s*f
2 楼
There are a row of houses, each house can be painted with three colors red,
blue and green. The cost of painting each house with a certain color is
different. You have to paint all the houses such that no two adjacent houses
have the same color. You have to paint the houses with minimum cost. How
would you do it?
blue and green. The cost of painting each house with a certain color is
different. You have to paint all the houses such that no two adjacent houses
have the same color. You have to paint the houses with minimum cost. How
would you do it?
Y*d
3 楼
用vpn上网,网站完全不知道真实ip?
r*g
4 楼
一排房子,难道不是两种最便宜的颜色轮流漆……?
k*s
5 楼
看你干什么。如果是想保留一点个人小隐私,VPN是有用的。如果是做大案,没用,因
为FBI可以查看任何一个VPN的记录找到你的IP甚至更多的资料。
为FBI可以查看任何一个VPN的记录找到你的IP甚至更多的资料。
o*g
6 楼
假设前面N个已经刷好了,第N+1个,不能和第N个同颜色,就剩俩颜色了,选便宜的那个
第一个就三个里面选最便宜的。
,
houses
【在 s***f 的大作中提到】
: There are a row of houses, each house can be painted with three colors red,
: blue and green. The cost of painting each house with a certain color is
: different. You have to paint all the houses such that no two adjacent houses
: have the same color. You have to paint the houses with minimum cost. How
: would you do it?
第一个就三个里面选最便宜的。
,
houses
【在 s***f 的大作中提到】
: There are a row of houses, each house can be painted with three colors red,
: blue and green. The cost of painting each house with a certain color is
: different. You have to paint all the houses such that no two adjacent houses
: have the same color. You have to paint the houses with minimum cost. How
: would you do it?
g*e
8 楼
minCost(first i houses, i th house with color x)
,
houses
【在 s***f 的大作中提到】
: There are a row of houses, each house can be painted with three colors red,
: blue and green. The cost of painting each house with a certain color is
: different. You have to paint all the houses such that no two adjacent houses
: have the same color. You have to paint the houses with minimum cost. How
: would you do it?
,
houses
【在 s***f 的大作中提到】
: There are a row of houses, each house can be painted with three colors red,
: blue and green. The cost of painting each house with a certain color is
: different. You have to paint all the houses such that no two adjacent houses
: have the same color. You have to paint the houses with minimum cost. How
: would you do it?
k*s
9 楼
各个国家的法律不同。
你就记住一条:一切加密都是到VPN服务器为止,到那都是解开的。当然,如果你访问
的最终目的地是SSL(HTTPS),那么那一层的加密还是维持的。
你就记住一条:一切加密都是到VPN服务器为止,到那都是解开的。当然,如果你访问
的最终目的地是SSL(HTTPS),那么那一层的加密还是维持的。
R*9
11 楼
use a 3*N matrix.
fun('R', i) = cost('R', i) + min(fun('B', i-1), fun('G', i-1));
fun('G', i) = cost('G',i) + min(fun('R', i-1), fun('B', i-1));
fun('B', i) = cost('B', i) + min(fun('R',i-1), fun('G', i-1));
【在 o***g 的大作中提到】
: 这个还真有问题,比如
: R G B
: 1 10 100 1000
: 2 1 1000 10000
: 第一个选了10,第二个就得选1000,结果是1010
: 其实答案应该是第一个选100,第二个选1,结果是101
:
: 那个
fun('R', i) = cost('R', i) + min(fun('B', i-1), fun('G', i-1));
fun('G', i) = cost('G',i) + min(fun('R', i-1), fun('B', i-1));
fun('B', i) = cost('B', i) + min(fun('R',i-1), fun('G', i-1));
【在 o***g 的大作中提到】
: 这个还真有问题,比如
: R G B
: 1 10 100 1000
: 2 1 1000 10000
: 第一个选了10,第二个就得选1000,结果是1010
: 其实答案应该是第一个选100,第二个选1,结果是101
:
: 那个
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