Help, what did Ali intern get in the written test?

The questions about computer knowledge in Ali intern's written test are as follows: Alibaba 20 14 written test:

The initial state of 1. stack s is empty. Elements a, b, c, d, e and f pass through the stack s in turn. If the order of popping is C, F, E, D, B, A, then the capacity of stack S should be at least _ _ _ _ _.

. three

four

five

six

2, 10 the same candy, distributed to three people, each with at least one. There is a different division.

33

34

35

36

3. The binary representation of decimal value 1.5625 is _ _ _ _.

10 1. 100 1

0.00 1

10 1. 1 1 1

1. 100 1

4. The preorder traversal of a binary tree is 12453 and the median traversal is 425 13, so its subsequent traversal is _ _ _ _ _.

4523 1

4235 1

12345

5432 1

Alibaba Network Technology Co., Ltd. (Alibaba Group for short) is a group of 18 people headed by Ma Yun, who used to be an English teacher. 65,438+0999 was established in Hangzhou, China. They believe that the Internet can create a level playing field, allow small enterprises to expand their business through innovation and technology, and be in a better position to participate in domestic or global market competition.