How to Solve Maximum Fruits Harvested After at Most K Steps Problem
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Maximum Fruits Harvested After at Most K Steps
Fruits are available at some positions on an infinite x-axis. You are given a 2D integer array fruits where fruits[i] = [positioni, amounti] depicts amounti fruits at the position positioni. fruits is...
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Understanding the Maximum Fruits Harvested After at Most K Steps Problem
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Problem Statement
Fruits are available at some positions on an infinite x-axis. You are given a 2D integer array fruits where fruits[i] = [positioni, amounti] depicts amounti fruits at the position positioni. fruits is already sorted by positioni in ascending order, and each positioni is unique. You are also given an integer startPos and an integer k. Initially, you are at the position startPos. From any position, you can either walk to the left or right. It takes one step to move one unit on the x-axis, and you can walk at most k steps in total. For every position you reach, you harvest all the fruits at that position, and the fruits will disappear from that position. Return the maximum total number of fruits you can harvest.
Maximum Fruits Harvested After at Most K Steps
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Examples
fruits = [[2,8],[6,3],[8,6]], startPos = 5, k = 49The optimal way is to: - Move right to position 6 and harvest 3 fruits - Move right to position 8 and harvest 6 fruits You moved 3 steps and harvested 3 + 6 = 9 fruits in total.
fruits = [[0,9],[4,1],[5,7],[6,2],[7,4],[10,9]], startPos = 5, k = 414You can move at most k = 4 steps, so you cannot reach position 0 nor 10. The optimal way is to: - Harvest the 7 fruits at the starting position 5 - Move left to position 4 and harvest 1 fruit - Move right to position 6 and harvest 2 fruits - Move right to position 7 and harvest 4 fruits You moved 1 + 3 = 4 steps and harvested 7 + 1 + 2 + 4 = 14 fruits in total.
fruits = [[0,3],[6,4],[8,5]], startPos = 3, k = 20You can move at most k = 2 steps and cannot reach any position with fruits.
Constraints
1 <= fruits.length <= 105fruits[i].length == 20 <= startPos, positioni <= 2 * 105positioni-1 < positioni for any i > 0 (0-indexed)1 <= amounti <= 1040 <= k <= 2 * 105How Interview Coder Helps with Leetcode Problems
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