135. Candy | LeetCode | Top Interview 150 | Coding Questions
This article discusses a coding problem from LeetCode called
Why it matters
This problem is a common coding interview question that tests a candidate's ability to solve a problem using an efficient algorithm.
Key Points
- 1The problem involves distributing candies to children based on their ratings
- 2The solution uses two passes through the ratings array to determine the minimum number of candies needed
- 3The first pass assigns 1 candy to each child, then increases the number of candies for children with a higher rating than the previous child
Details
The Candy problem on LeetCode requires distributing candies to a group of children, where each child has a rating. The goal is to find the minimum number of candies needed such that each child gets at least one candy, and any child with a higher rating than the child next to them gets more candies. The solution provided in the article uses a two-pass approach. In the first pass, it assigns 1 candy to each child, then increases the number of candies for children with a higher rating than the previous child. In the second pass, it compares the current child's rating to the previous child's rating and updates the number of candies accordingly. The final result is the sum of all the candies distributed.
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