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0135-candy.adoc

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135. Candy

{leetcode}/problems/candy/[LeetCode - Candy^]

There are N children standing in a line. Each child is assigned a rating value.

You are giving candies to these children subjected to the following requirements:

  • Each child must have at least one candy.

  • Children with a higher rating get more candies than their neighbors.

What is the minimum candies you must give?

Example 1:

Input: [1,0,2]
Output: 5
Explanation: You can allocate to the first, second and third child with 2, 1, 2 candies respectively.

Example 2:

Input: [1,2,2]
Output: 4
Explanation: You can allocate to the first, second and third child with 1, 2, 1 candies respectively.
             The third child gets 1 candy because it satisfies the above two conditions.

思路分析

从左右两端分两次遍历,分别跟左右两边的数比较,自身大则比对应的糖果多一个。最后,取两次比较中,每个座位对应糖果最大值相加即可。

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一刷
link:{sourcedir}/_0135_Candy.java[role=include]