What is Map Data Structure
In the world of computer science and programming, data structures play a fundamental role in organizing and manipulating data efficiently. One such essential data structure is the Map. A Map,...
Difference between Hashmap and Hashtable
In Java, HashMap and Hashtable are two commonly used data structures for storing and retrieving key-value pairs. Both data structures implement the Map interface and provide similar functionality, but there...
Print first Non-repeating character in a string
Concepts Used: Hashing. Difficulty Level: Easy. Problem Statement : You are given a string str consisting of lowercase Latin letters. Find the first non-repeating character in str. Note: You have...
Majority Votes
CONCEPTS USED: Hashing DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array of size N, which contains the voting ID's of students that have stood up for the elections for class...
Smallest Number
CONCEPTS USED: Hashing DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an array A with N integers and an integer K, print the smallest number in the array which occurs exactly K...