Exists or Not Exists
You will be given some numbers. Then there will contain some queries. In every query there will be g...
Largest Prime
A positive integer number n is called a prime number, if it is only divisible by 1 and n itself, whe...
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...
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...
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...
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...
Angels and Demons
You are walking at midnight along a road that has N checkpoints numbered from 1 to N from left to ri...
Penguins of Madagascar
One day the penguins of Madagascar found a string S... Wait... Wait. Actually the setter of the prob...
Complex Operations
You are given an array A of length N. You have to perform two different types of operations. In the ...
Master Plan
Gakra Miah is a Wollywood movie lover. He watches movies almost everyday. He has watched so many mov...
Poltu and Interesting Number
Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere...
I Scream, You Scream!
Meem loves ice cream cones. So much so that she created an ice cream stand to share the joy of ice c...
Spot It!
Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t...
The Story of Stringland
The king of Stringland is employing an elite force of undercover agents to protect the kingdom from ...
The Multiplayer Action Game
Have you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action ...
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 =...
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,R...
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 ...
Lucky Shirt
Marjokes is a very famous comedy personality in Byteland. He is a poet, a writer, a singer and an ac...
M-Sequence
A sequence is called M-sequence if after removing zero or more elements from the sequence the GCD of...
Jenga Tower
Maybe you all are familiar with Jenga Game. "Jenga is played with 54 wooden blocks. Each block is th...
N Cities
In a country there are N cities numbered from 1 to N. To Travel along the cities there are total N b...
Buildings
There are n buildings in a row. The height of the i-th building is hi​. You have ৳k. It is the amoun...
Balanced Relief
Thanos just finished his relief work. We all know that Thanos loves balanced things. So he finds som...
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