DataStructure Problems

Montu Mia is a student of “Omok School”. He likes to eat an ice-cream every day. But he also likes t...

Raiyan13 BinarySearch, DataStructure Moderate 101/147/521

Given a sequence of opening and closing parentheses ("(" and ")") you will have ...

DataStructure, Implementation Moderate 657/804/2k

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

DataStructure Moderate 762/888/2k

Five friends A, B, C, D and E has come to a shop to buy crayons for their art project. They need cra...

DataStructure, FenwickTree, MOSAlgorithm, SegmentTree Hard 34/53/200

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

forthright48 DataStructure Moderate 25/52/184

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

Labib666 DataStructure, SuffixStructure Moderate 22/40/171

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

TarifEzaz DataStructure Moderate 87/143/311

You are given an array of NNN integers. Then there will be QQQ commands of the following type: Cha...

faiyaz26 DataStructure, MOSAlgorithm, SegmentTree Hard 57/108/898

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 23/31/91

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

DataStructure Hard 6/14/72

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

Constructive, DataStructure Hard 29/36/120

A substring of string S is another string S' which occurs in string S. For example: S = aaba and one...

raihatneloy DataStructure, String, SuffixStructure Moderate 45/143/417

"Clarity-Lon" is the new awesome e-commerce based startup that went to the top of the char...

Kryptonyte DataStructure Moderate 17/20/173

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

flash_7 DataStructure, WaveletTree Hard 36/42/206

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

MosharrafOshy DataStructure Hard 5/39/144

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

nfssdq DFS, DataStructure, Graph Hard 17/31/248

“Ajob Desh” is a strange country. Anyone who wants to buy train tickets need to go to the railway st...

biqarboy DataStructure Hard 39/72/407

You will be given a set of sequences. Each sequence is a list of numbers. Two sequences are K-simila...

ridowan007 Combinatorics, Counting, DataStructure Hard 19/27/302

The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan...

farsid.buet Constructive, DP, DataStructure Hard 3/4/11

The world of Mario can be imagined as 2D grid of NNN rows and MMM columns--containing a total of N×M...

moinul.shaon DataStructure Moderate 33/52/226

We see agent Bond once again being called in time of a great need. The vile criminal Auric Goldfinge...

kaysar59 DataStructure Moderate 30/33/107

Bit operators perform bit-wise operations between two binary numbers. Wikipedia says, binary operati...

DataStructure Moderate 49/68/255

Most houses are not as safe as they could be. Earthquake engineering is an interdisciplinary branch ...

hasan169 DataStructure Moderate 13/15/21

Minas is working on his new language. He want to add a feature call expandable listview. Here he exp...

DataStructure Moderate 9/10/19

The new year 2017 is here. To celebrate the 31st night, Mr Rio has thrown a big party at his house. ...

flash_7 DataStructure, String, Trie Hard 17/26/154