There are a row ofnhouses, 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 same color.
The cost of painting each house with a certain color is represented by anx3cost matrix. For example,costs[0][0]is the cost of painting house 0 with color red;costs[1][2]is the cost of painting house 1 with color green, and so on... Find the minimum cost to paint all houses.
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