Given two wordsword1andword2, find the minimum
number of steps required to convertword1toword2. (each operation is counted as 1
step.)You have the fol...
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其他好文 时间：
2014-06-04 20:12:15
阅读次数：
199
Given a set ofnon-overlappingintervals, insert
a new interval into the intervals (merge if necessary).You may assume that the
intervals were initially...
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其他好文 时间：
2014-06-04 20:10:23
阅读次数：
204
Given an array of words and a lengthL, format
the text such that each line has exactlyLcharacters and is fully (left and
right) justified.You should p...
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其他好文 时间：
2014-06-04 20:08:22
阅读次数：
296
Given two integersnandk, return all possible
combinations ofknumbers out of 1 ...n.For example,Ifn= 4 andk= 2, a solution
is:[ [2,4], [3,4], [2,3], [1...
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其他好文 时间：
2014-06-04 20:02:13
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228
Then-queens puzzle is the problem of
placingnqueens on ann×nchessboard such that no two queens attack each
other.Given an integern, return all distinc...
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其他好文 时间：
2014-06-04 20:00:47
阅读次数：
206
You are climbing a stair case. It takesnsteps
to reach to the top.Each time you can either climb 1 or 2 steps. In how many
distinct ways can you climb...
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其他好文 时间：
2014-06-04 19:53:34
阅读次数：
173
Given an integern, generate a square matrix
filled with elements from 1 ton2in spiral order.For example,Givenn=3,You should
return the following matri...
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其他好文 时间：
2014-06-04 19:28:23
阅读次数：
220
Merge two sorted linked lists and return it as
a new list. The new list should be made by splicing together the nodes of the
first two lists./***Defin...
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其他好文 时间：
2014-06-04 19:23:45
阅读次数：
243
Given two binary strings, return their sum
(also a binary string).For example,a ="11"b
="1"Return"100".classSolution{public:stringaddBinary(stringa,st...
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其他好文 时间：
2014-06-04 19:23:09
阅读次数：
235
Given a collection of numbers, return all
possible permutations.For example,[1,2,3]have the following
permutations:[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,...
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其他好文 时间：
2014-06-04 19:10:16
阅读次数：
155
