Velotio Python Engineer interview questions

I got a reference from my office colleague. They asked me about my skills, tech stack, CCTC, ECTC and notice period. Interview Consists of 3 rounds: 1. Coding Round (Pen and paper test) - Which includes 4 questions regarding stack and an array (Implement two stacks using one array, check if expression consists of correct parenthesis, find if a small array is sub-array of the larger one.) 2. Face-to-face interview - Review of the coding round. Asked to do some changes in code. Asked me about the projects I have worked on. 3. Face-to-face interview with CTO - Aksed me few challenging things I have done till now, discussed the project from current company. Asked me to write solution for the Sudoku Problem. In both the interviews they asked to write fully functional code and it should cover all cases. The whole process took 1 day, but they put my application on hold and said they will release the offer once they got the project.