AT&T TDP - Software Engineer I interview questions

There were 4 rounds of interviews and tool about 3 -4 weeks First was the OA Second HR call Third Technical Interview Fourth Behavorial Questions Each is about 30 mins to 60 mins long

Just took OA, might be the unluckiest person in the world. Basically got a upper leetcode medium (other variation labeled hard in lc), then a pure hard for question 2. Kudos to you if you can solve those in a hour, i was able to solve one. The SQL was also on the difficult as well.