Package g1101_1200.s1144_decrease_elements_to_make_array_zigzag

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    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

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Integer movesToMakeZigzag(IntArray nums)

      • Methods inherited from class java.lang.Object

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