In-depth solution and explanation for LeetCode 265. Paint House II in Python, Java, C++ and more. Intuitions, example walk through, and complexity analysis.
Better than official and forum solutions. The Paint House II problem is a classic dynamic programming challenge. By recognizing the need to efficiently select the minimum cost for each color without repeating the color of the previous house, we leverage the idea of tracking the smallest and second smallest costs at each step.
Problem Statement In this problem, we need to determine the minimum cost to paint a row of n houses, where each can be painted using one of the k different colors. Every distinct pair of adjacent houses must be painted with different colors, and the cost varies for painting each house with each specific color. This varied cost is given in an n x k matrix where each entry, such as costs [i] [j.
LeetCode 265: Paint House II Solution in Python - A Step-by-Step Guide Imagine you're tasked with painting a row of houses-like [["1,4,3"], ["12,1,6"], ["5,2,8"]] -where each house can be painted with one of several colors, but no two adjacent houses can share the same color, and you need to minimize the total cost. This is LeetCode 265: Paint House II, a hard. 265.
Paint House II 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 painting each house with a certain color is represented by a n x k cost matrix. The cost of painting each house with a certain color is represented by a nxk cost matrix. For example, costs [0] [0] is the cost of painting house 0 with color 0; costs [1] [2] is the cost of painting house 1 with color 2, and so on Find the minimum cost to paint all houses.
Can you solve this real interview question? Paint House II. Cost to Paint a Two Story House - Notes and General Information This example estimate is for BASIC mid-range work performed in readily serviceable conditions by professionals proficient in all work mentioned above, using popular, IN STOCK products, materials and supplies available at home improvement retailers. For example, costs [0] [0] is the cost of painting house 0 with color 0; costs [1] [2] is the cost of painting house 1 with color 2, and so on Find the minimum cost to paint all houses.
For example, costs[0][0] is the cost of painting house 0 with color 0; costs[1][2] is the cost of painting house 1 with color 2, and so on Return the minimum cost to paint all houses.
