Five9 Seniro Software Engineer interview questions

The worst interview I had in my life. Interview was 30 mins. We spent 15 mins to talk about me and my experience. She gave me a vague question to solve and I spent 5 mins to understand the question. And asked that 10 mins would be enough for solving this question and she said it is enough for her to evaluate me? So I explained my approach with text and feedback was I am not good enough to solve the problem. Are you serious? you gave me 10 mins for solving the question and after spending 10 mins with me you evaluated me ability? This company is joke and even don't have proper process to evaluate candidates. So for readers, I got an offer from another Silicon Valley company so like to make sure I am not a just complainer here. Be prepare to show your best with 10 mins if you like to apply this company