Package g1801_1900.s1827_minimum_operations_to_make_the_array_increasing

Class Solution

  • public class Solution
extends Object
    1827 - Minimum Operations to Make the Array Increasing.

    Easy

    You are given an integer array nums ( 0-indexed ). In one operation, you can choose an element of the array and increment it by 1.

    • For example, if nums = [1,2,3], you can choose to increment nums[1] to make nums = [1, **3** ,3].

    Return the minimum number of operations needed to make nums strictly increasing.

    An array nums is strictly increasing if nums[i] < nums[i+1] for all 0 <= i < nums.length - 1. An array of length 1 is trivially strictly increasing.

    Example 1:

    Input: nums = [1,1,1]

    Output: 3

    Explanation: You can do the following operations:

    1. Increment nums[2], so nums becomes [1,1, 2 ].

    2. Increment nums[1], so nums becomes [1, 2 ,2].

    3. Increment nums[2], so nums becomes [1,2, 3 ].

    Example 2:

    Input: nums = [1,5,2,4,1]

    Output: 14

    Example 3:

    Input: nums = [8]

    Output: 0

    Constraints:

    • 1 <= nums.length <= 5000
    • 1 <= nums[i] <= 104

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • minOperations

        public int minOperations​(int[] nums)