Tekion Software Engineer interview questions

Only attended the first round. The interviewer asked one problem on binary search and second one on graph. The graph problem needed to be solved using Kahn's algorithm which I could not figure out during interview.

3 rounds of online interview 2 coding medium level leetcode interview 1 system design interview question designing twitter Coding problem was fairly simple and needed dp solution and a tree problem and a stack problem and a queue problem and a linked list problem