How to Solve Pass the Pillow Problem
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Pass the Pillow
There are n people standing in a line labeled from 1 to n. The first person in the line is holding a pillow initially. Every second, the person holding the pillow passes it to the next person standing...
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Understanding the Pass the Pillow Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
There are n people standing in a line labeled from 1 to n. The first person in the line is holding a pillow initially. Every second, the person holding the pillow passes it to the next person standing in the line. Once the pillow reaches the end of the line, the direction changes, and people continue passing the pillow in the opposite direction. For example, once the pillow reaches the nth person they pass it to the n - 1th person, then to the n - 2th person and so on. Given the two positive integers n and time, return the index of the person holding the pillow after time seconds.
Pass the Pillow
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Examples
n = 4, time = 52People pass the pillow in the following way: 1 -> 2 -> 3 -> 4 -> 3 -> 2. After five seconds, the 2nd person is holding the pillow.
n = 3, time = 23People pass the pillow in the following way: 1 -> 2 -> 3. After two seconds, the 3rd person is holding the pillow.
Constraints
2 <= n <= 10001 <= time <= 1000How Interview Coder Helps with Leetcode Problems
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Frequently Asked Questions
Common questions about solving Pass the Pillow and using Interview Coder during coding interviews.
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