Second Minimum Node In a Binary Tree | Leetcode 671 | Amazon Google Facebook interview question

Second Minimum Node In a Binary Tree - a top coding interview question asked in Amazon, google, Facebook and also from Leetcode easy list. Please subscribe to my channel and thank you so much for watching. Please provide feedback in comments below and let me know if I should any other topics as well 0:00 Introduction 0:25 Problem statement 1:49 Solution 5:54 Complexity 6:41 Conclusion Coding interview playlist - https://www.youtube.com/playlist?list=PL8Ctjqcyssq8R8fxpXA3yUUZTcX_kp-iS