Practice Rabbits in Forest
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Rabbits in Forest
Each entry in answers comes from a different surveyed rabbit and gives the number of OTHER rabbits sharing its color. Some rabbits were not surveyed. Find the smallest total population consistent with every answer. Approach: A report of x belongs to a color group of x + 1 rabbits. If f rabbits report x, they require ceil(f / (x + 1)) such groups. Sum each group count multiplied by x + 1. Equal answers may require multiple colors when too many rabbits report the same number. A frequency table gives O(n) time and O(d) space for d distinct answers.
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Understanding the Rabbits in Forest Problem
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Problem Statement
Each entry in answers comes from a different surveyed rabbit and gives the number of OTHER rabbits sharing its color. Some rabbits were not surveyed. Find the smallest total population consistent with every answer. Approach: A report of x belongs to a color group of x + 1 rabbits. If f rabbits report x, they require ceil(f / (x + 1)) such groups. Sum each group count multiplied by x + 1. Equal answers may require multiple colors when too many rabbits report the same number. A frequency table gives O(n) time and O(d) space for d distinct answers.
Source: Rabbits in Forest on LeetCode. Use the original task for its coding environment and submissions.
Rabbits in Forest
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Examples
# Example 1
answers = [2,2,2,2,0]
7
Four reports of 2 require two color groups of three. The report of 0 adds a separate one-rabbit group.
# Example 2
answers = [0,0]
2
Each rabbit has a different color because neither has a same-color companion.
Constraints
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