Walmart Software Developer interview questions

Frustrating experience. I had heard good things about Walmart Tech, so I stopped by their booth at a career fair and I was asked to interview later that day. Details of what position the interview specifically for were not made clear, but I figured I could learn more in the interview. When I arrived for the interview, I waited for a half hour past my scheduled time before they realized that the recruiter I was supposed to interview with had accidentally overbooked. So they sent me into a room with a random guy. He didn't know what he was specifically interviewing me for, didn't even ask for my resume, and went an half hour over my allotted time asking different coding questions. Some questions weren't clear, and I did not know what he was trying to ask at times. Needless to say, I came out very frustrated with the process, especially since I had rearranged my schedule for this.