How to Solve Minimum Number of Days to Make m Bouquets Problem
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Minimum Number of Days to Make m Bouquets
You are given an integer array bloomDay, an integer m and an integer k. You want to make m bouquets. To make a bouquet, you need to use k adjacent flowers from the garden. The garden consists of n flo...
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Understanding the Minimum Number of Days to Make m Bouquets Problem
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Problem Statement
You are given an integer array bloomDay, an integer m and an integer k. You want to make m bouquets. To make a bouquet, you need to use k adjacent flowers from the garden. The garden consists of n flowers, the ith flower will bloom in the bloomDay[i] and then can be used in exactly one bouquet. Return the minimum number of days you need to wait to be able to make m bouquets from the garden. If it is impossible to make m bouquets return -1.
Minimum Number of Days to Make m Bouquets
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Examples
bloomDay = [1,10,3,10,2], m = 3, k = 13Let us see what happened in the first three days. x means flower bloomed and _ means flower did not bloom in the garden. We need 3 bouquets each should contain 1 flower. After day 1: [x, _, _, _, _] // we can only make one bouquet. After day 2: [x, _, _, _, x] // we can only make two bouquets. After day 3: [x, _, x, _, x] // we can make 3 bouquets. The answer is 3.
bloomDay = [1,10,3,10,2], m = 3, k = 2-1We need 3 bouquets each has 2 flowers, that means we need 6 flowers. We only have 5 flowers so it is impossible to get the needed bouquets and we return -1.
bloomDay = [7,7,7,7,12,7,7], m = 2, k = 312We need 2 bouquets each should have 3 flowers. Here is the garden after the 7 and 12 days: After day 7: [x, x, x, x, _, x, x] We can make one bouquet of the first three flowers that bloomed. We cannot make another bouquet from the last three flowers that bloomed because they are not adjacent. After day 12: [x, x, x, x, x, x, x] It is obvious that we can make two bouquets in different ways.
Constraints
bloomDay.length == n1 <= n <= 1051 <= bloomDay[i] <= 1091 <= m <= 1061 <= k <= nHow Interview Coder Helps with Leetcode Problems
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