Make It Big!
You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c...
Around the Square
You are given a square and there are four circles which are overlapping the square. The center of ea...
Permutations and Divisors
Let P be a permutation of length n where each value from 1 to n occurs exactly once. A subsequence o...
Maximum Among Divisors
Alice is thrilled about participating in the “Take-off Programming Contest Spring 2023”, but she rea...
Time to Prove
Your friend is participating in the "Take-off Programming Contest Spring 2023". This time, he wants ...
Fibonacci Between
Given two numbers L and R, you must print all the Fibonacci numbers between L and R (inclusive). Alt...
Ishtiaque and the Rabbit
Mr Ishtiaque is in trouble. A few months ago, he bought 2 rabbits. He wanted to have two pet rabbits...
Plant Trees, Save Life
There are n students in a school. Some of them are friends with each other. You want to make the sch...
Paranoid Trading
You have been newly appointed as the accountant of Michael Corleone - the famous mafia boss. Your ta...
I Love 0
Since childhood Abir loved to play with numbers, one day he was counting numbers from 1 to 100 and h...
Itsy's Magic Cards
Itsy needs your help with her magic cards. Her magic cards grant her special spider-witch powers. Un...
Buildings
There are n buildings in a row. The height of the i-th building is hi​. You have ৳k. It is the amoun...
Remove Duplicates
The problem is so simple. You are given a string and you have to remove all duplicate characters fro...
N Factorial!
I like short descriptions and I think you so too. Let's say you have a number, N. Now try to find th...
Mixed Fractions
Given an improper fraction (as the numerator $N$ and the denominator $D$), determine and print it in...
Keep Moving
Balurmath is a city which has N interesting tourist spots, which are connected between themselves by...
Maximum
Given N numbers, find the one that is of the highest value and print it.
Sorting
You will be given a string containing small letters and digits. You have to sort the letters and dig...
Subset Multiplication
In mathematics, especially in set theory, set A is a subset of set B, or equivalently B is a superse...
Find the primes?
For a positive integer n, let’s define a function f: f(n) = sum of positive integers less than n whi...
Khataraina is Back!
Last year we helped Adnan with his girlfriend Khataraina’s issue. This year she caused another troub...
War in the Wizarding World
There is a deadly war going on between two countries (Bitland and Byteland) in the wizarding world. ...
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...
The Wall
A long time ago in a galaxy far, far away, there lived two groups of people named Stormtroopers and ...
Perseus and The New Challenge
The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...
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