VMware SDE intern interview questions

Round 1: Contained MCQ’s and 1 coding question (easy). After this round, approximately 15 students were shortlisted. There were 2 tech Interviews,1 Hr,1 managerial Interview after round 1. Round 2(tech Interview): They asked 3 coding question. Given two trees tell if they are mirror images of each other or not. Find zig-zag order of Binary tree. Given a string group consecutive characters in the string and output in the form=> first char:last char.