familiar with Jenga Game. "Jenga is played with 54 wooden blocks. Each block is th...
Sofdor Ali and Attack Optimization
Tuki and Jha is in the middle of an interplanetary war and their base is under drone attack! They ar...
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...
Dividing the Gifts
Today is a very good day in CSEmpur because Tuktuki has bought N gifts! Tuktuki wants to give these ...
Productive Employees
Congratulations on becoming the new boss of "Horizontal Company, branch: Sylhet"! But now you have a...
The Exceptional Artist
Irtiza is an extraordinary sketch artist. His obsession with perfection drives him to make every pix...
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