Google Software Engineer Internship interview questions

Was given two coding questions, pretty much straight from leetcode but some changes The first was something like a n array problem the second was deserialize Binary Tree and change some value in the string form I did ok but there could have been more effective solutions Overall pretty chill interview

Applied normally and did not hear back for almost 3 months. Then, received Coding Challenge followed by 2 technical 45 minute interviews. Then came host match before moving to offer.