Alibaba 2014 School recruit Questions-September 14, 2013

Have to spit groove, Ali is really too chaotic, Beijing's written test in the examination room for 2.5 hours, the examination papers are not shipped to the exam room, @ Alibaba Group Campus Recruitment response said: "Beijing students, simple explanation, in order to test the secrecy, printing time is relatively late, the results of an accident." "Still did not test, now the other city's written test is over, a classmate to share the test paper, do it,

This set of questions do not know which city, it is not clear that the different city pen test is the same ...

the picture is from the Internet, and the answer is self-made.

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1-5: C A C B c

6-7: D C

8-9: C A

10:b

11-12:a D

13-15:a B C

13 question: The probability of appearing 10 is P (1024 1), has already appeared 10, the expectation should be P's Countdown bar 1024

14 Question: If ^ indicates an XOR value of 2, if ^ represents a power then the value is 1

16-18:c B A

19-20:b B

21-24:abd ABC D ABCD

19:

First color coated 0 balls: 1

First color coated 1 balls: 1

First color coated 2 balls: 3

First color coated 3 balls: 4

First color coated 4 balls: 3

First color coated 5 balls: 1

First color coated 6 balls: 1

22, D three number represents the system average load of different time periods (one minute, five minutes, and 15 minutes), their numbers are of course the smaller the better. The higher the number, the greater the load on the server, which could be a signal of some kind of problem on the server. But the average load of one minute and five minutes is greater than 15 minutes, not the load is getting smaller.

Answer: a+b*c-d-e/f

Answer:

26 Questions: The number of direct hits is 3 times, respectively, when accessing 1,5,1,3,5,2,4,1,2. The last data item in the cache that is about to be retired is 5

27 Questions: node in a and node in B, which is the common node for two lists

is to walk through the list of linked lists A and chain list B, the length of the link list AB, and in the last look at the link list A and the last node of List B is not the same, if the same has a public node, if the difference there is no public node.

To find a public node is the use of two pointers, according to the length of the elapsed record, find the first public node, the node behind it is a public node.

28 Questions: P%= N;

29 Questions: 4 games. The analysis is shown below: The arrows indicate a red-blue match, (<-a B-c) shows a pair of B red pairs blue one, B to a red to blue one, with black dots of the expression repeated a match, the specific 4 games see the right of the 4 figure.