g2001_2100.s2012_sum_of_beauty_in_the_array

Class Solution

java.lang.Object

g2001_2100.s2012_sum_of_beauty_in_the_array.Solution

public class Solution
extends Object

2012 - Sum of Beauty in the Array.

Medium

You are given a 0-indexed integer array nums. For each index i (1 <= i <= nums.length - 2) the beauty of nums[i] equals:

• 2, if nums[j] < nums[i] < nums[k], for all 0 <= j < i and for all i < k <= nums.length - 1.
• 1, if nums[i - 1] < nums[i] < nums[i + 1], and the previous condition is not satisfied.
• 0, if none of the previous conditions holds.

Return the sum of beauty of all nums[i] where 1 <= i <= nums.length - 2.

Example 1:

Input: nums = [1,2,3]

Output: 2

Explanation: For each index i in the range 1 <= i <= 1: - The beauty of nums[1] equals 2.

Example 2:

Input: nums = [2,4,6,4]

Output: 1

Explanation: For each index i in the range 1 <= i <= 2:

• The beauty of nums[1] equals 1.

• The beauty of nums[2] equals 0.

Example 3:

Input: nums = [3,2,1]

Output: 0

Explanation: For each index i in the range 1 <= i <= 1: - The beauty of nums[1] equals 0.

Constraints:

• 3 <= nums.length <= 105
• 1 <= nums[i] <= 105

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
int	sumOfBeauties(int[] nums)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Solution

public Solution()

Method Detail

sumOfBeauties

public int sumOfBeauties(int[] nums)