LeetCode 242 | Valid Anagram | C++ Explained
Автор: Compile With Priya
Загружено: 2026-01-01
Просмотров: 17
LeetCode 242: Valid Anagram – complete explanation in C++.
In this video, I explain how to solve the Valid Anagram problem step by step using C++, focusing on interview thinking and efficient approaches.
You’ll learn:
How to check if two strings are anagrams
Frequency counting approach using hash map
Sorting-based approach comparison
Edge cases interviewers look for
Complete C++ implementation
Time and space complexity analysis
Problem Link:
https://leetcode.com/problems/valid-a...
Timestamps:
00:00 Introduction & Problem Explanation
00:17 Example Walkthrough
02:34 Sorting Approach
03:29 Frequency Count Approach (Optimal)
05:27 Core Logic & Snippet Walkthrough
09:30 C++ Implementation
10:22 Code Execution & Output
Approaches Covered:
1) Frequency count using hash map / array
2) Sorting approach
Time Complexity:
Frequency method: O(n)
Sorting method: O(n log n)
Space Complexity: O(1) / O(n)
This is a very common string interview question asked in coding interviews.
This video is useful for:
LeetCode beginners
String problems
Hash map interview questions
DSA interview preparation
C++ coding interviews
FAANG interview preparation
Subscribe for clear explanations of LeetCode problems and interview-focused C++ solutions.
#leetcode #leetcode242 #validanagram #string #c++
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