Penguins of Madagascar

One day Penguins of Madagascar found a string S …. wait…. wait. Actually the setter of the problem d...

Trust Me , You Can Solve It ;-)

Nafis Shahriar loves to do codeforces programming contests. He is the first candidate master in code...

Exist or not exist

You will be given some numbers. Then there will contain some queries. In every query there will be g...

Be Like Hasib

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

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...

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, ...

Watercolor

Bob is the owner of a shop named “Color Maker”. He has 256 types of watercolor in his shop. The type...

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...

Complex Operations

You are given an array A of length N. You have to perform two different types of operations. In the ...

Making Football Teams!!!

There are N football teams and each team has positive number of players. You are given Q queries. Q...

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...

The Multiplayer Action Game

Have you played the game Agar.io? According to wikipedia, Agar.io is a massively multiplayer action ...

Spot It!

Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t...

Lucky Shirt

Marjokes is a very famous comedy personality in Byteland. He is a poet, a writer, a singer and an ac...

Balanced Relief

Thanos just finished his relief work. We all know that Thanos loves balanced things. So he finds som...

Buildings

There are n buildings in a row. The height of the i’th building is hi. You have ৳k. It is the amount...

Mind Flayer Has Attacked Again!

Mind flayer, the shadow monster has attacked the town of Hawkins again. This time, the mind flayer h...

Poltu and Interesting Number

Poltu Loves interesting number. So he wants to find this type of number. The definition of an intere...

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 =...

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 ...