Trina Loves Mangoes
Trina loves mangoes. And she is a valuable member of the famous Mango Eaters Community. This communi...
ovis96 Very Easy 8/13/57
Help Dr. Wu
Dr. Wu is going to organize a competition. He has decided to judge the participants using an automat...
Lucky Number Seven
People often consider the number 7 as lucky. “But why?” - you might ask. Well, consider the fact tha...
Matrix Resurrection
We have a two-dimensional matrix consisting of N rows and M columns. The rows are numbered from 1 to...
XOR-Gun
YouKn0wWho has an integer sequence a1​,a2​,…,an​. He will perform the following operation until the ...
Give Me My Vector
I am in a hurry. I have n 2D vectors. And I have created all possible subsets of these n vectors. Fo...
upobir Moderate 3/5/42
Odd Query
A subsequence is a sequence that can be derived from the given sequence by deleting zero or more ele...
Once Upon a Time in Dhaka
Dhaka is one of the mega cities of Bangladesh. At different times, Dhaka was entitled differently by...
Old Wives' Game
Kadambari wants to test the brains of the new bride Mrinalini. So she proposed the infamous Old Wive...
Bi-Element Subsequence
You are participating in a game show. In the final round, the host pulls up a large sequence of posi...
Ator Ali's Income
Ator Ali loves to make money. He does not care whether his source of income is good or evil. As his ...
Car Selection
Alice and Bob are two friends. They want to buy two cars, one for Alice and one for Bob. That's why ...
The Feast
Nafia and Shishir like to feed pets. Today, Nafia has m chocolates and Shishir has m cakes for some ...
Water
Dhoni has 3 types of water bottles. He has exactly a bottles of volume 0.5 liters, b bottles of volu...
Yet Another Hello World
The greatest company, Pied Piper, is developing encryption systems. The company has already built Md...
Collectors Problem
The Bat club controls Gotham City. They decided to bring equality to the city (Of course, with some ...
Who Doesn't Love Shorter Strings?
I hope you are not someone who hates longer strings, or fears longer strings like me. Strings can be...
Reyad18 Moderate 3/4/7
GoG
Alice and Bob are playing GoG. GoG is a two-player board game. It consists of a grid with n rows and...
And... Yet Another AND Problem
YouKn0wWho has an integer n. He wants to find an integer sequence a of size exactly 2n such that 0≤a...
GPU-Business
You are a businessman who is fond of Vinia GPU. You buy Vinia GPUs from Byteland and sell them to Bi...
Cheap Tourist
The country of Byteland is divided into N provinces numbered from 1 to N. The provinces are connecte...
Crossword Puzzle II
A crossword puzzle consists of an MxN grid with M rows and N columns. Initially, some of the squares...
zobayer Moderate 3/3/3
Sum Game
Rakib loves to play with words and numbers. Currently He invented a game where he wrote down some wo...
DVD Rental Store
You are the owner of a DVD rental store. There are N customers who want to rent a DVD of ‘The Matrix...
zobayer Moderate 4/4/4
Golden Cycle
Mr. Xu is a student of CSE who is very curious in graph theory. In past years he solved different ty...
zobayer Moderate 3/5/7
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