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...
Knapsack
You have a backpack that can carry a maximum weight of C. You will also be given a set of items, the...
DP Moderate 20/29/69
Help Chokro
Pias and Chokro are good friends. Pias's birthday is coming soon. So, Chokro wants to gift Pias an a...
Happiness
If you have a Tk 100 in your wallet, what would you do? You might have couple of ways to spend that ...
Make It Big!
You are given a number N (10 ≤ N ≤ 2×109). You have to perform exactly two swap operation. You can c...
Game of Palindromes
In a popular computer game, Game of Palindromes also known as GOP there is a city called Palindesh. ...
I Hate Combinatorics!
Rick and Morty are being hunted by the galactic government. They ran away to the cell dimension. The...
Find NSUPS
Given a string s, find the number of subsequence in s which forms the word "NSUPS". A subsequence is...
Burger King
Every day, more than 11 million guests visit BURGER KING® restaurants around the world. And they do ...
LIDS
We all know about LIS (Longest Increasing Sub sequence). The task to find the length of the longest ...
Third Dimension
Mr. J wants to learn about combinatorics. He started reading a book on combinatorics and came across...
Video Game
Shefin is playing a game. In this game there are N buildings numbered from 1 to N. Each building has...
My Small Number
You are given two integers N and M. Find another integer X divisible by M that has the same number o...
Harry Potter and the Vault of Gringotts
"There was a break-in of Gringotts Wizarding Bank on 1 May, 1998, during the height of the Second Wi...
Gaaner Koli
The protagonists of this problem are two great programmers of a certain institution Omanush and Ordi...
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...
OCD Returns!
This problem author has OCD (obsessive–compulsive disorder). One day his teacher gave him an array o...
The Perfect Collection
Given an array A of N integers, if we choose any K of these integers and calculate their bitwise XOR...
Subarray Sum
You are given an array having N integers. You have to select at most K positions in the array and re...
Maximum Sum
Little Jimmy loves to play with numbers. One day he was playing with a number sequence. In his game,...
Sticking Pins
You are sticking pins on a 2D board at N given coordinates. However, since you are not very good at ...
Very Dirty String
Strings are difficult, most of the contest programmers say this and try to avoid string algorithms. ...
Orchid Division
Quido has a square orchard full of various fruit and nut trees. The trees are planted in regular row...
Smart Feature Phone 2
Alice worked in CIA. Right now he need to send an encrypted message to the headquarter(HQ) of CIA. ...
Counting Murgis
Ever since that wicked thief took away some of her murgis (hens, that is), Meena was ever anxious th...
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