I ran my program twice. Each time, I got the same sequence of pseudorandom numbers. Why?

That's how ct$+$ works, there's really no way around that.

I should have seeded the random number generator with srand$($time$($NULL$))$:

I needed to use rand $0\%6+1$;

I should have used srand$()$ instead of rand$().$

C$++$ cannot produce pseudorandom numbers.