g1101_1200.s1144_decrease_elements_to_make_array_zigzag

Class Solution

java.lang.Object

g1101_1200.s1144_decrease_elements_to_make_array_zigzag.Solution

public class Solution
extends Object

1144 - Decrease Elements To Make Array Zigzag.

Medium

Given an array nums of integers, a move consists of choosing any element and decreasing it by 1.

An array A is a zigzag array if either:

• Every even-indexed element is greater than adjacent elements, ie. A[0] > A[1] < A[2] > A[3] < A[4] > ...
• OR, every odd-indexed element is greater than adjacent elements, ie. A[0] < A[1] > A[2] < A[3] > A[4] < ...

Return the minimum number of moves to transform the given array nums into a zigzag array.

Example 1:

Input: nums = [1,2,3]

Output: 2

Explanation: We can decrease 2 to 0 or 3 to 1.

Example 2:

Input: nums = [9,6,1,6,2]

Output: 4

Constraints:

• 1 <= nums.length <= 1000
• 1 <= nums[i] <= 1000

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
int	movesToMakeZigzag(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

movesToMakeZigzag

public int movesToMakeZigzag(int[] nums)