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
阅读次数:
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
Implementint sqrt(int x).Compute and return the
square root
ofx.classSolution{public:intsqrt(intx){inti=0;intstep=1;while(step>0){while((i+step)>1);}r...
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其他好文 时间:
2014-06-04 19:54:17
阅读次数:
214
Given an array of strings, return all groups of
strings that are anagrams.Note: All inputs will be in
lower-case.classSolution{public:vectoranagrams(v...
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其他好文 时间:
2014-06-04 19:29:39
阅读次数:
247
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
sql表username password字段User类有 id username
password等字段Service有一函数1 @Override2 3 public User findUser(String username) 4 {5
return userDao.findUser(...
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其他好文 时间:
2014-06-04 19:26:59
阅读次数:
425
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 that might
contain duplicates, return all possible unique permutations.For
example,[1,1,2]have the following unique perm...
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其他好文 时间:
2014-06-04 19:10:54
阅读次数:
240
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