Description
Angel was caught by the MOLIGPY! He was put in prison by Moligpy. The prison is described as a N * M (N, M <= 200) matrix. There are WALLs, ROADs, and GUARDs in the prison.Angel’s friends...
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其他好文 时间：
2015-07-26 15:47:49
阅读次数：
86
参考：http://scikit-learn.org/stable/modules/random_projection.html
The sklearn.random_projection module
通过trading accuracy（可控的范围）来降维数据，提高效率。实现了两类unstructured random matrix：: Gaussian
random mat...
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其他好文 时间：
2015-07-26 14:19:28
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222
Search a 2D Matrix IIWrite an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each ...
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其他好文 时间：
2015-07-25 22:51:32
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125
Search a 2D Matrix IIWrite an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each ...
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编程语言 时间：
2015-07-25 18:07:35
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173
Search a 2D MatrixWrite an efficient algorithm that searches for a value in anmxnmatrix. This matrix has the following properties:Integers in each row...
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编程语言 时间：
2015-07-25 16:42:47
阅读次数：
101
题目：
Search a 2D Matrix II
Write an efficient algorithm that searches for a value in an
m x n matrix. This matrix has the following properties:
Integers in each row are sorted in ascending ...
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其他好文 时间：
2015-07-25 15:22:45
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263
Well, the idea is to search from thetop-rightelement and then reduce the range for further searching by comparisons betweentargetand the current eleme...
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其他好文 时间：
2015-07-25 13:34:48
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131
问题描述Given amxnmatrix, if an element is 0, set its entire row and column to 0. Do it in place.解决思路难点在于如何不使用辅助空间。一个巧妙的想法是，1. 使用两个标记变量，row0_has_zeros和col...
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其他好文 时间：
2015-07-25 12:01:16
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139
http://poj.org/problem?id=3070直接用矩阵快速幂得到f(n)然后输出后四位即可。 1 #include 2 typedef long long ll; 3 const int mod = 10000; 4 struct Mat 5 { 6 ll matrix[2...
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其他好文 时间：
2015-07-25 10:37:37
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119
2.3.1 Basic Commandscreate an arrayx = c(1,6,2)create a matrix>x=matrix (data=c(1,2,3,4) , nrow=2, ncol =2)> x=matrix (c(1,2,3,4) ,2,2)> x[1,2][1] 3> ...
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其他好文 时间：
2015-07-25 07:08:35
阅读次数：
226
