LeetCode 1002 | Find Common Characters | Python Min-Frequency Intersection | AlgoYogi

Welcome to AlgoYogi! 🚀 Start Your Smart Coding Prep at 👉 https://algoyogi.io We solve LeetCode 1002: Find Common Characters using Python and a clean frequency-intersection idea. Goal: given an array of lowercase words, return all characters that appear in every word (with multiplicity). Approach: - Build a frequency count for the first word. - For each next word, take the elementwise minimum with its frequency count. - Expand the final counts back into a list of characters. 👉 Problem Link: https://leetcode.com/problems/find-common-characters/ --- ### ⏱ Timestamps 0:00 Introduction 0:20 Problem Statement 0:50 Min-Frequency Intersection 14:00 Python Code Walkthrough 20:00 Time & Space Complexity --- ### 💡 Why Watch? - Elegant intersection-by-counts pattern for strings - Linear in total characters, constant alphabet size - Interview-friendly and easy to reason about #LeetCode #FindCommonCharacters #Python #AlgoYogi #Counting #HashMap