Data Structure Problems
Tree Queries You are given a tree of n vertices. Each vertex contains an integer. Vertex 1 is the root of the tre... |
Palindrome Query I You are given a string of length L. You have Q queries. In each query, you will be asked to either u... |
MEXimum Let’s get straight to the point. You are given a tree. In the tree, each node u has a number au ass... |
C++ Vector Simulation Array is an important data structure in computer science. It is also very important when it comes fo... |
Mr. Hikiko and a Strange Game (Hard) Mr. Hikiko recently downloaded a strange game on his phone from a store. This game is quite interest... |
Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |
Find the Good Sequence Let's say two numbers are called "good" if their difference is at least 2. Similarly, a sequence is ... |
Mad Engineer Aksir Can you imagine? Mad Engineer Aksir finally got the job. His job is to set up toggle switch for a se... |
Explosion There is a house named Larcana. It is a very weird house. There are exactly N rooms in total and bet... |
Poltu and Graph Poltu has got a graph with N nodes and M edges. Every edge has a weight. There can be multiple edges... |
Maintain the Queue “Ajob Desh” is a strange country. Anyone who wants to buy train tickets need to go to the railway st... |
Memes vs. Social Media In this era of modern technology social media is the most powerful weapon and the viral issue is the... |
Police Stations Recently the government of country S is going to construct some police stations(possibly zero) in so... |
City of Atlantis Have you ever heard of The Atlantis City? It’s a Greek mythological city. Its existence doesn’t matt... |
A Super Easy Problem - "Array Query" Let's get into the problem directly without much description this time :D . You are given an array A... |
Easy Peasy, Lemon Squeezy Let's consider an array A which is initially empty. We'll perform two types of operation on that arr... |
Cut the Rope Fahim is a rope seller. He has a special tool for cutting ropes. But recently this tool is behaving ... |
XOR Tree You are given a tree with N vertices. A tree is a connected undirected graph without cycles. The tre... |
Not As Hard As It Seems Sakib and Shamim are good friends. As Sakib is a little naughty, every night before exam he disturbs... |
United State of Koanhali Koanhali is a strange country. The govt. of Koanhali maintain the marriages of this country. If you ... |
Going Round in Circles You are given an array of non-negative integers of length n. You have to perform two types of operat... |
Distinctness A substring of string S is another string S' which occurs in string S. For example: S = aaba and one... |
Productive Employees Congratulations on becoming the new boss of "Horizontal Company, branch: Sylhet"! But now you have a... |
Crayons Five friends A, B, C, D and E has come to a shop to buy crayons for their art project. They need cra... |
City of Burgerland Have you ever heard of The Burgerland City? The city is full of burger shops. You will surely find s... |
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