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...
LIDS
We all know about LIS (Longest Increasing Sub sequence). The task to find the length of the longest ...
Burger King
Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ...
Happiness
If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ...
Counting Murgis
Ever since that wicked thief took away some of her murgis (hens, that is), Meena was ever anxious th...
A Journey Towards One
Given N. You can perform 3 types of operations: Increase N by 1. Decrease N by 1. Divide N by 2, av...
Convert String Into Palindrome
A palindrome is a word, number, phrase, or other sequence of characters which reads the same backwar...
Make It Big!
You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c...
Penguins of Madagascar
One day the penguins of Madagascar found a string S... Wait... Wait. Actually the setter of the prob...
COVID-19 Outbreak
COVID-19 outbreak in Atlantis is so bad that the government is forced to lock down the whole country...
Easy Sequence 2
Let’s define a easy sequence F. Where $ F(1) = 1 $ $ F(2X) = F(X)^2 + 1 $ $ F(2X+1) = F(X) \times F(...
Subarray Sum
You are given an array having N integers. You have to select at most K positions in the array and re...
Is This a Give-Away?
Once there lived an ancient mage named Farabi. He could always give perfect weather forecast. He nev...
I Hate Combinatorics!
Rick and Morty are being hunted by the galactic government. They ran away to the cell dimension. The...
Third Dimension
Mr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across...
Find NSUPS
Given a string s, find the number of subsequence in s which forms the word "NSUPS". A subsequence is...
Divisible by 3
You will be given a string containing digits. You have to say the number of sub strings whose sum is...
Help Chokro
Pias and Chokro are good friends. Pias's birthday is coming soon. So, Chokro wants to gift Pias an a...
Maximum Sum
Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,...
Train Hijack
You and your friend Daneliya Tuleshova are planning to hijack a train. Your friend will go inside a...
Video Game
Shefin is playing a game. In this game there are N buildings numbered from 1 to N. Each building has...
MSIS!
Do you know what MSIS is? MSIS is the abbreviation for Maximum Sum Increasing Subsequence. It is a s...
Unique Relief
Thanos has now figured out how to visit all the houses in the flood-affected area. However, now he h...
Knapsack
You have a backpack that can carry a maximum weight of C. You will also be given a set of items, the...
DP Very Easy 75/94/231
Messy Table
Akib is a very good student but his reading table is very messy. One Friday afternoon, Akib is sitti...
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