Google phone 10/30

和 island count 一样， 不过要输出the labels of the island. i.e., given a point (x,y) you need to be

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Sorry I couldn't provide the follow up....

disjoint set

marthew777 发表于 2015-10-31 07:37
disjoint set

i can assure you it has nothing to do with union find.

lilian_chang 发表于 2015-10-31 07:38
i can assure you it has nothing to do with union find.

跪求楼主的做法，(楼主别激动，我们讨论题目可以用中文吗 =)

marthew777 发表于 2015-10-31 07:43
跪求楼主的做法，(楼主别激动，我们讨论题目可以用中文吗 =)

for the original problem, it's simply dfs; I just gave a label to each connected component and at the end output a "label" matrix. he approved that solution. i.e. this problem is trivial.

But the follow up statement was too vague to understand--yet from the little pieces of information i got, it's not union find :)

ps: i have to apologize that 我中文语言表达能力从小就差...

我觉得面试官发慈悲了让我混了一个onsite， 连follow up都没听懂的情况下..