Google面试的20题
1. Solve this cryptic equation, realizing of
course that values for M and E could be
interchanged. No leading zeros are allowed.
WWWDOT - GOOGLE = DOTCOM
2. Write a haiku describing possible methods
for predicting search traffic seasonality.
3.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
What is the next line?
4. You are in a maze of twisty little passages,
all alike. There is a dusty laptop here with a
weak wireless connection. There are dull,
lifeless gnomes strolling about. What dost
thou do?
A) Wander aimlessly, bumping into
obstacles until you are eaten by a grue.
B) Use the laptop as a digging device to
tunnel to the next level.
C) Play MPoRPG until the battery dies
along with your hopes.
D) Use the computer to map the nodes
of the maze and discover an exit path.
E) Email your resume to Google, tell the
lead gnome you quit and find yourself
in whole different world.
5. What’s broken with Unix?
How would you fix it?
6. On your first day at Google, you discover
that your cubicle mate wrote the textbook
you used as a primary resource in your first
year of graduate school. Do you:
A) Fawn obsequiously and ask if you
can have an autograph.
B) Sit perfectly still and use only soft
keystrokes to avoid disturbing her
concentration.
C) Leave her daily offerings of granola
and English toffee from the food bins.
D) Quote your favorite formula from the
textbook and explain how it’s now
your mantra.
E) Show her how example 17b could
have been solved with 34 fewer lines
of code.
7. Which of the following expresses Google□
over-arching philosophy?
A) "I’m feeling lucky"
B) "Don’t be evil"
C) "Oh, I already fixed that"
D) "You should never be more than
50 feet from food"
E) All of the above
8. How many different ways can you color an
icosahedron with one of three colors on
each face?
What colors would you choose?
9. This space left intentionally blank. Please fill it
with something that improves upon emptiness.
10.On an infinite, two-dimensional, rectangular
lattice of 1-ohm resistors, what is the
resistance between two nodes that are a
knight’s move away?
11.It’s 2 PM on a sunny Sunday afternoon in the
Bay Area. You’re minutes from the Pacific
Ocean, redwood forest hiking trails and world
class cultural attractions. What do you do?
12.In your opinion, what is the most beautiful
math equation ever derived?
13. Which of the following is NOT an actual
interest group formed by Google employees?
A. Women’s basketball
B. Buffy fans
C. Cricketeers
D. Nobel winners
E. Wine club
14.What will be the next great improvement in
search technology?
15.What is the optimal size of a project team,
above which additional members do not
contribute productivity equivalent to the
percentage increase in the staff size?
A) 1
B) 3
C) 5
D) 11
E) 24
16.Given a triangle ABC, how would you use only
a compass and straight edge to find a point P
such that triangles ABP, ACP and BCP have
equal perimeters? (Assume that ABC is
constructed so that a solution does exist.)
17.Consider a function which, for a given whole
number n, returns the number of ones required
when writing out all numbers between 0 and n.
For example, f(13)=6. Notice that f(1)=1. What
is the next largest n such that f(n)=n?
18.What’s the coolest hack you’ve ever written?
19.’Tis known in refined company, that choosing
K things out of N can be done in ways as
many as choosing N minus K from N: I pick K,
you the remaining.
Find though a cooler bijection, where you show
a knack uncanny, of making your choices contain
all K of mine. Oh, for pedantry: let K be no more
than half N.
20.What number comes next in the sequence:
10, 9, 60, 90, 70, 66,?
1试着证明WWWDOT-GOOGLE=DOTCOM·
2用俳句（一种日本短诗，每句有一个与季节有关的词）来描述各种模型，借此预测网络搜索流量的季节性变化。
4·你落入一个迷宫，回旋不断的走廊。手里有一台堆满灰尘的手提电脑，可以无线上网。周围，许多无生命的侏儒徘徊走动。这种情况下，你会如何做？
A)无目的地徘徊，不停走入死胡同，然后被迷宫里面的妖怪吃掉。
B)用手提电脑当铲子，打穿地板直接进入游戏下一关。
C)玩网络游戏《魔法奇兵》，直到电池耗尽。
D)利用计算机，找到迷宫的节点，发现准确出路。
E)把你的简历寄给Google，告诉迷宫里领头的妖怪，你要退出游戏。然后，发现你回到了现实世界。
5·Unix有什么问题？你会如何补救它？
6·你在Google工作的第一天，发现你同寝室的室友，曾写过一本书。你研究生一年级时，这本书是你最重要的参考资料。你会：
A)求他帮你签个名。
B)不改坐姿，却放轻打字声音，尽量避免影响他。
C)把你每天吃的麦片和咖啡，留给他吃。
D)引用他那本书中间，你最喜欢的程式，告诉他这则方程给了你多少启发。
E)让他看看，你可以用不到34句语句，完成一个高难度程序。
7·以下哪个最好地表达了Google的企业文化？
A)“我感觉挺幸运”
B)“别干坏事”
C)“哦，我已经完成了任务”
D)“你身边10米以内，必定能找到食物”
E)以上皆是
10·用1欧姆的电阻，组成无限大的放行点阵，问“象棋跳马步”（“日”字对角点）两点之间的电阻是多少？
11·下午2点，旧金山著名的湾区。你可以选择去阳光海岸、国家公园的红杉林里徒步旅行，或者参观城市
里的文化景观。你会怎么做？
14·搜索技术的下一个革命性突破是什么？
15·一个技术研究小组的最优化人员组合是几个人？一旦超过这个数字，每增加一个研究员，平均生产力就会相应下降：
A)1
B)3
C)5
D)11
E)24
16·三角形ABC，用圆规和尺，找出点P，保证三角形ABP、ACP和BCP周长相等。
18·你写过最酷的程序是什么？
20·找出此数列的下一个:10,9,60,90,70,66?
A)96
B)10的100次方
C)A或者B
D)以上皆否
·用少于29个词，描述你能带给Google实验室的贡献。