RANDOMIZED-HIRE-ASSISTANT(n) randomly permute the list of candidates 2 best =0 /candidate 0 is a least-qualified dummy candidate 3 for i 1ton 4 interview candidate i 5 if candidate i is better than candidate best 6 best i 7 hire candidate i 问题2： 什么是随机算法？ 这个算法是“随机”的吗？