### Problems by Labib666

#### A Game of Cards

Alice and Bob got bored and came up with a new game. They put N cards in a row on a table. The cards...

Moderate 5/11/108

#### Alice in Candyland

Alice came up with a new game. In this game called "Candy Quest", there is a NxN size 2D grid. In ea...

Moderate 14/26/80

#### Bakana

Given four positive integers \$N, a, b, M\$, find the value of \$GCD(N^a-1, N^b-1)\$ modulo \$M\$. Here, \$...

Moderate 22/43/110

#### Byang and The Grid Game

Byang has invented a game he wants to play with his soulmate Byangette during their spare time. The ...

Moderate 33/82/433

#### Gretchen and Strange Function

Gretchen loves experimenting with functions. She came up with an interesting function recently that ...

Moderate 9/15/110

#### Relocation Game

Tourist ( Gennady Korotkevich ) is a famous competitive programmer. He has won two ACM ICPC World Fi...

Moderate 13/25/93

#### Reverse The Magic

You are probably familiar with the technique of representing a Tree as an array of integers using Eu...

Moderate 49/70/383

#### Robin Sparkles

Robin Sparkle went to the mall one day. While shopping, she remembered that she has a homework due t...

#### Sofdor Ali and Bracket Sequence

Sofdor Ali has invented a new game. He asked his assistant Jong Bahadur ( who happens to be a monkey...

Moderate 22/40/171

#### Sofdor Ali Is in Love

Against all the odds, Sofdor Ali has fallen in love. He wishes to gift the girl the sweetest of subs...

Moderate 10/12/48

#### The Game of Rocks

Alice and Bob have come up with a new game. Bob gives Alice a NxM grid that contains N rows and M co...

#### The Perfect Collection

Given an array A of N integers, if we choose any K of these integers and calculate their bitwise XOR...

Moderate 38/61/238