It started with an online coding interview on Codility. Three questions were asked, ranging from easy to difficult. After clearing this round, I had a screening round where two questions were asked. You were supposed to write code on Collabedit. After clearing this round, I had three Skype rounds back-to-back, lasting four hours. Two rounds were based on data structures and algorithms, and one was based on design. The interviews were nicely arranged, and the interviewers were helpful.

Given an array, find the missing number.

Question related to the biggest interval done using a heap.

String pattern matching.

Design Snake and Ladder.

Design TinyURL.

Word Break problem (dynamic programming).