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Combinations
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...
分类:其他好文   时间:2014-06-04 20:02:13    阅读次数:228
N-Queens
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...
分类:其他好文   时间:2014-06-04 20:00:47    阅读次数:206
Sqrt(x)
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...
分类:其他好文   时间:2014-06-04 19:54:17    阅读次数:214
Anagrams
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...
分类:其他好文   时间:2014-06-04 19:29:39    阅读次数:247
Spiral Matrix II
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...
分类:其他好文   时间:2014-06-04 19:28:23    阅读次数:220
自己Cookie写的自动登录功能
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(...
分类:其他好文   时间:2014-06-04 19:26:59    阅读次数:425
Merge Two Sorted Lists
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...
分类:其他好文   时间:2014-06-04 19:23:45    阅读次数:243
Add Binary
Given two binary strings, return their sum (also a binary string).For example,a ="11"b ="1"Return"100".classSolution{public:stringaddBinary(stringa,st...
分类:其他好文   时间:2014-06-04 19:23:09    阅读次数:235
Permutations II
Given a collection of numbers that might contain duplicates, return all possible unique permutations.For example,[1,1,2]have the following unique perm...
分类:其他好文   时间:2014-06-04 19:10:54    阅读次数:240
Permutations
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,...
分类:其他好文   时间:2014-06-04 19:10:16    阅读次数:155
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