hardArrayDynamic Programming 0 views

Painting the Walls

You are given two 0-indexed integer arrays, cost and time, of size n representing the costs and the time taken to paint n different walls respectively.

You are given two 0-indexed integer arrays, cost and time, of size n representing the costs and the time taken to paint n different walls respectively. There are two painters available:

Return the minimum amount of money required to paint the n walls.

Example 1

Input: cost = [1,2,3,2], time = [1,2,3,2]

Output: 3

Explanation: The walls at index 0 and 1 will be painted by the paid painter, and it will take 3 units of time; meanwhile, the free painter will paint the walls at index 2 and 3, free of cost in 2 units of time. Thus, the total cost is 1 + 2 = 3.

Example 2

Input: cost = [2,3,4,2], time = [1,1,1,1]

Output: 4

Explanation: The walls at index 0 and 3 will be painted by the paid painter, and it will take 2 units of time; meanwhile, the free painter will paint the walls at index 1 and 2, free of cost in 2 units of time. Thus, the total cost is 2 + 2 = 4.

Constraints

  • 1 <= cost.length <= 500
  • cost.length == time.length
  • 1 <= cost[i] <= 10^6
  • 1 <= time[i] <= 500

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