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How to Solve Watering Plants Problem
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Medium#2079
LeetCode ProblemWatering Plants
You want to water n plants in your garden with a watering can. The plants are arranged in a row and are labeled from 0 to n - 1 from left to right where the ith plant is located at x = i. There is a river at x = -1 that you can refill your watering can at. Each plant needs a specific amount of water. You will water the plants in the following way: You are initially at the river (i.e., x = -1). It takes one step to move one unit on the x-axis. Given a 0-indexed integer array plants of n integers, where plants[i] is the amount of water the ith plant needs, and an integer capacity representing the watering can capacity, return the number of steps needed to water all the plants.
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Problem Breakdown
Understanding the Watering Plants Problem
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Problem Statement
You want to water n plants in your garden with a watering can. The plants are arranged in a row and are labeled from 0 to n - 1 from left to right where the ith plant is located at x = i. There is a river at x = -1 that you can refill your watering can at. Each plant needs a specific amount of water. You will water the plants in the following way: You are initially at the river (i.e., x = -1). It takes one step to move one unit on the x-axis. Given a 0-indexed integer array plants of n integers, where plants[i] is the amount of water the ith plant needs, and an integer capacity representing the watering can capacity, return the number of steps needed to water all the plants.
MediumProblem #2079
LeetCodeWatering Plants
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Examples
# Example 1
Input
plants = [2,2,3,3], capacity = 5
Output
14
# Example 2
Input
plants = [1,1,1,4,2,3], capacity = 4
Output
30
# Example 3
Input
plants = [7,7,7,7,7,7,7], capacity = 8
Output
49
Constraints
n == plants.length
1 <= n <= 1000
1 <= plants[i] <= 106
max(plants[i]) <= capacity <= 109
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Solve Watering Plants — You want to water n plants in your garden with a watering can. The plants are ar...
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def solve(input):
# Optimal O(n) solution
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Time: O(n) | Space: O(n)
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