There are a row of n houses, each house can be painted with one of the three colors: red, blue or 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 sam…

There are a row of n houses, each house can be painted with one of the three colors: red, blue or 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 sam…

There are a row of n houses, each house can be painted with one of the three colors: red, blue or 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 sam…

There are a row of n houses, each house can be painted with one of the three colors: red, blue or 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 sam…

There is a fence with n posts, each post can be painted with one of the k colors.You have to paint all the posts such that no more than two adjacent fence posts have the same color.Return the total number of ways you can paint the fence. Notice n and…

There are a row of n houses, each house can be painted with one of the k colors. 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. The cost of pai…

There are a row of n houses, each house can be painted with one of the three colors: red, blue or 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 sam…

There are a row of n houses, each house can be painted with one of the k colors. 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. The cost of pai…

Q: A: 首先这题可以和粉刷房子这题一样解法,对于i号房子,遍历k种颜色,对于每一种,都去找i-1号房子除该颜色之外的最小花费.但上一题是3种颜色,总复杂度O(N),这题k种颜色,复杂度O(NK^2),题目要求O(NK),则对于i号房子我们保存下当前房子最小的花费以备i+1号房子使用,但因为相邻房子不能涂相同颜色的油漆.假设对于i号房子最小花费是涂x号油漆,则对于i+1号房子来说,一定不能涂x号了.解决办法是我们对于每一个房子,保存最小花费MIN和次最小花费2_MIN.对于下一个房子,涂某种油…

There are a row of n houses, each house can be painted with one of the k colors. 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. The cost of pai…