Single NumberGiven an array of integers, every
element appearstwiceexcept for one. Find that single one.Note:Your algorithm
should have a linear runti...
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其他好文 时间：
2014-07-22 23:07:14
阅读次数：
337
Given two binary trees, write a function to
check if they are equal or not.Two binary trees are considered equal if they are
structurally identical an...
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其他好文 时间：
2014-05-01 16:06:46
阅读次数：
427
Problem 1:Given a set of distinct integers, S,
return all possible subsets.Note:Elements in a subset must be in non-descending
order.The solution set ...
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其他好文 时间：
2014-05-01 09:43:43
阅读次数：
414
Given an array of integers, find two numbers
such that they add up to a specific target number.The function twoSum should
return indices of the two nu...
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其他好文 时间：
2014-05-01 08:35:40
阅读次数：
443
1D people lived in a 1D country. Everything in the country was one-dimensional, and everything was simple and clear: just one axis and two directions — forward and backward. Even a 1D world has proble...
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其他好文 时间：
2014-04-29 13:44:22
阅读次数：
284
Pat1063代码
题目描述：
Given two sets of integers, the similarity of the sets is defined to be Nc/Nt*100%, where Nc is the number of distinct common numbers shared by the two sets,
and Nt is the to...
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其他好文 时间：
2014-04-29 13:44:20
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325
Given n non-negative integers a1, a2,
..., an, where each represents a point at coordinate (i, ai). n vertical
lines are drawn such that the two endpoints of line i is at (i, ai) and (i,
0). Fin...
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其他好文 时间：
2014-04-29 13:15:21
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415
Given two binary strings, return their sum (also a binary string).
For example,
a = "11"
b = "1"
Return "100".
思路同十进制的大数相加。代码如下：
class Solution {
public:
string addBinary(string a, str...
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其他好文 时间：
2014-04-29 13:12:20
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328
A Simple Problem with Integers
Time Limit: 5000MS
Memory Limit: 131072K
Total Submissions: 55626
Accepted: 16755
Case Time Limit: 2000MS
Description
You have N...
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其他好文 时间：
2014-04-28 10:23:41
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282
RSA is one of the most powerful methods to encrypt data. The RSA algorithm is described as follow:
> choose two large prime integer p, q
> calculate n = p × q, calculate F(n) = (p - 1) × (q - 1)
...
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其他好文 时间：
2014-04-27 21:37:59
阅读次数：
315
