Practice Cut Off Trees for Golf Event
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Cut Off Trees for Golf Event
In forest, 0 is blocked ground, 1 is open ground, and a value greater than 1 is the height of a tree on walkable ground. Start at (0, 0) and move horizontally or vertically one cell per step. Cut all trees in increasing height order; cutting changes its cell to 1 and requires no movement step. Trees can be walked through before being cut. Return the minimum walking steps, or -1 if some tree cannot be reached. Tree heights are distinct and at least one tree exists.
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Understanding the Cut Off Trees for Golf Event Problem
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Problem Statement
In forest, 0 is blocked ground, 1 is open ground, and a value greater than 1 is the height of a tree on walkable ground. Start at (0, 0) and move horizontally or vertically one cell per step. Cut all trees in increasing height order; cutting changes its cell to 1 and requires no movement step. Trees can be walked through before being cut. Return the minimum walking steps, or -1 if some tree cannot be reached. Tree heights are distinct and at least one tree exists.
Source: Cut Off Trees for Golf Event on LeetCode. Use the original task for its coding environment and submissions.
Cut Off Trees for Golf Event
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Examples
# Example 1
forest = [[1,2,3],[0,0,4],[7,6,5]]
6
# Example 2
forest = [[1,2,3],[0,0,0],[7,6,5]]
-1
# Example 3
forest = [[2,3,4],[0,0,5],[8,7,6]]
6
Constraints
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