Permutation p is
an ordered set of integers p1,??p2,??...,??pn,
consisting of n distinct positive integers, each of them doesn't exceed n.
We'll denote the i-th element of permutation p as pi.
...
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其他好文 时间：
2014-07-22 23:00:15
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312
Given a binary tree containing digits from 0-9
only, each root-to-leaf path could represent a number.An example is the
root-to-leaf path 1->2->3 which...
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其他好文 时间：
2014-05-05 23:55:36
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407
题目描述You are organizing a dance party. The party
will be attended by n boys and n girls. There will be several rounds of dancing.
In each round, you di...
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其他好文 时间：
2014-05-05 23:18:13
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364
Shaass has decided to hunt some birds. There are n horizontal electricity wires aligned parallel to each other. Wires are numbered 1 to n from
top to bottom. On each wire there are some oskols sitti...
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其他好文 时间：
2014-05-02 20:48:26
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462
Iahub accidentally discovered a secret lab. He
found there n devices ordered in a line, numbered from 1 to n from left to
right. Each device i (1?≤?i?...
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其他好文 时间：
2014-05-02 15:36:19
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314
这道题，采用动态规划算法。from top to
down，把到每个节点的最小路径和都求出来。下面是AC代码： 1 /** 2 * Given a triangle, find the minimum path
sum from top to bottom. 3 * Each ...
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其他好文 时间：
2014-05-02 12:19:23
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382
Write an efficient algorithm that searches for
a value in anmxnmatrix. This matrix has the following properties:Integers in
each row are sorted from l...
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其他好文 时间：
2014-05-02 10:41:53
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267
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a link...
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其他好文 时间：
2014-05-01 22:08:19
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366
You are given two linked lists representing two
non-negative numbers. The digits are stored in reverse order and each of their
nodes contain a single ...
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其他好文 时间：
2014-05-01 20:18:54
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425
#生成excel
#ljl
use Spreadsheet::WriteExcel;
my %us;
while(($key, $value) = each %us){
print "$key|$value\n";
}
# 创建一个新的EXCEL文件
my $workbook = Spreadsheet::WriteExcel->new('poi_count_top15....
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其他好文 时间：
2014-04-29 13:33:21
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327
