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Learn how to count characters in a word using HashMap in Kotlin. This is a very common coding interview question asked in ...

Optimized Approach: We store each number in a HashMap and check if target - currentElement exists in the map. This allows us ...

coding #leetcode #HashMap #hashtable #strings #string #C #cplusplus.

PROBLEM DESCRIPTION* Given head, the head of a linked list, determine if the linked list has a cycle in it. Return true _if there is ...

In this video, we solve real Java 8 interview questions asked in Hexaware. ✓ Sort a HashMap by values in descending order ...

DSA Phase-2 Arrays and Strings tutorial focusing on Frequency Count using Hash Map or Object. In this video you will learn what ...

In this video, we solve LeetCode 1748 – Sum of Unique Elements using a clean and efficient HashMap / frequency-count ...

GeeksforGeeks Problem of the Day – Longest Subarray with Sum K In today's GFG POTD, we solve one of the most important ...

Isomorphic Strings GFG | LeetCode 205 | Full solution using a HashMap | Easy to understand Github Solution ...

In this video, we solve the Longest Subarray with Majority Greater than K problem using an efficient Prefix Sum and HashMap ...

In this video, we solve the Isomorphic Strings problem from GeeksforGeeks using a simple and interview-friendly approach.

Learn how to solve LeetCode Two Sum (#1) in C# and Java! In this video, we walk through two of the most popular languages for ...

In this video, we break down the Valid Anagram (LeetCode Q13/100) problem in the simplest possible Hindi explanation with a ...

In this video, we solve LeetCode 2032 – Two Out of Three using an efficient approach with HashSet and HashMap in Java.

Are you still guessing the time complexity of Java Collections in interviews? Stop. In this video, we deeply understand the real time ...

This playlist contains the most important Java 8 Stream API interview questions and coding programs asked in real Java ...

In this video, I solve the "Find the Difference" LeetCode problem using Java. Problem link: ...

Rust scalar data types with a complete, practical breakdown of integers, floats, booleans, and characters. Learn how Rust handles ...

In this video, I solve the Two Sum problem (LeetCode 1) in Java using a clean and optimized approach, with a live LeetCode ...