Cyware Software Development Engineer In Test (SDET) interview questions

On Campus Hiring Round 1: Quantitative & Verbal Aptitude 2 coding questions Leetcode easy to medium level String Manipulation, Math Round 2: Technical Interview This round was purely based on DSA Questions Asked: Majority Element in an Array (Asked to do without using extra space) Expected the Bayer's Moore Voting Algorithm for solving this problem. Arrange 0's, 1's and 2's in order in Array. (Without using Extra space & without sorting) Expected Two Pointer method to solve this problem. Computer Networks: Explain TCP/UDP with example Round 3: Medium Leet code graphs, Projects in Resume Round 4: HR basic Questions like family background etc.

the technical interview they asked about me was strings the question was finding out the first nonrecurring string character in the given string i tried to solve that but they added constraints and wanted me to solve in O of n which i was not able to do