DataStructure Problems

Liakot, the king of Cox’s Bazar, is currently in a dire situation. His own younger sister Ayesha is ...

• By Zeronfinity
• DataStructure
• Moderate
• 5/5 Solutions
• 45 Submissions

Consider an array of ‘N’ integers which is indexed from ‘1’ to ‘N’. Exactly ‘Q’ queries numbered fro...

• By mazedrupok
• DataStructure
• Moderate
• 16/30 Solutions
• 159 Submissions

Given two sets of integers, print the set containing the union of the two input sets. For example, g...

• DataStructure
• Moderate
• 535/630 Solutions
• 1651 Submissions
• uDebug

Sakib and Shamim are good friends. As Sakib is a little naughty, every night before exam he disturbs...

• By Amateur
• DataStructure, Stack
• Moderate
• 15/32 Solutions
• 91 Submissions

Let’s consider an array A which is initially empty. We’ll perform two types of operation on that arr...

• By moshiur_cse15
• DataStructure
• Moderate
• 54/98 Solutions
• 520 Submissions

Have you ever heard of The Burgerland City? The city is full of burger shops. You will surely find s...

• By emrul_mu
• BinarySearch, DataStructure, MergeSortTree
• Moderate
• 50/90 Solutions
• 318 Submissions

You are given an array having N integers. You have to select at most K positions in the array and re...

• By bertho_coder
• DP, DataStructure
• Moderate
• 90/144 Solutions
• 621 Submissions
• uDebug

The operations that are performed in a data structure can be categorized into two types: query and u...

• By TarifEzaz
• DataStructure
• Moderate
• 72/123 Solutions
• 276 Submissions
• uDebug

Let’s get straight into the problem. In ths problem, here will be multiple test cases. In each test ...

• By Hasinur_
• DataStructure, NumberTheory
• Moderate
• 70/103 Solutions
• 408 Submissions

You are given a string S (of length n) consisting of alphabets only. You need to perform m queries o...

• By emrul_mu
• DataStructure, FenwickTree, SegmentTree
• Moderate
• 85/94 Solutions
• 256 Submissions

Byang is learning about War Tactics from Raat, a famous martial arts master, who has successfully tr...

• By forthright48
• DataStructure
• Moderate
• 22/49 Solutions
• 168 Submissions
• uDebug

Sofdor Ali has invented a new game. He asked his assistant Jong Bahadur ( who happens to be a monkey...

• By Labib666
• DataStructure, SuffixStructure
• Moderate
• 19/37 Solutions
• 162 Submissions
• uDebug

You are given an array of N integers. Then there will be Q commands of the following type: 1) Change...

• By faiyaz26
• DataStructure, MOSAlgorithm, SegmentTree
• Moderate
• 43/83 Solutions
• 654 Submissions
• uDebug

You are given an array A of N integers A1, A2, A3, …, AN . If we select two indices (1 ≤ i ≤ j ≤ N) ...

• DataStructure, SuffixStructure
• Moderate
• 19/28 Solutions
• 85 Submissions
• uDebug

You are given an array of N elements. Initially all the indices have a value of 0. You have to do fo...

• DataStructure
• Moderate
• 5/13 Solutions
• 67 Submissions
• uDebug

A device ID is a distinct number associated with a smartphone or similar handheld device. Every smar...

• Constructive, DataStructure
• Moderate
• 29/35 Solutions
• 119 Submissions
• uDebug

“Clarity-Lon” is the new awesome e-commerce based startup that went to the top of the chart within f...

• By Kryptonyte
• DataStructure
• Moderate
• 16/19 Solutions
• 171 Submissions
• uDebug

One day Rio was returning home from his university and unfortunately lost his phone on the way. He a...

• By flash_7
• DataStructure, WaveletTree
• Moderate
• 32/37 Solutions
• 185 Submissions
• uDebug

Mr. X is an “array pagla” person. He loves doing different types of things with arrays. Today Mr. X ...

• By MosharrafOshy
• DataStructure
• Moderate
• 4/38 Solutions
• 142 Submissions
• uDebug

There are N houses in a village far away from here. They are numbered from 1 to N. For this problem ...

• By nfssdq
• DFS, DataStructure, Graph
• Moderate
• 20/39 Solutions
• 241 Submissions
• uDebug