Amazon SDE-1 interview questions

A phone call from recruiter that lasted 15min. Talked about my experience and why I was looking for a change of job. Nothing too detailed about my experience. Did not pursue the lead

4 rounds, 1.coding Ds algo 2. same 3. same 4. os , networking all the rounds were concluded on the same day, , the test was taken on hackerearth. there were 3 coding questions in the test . any one who solved 2 questions got the interview call