LeetCode 2460 | Number of Senior Citizens | Python Date String Check | AlgoYogi

Welcome to AlgoYogi! 🚀 Start Your Smart Coding Prep at 👉 https://algoyogi.io We solve **LeetCode 2460: Number of Senior Citizens** using Python by parsing date strings. Problem: You get an array of strings `details`, each in the format "name|age|…", where age is the year of birth. Return how many people are age 60 or older as of 2020-01-01. Approach: - For each entry, split by '|', parse the birth year from the date string. - Compute age = 2020 − birth_year. - If age ≥ 60, increment count. - Return total count. 👉 Problem Link: https://leetcode.com/problems/number-of-senior-citizens/description/ --- ### ⏱ Timestamps 0:00 Introduction 0:20 Problem Statement 0:40 String Parsing Approach 3:00 Python Code Walkthrough 5:00 Time & Space Complexity --- ### 💡 Why Watch? - Simple parsing and arithmetic—great warm-up problem - Clean O(n) time with fixed-size splits and integers - Focuses on string formats and splitting logic #LeetCode #NumberOfSeniorCitizens #Python #AlgoYogi #StringParsing