Visa Inc. Software Engineer Internship interview questions

First round was a coding round on hacker rank, 1 medium and 1 easy question of leet code. Second round was a Skype call with 3 different interviewers back to back. First interview was behavioral questions, a coding problem, and some technical ones about projects. Second interview was also a coding round, third interview was taken by the team head and was about my whole background and skills, and how much familiar I am in automation and Artificial intelligence field.

Was given 2 Hackerrank questions, 1 leetcode easy 1 medium level to be completed in 90 minutes. Second question requires most efficient code to pass all test cases. First question was simple coding and no optimization is required to pass the test cases.