1887. Reduction Operations to Make the Array Elements Equal
https://leetcode.com/problems/reduction-operations-to-make-the-array-elements-equal
Description
Given an integer array nums
, your goal is to make all elements in nums
equal. To complete one operation, follow these steps:
Find the largest value in
nums
. Let its index bei
(0-indexed) and its value belargest
. If there are multiple elements with the largest value, pick the smallesti
.Find the next largest value in
nums
strictly smaller thanlargest
. Let its value benextLargest
.Reduce
nums[i]
tonextLargest
.
Return the number of operations to make all elements in nums
equal.
Example 1:
**Input:** nums = [5,1,3]
**Output:** 3
**Explanation:** It takes 3 operations to make all elements in nums equal:
1. largest = 5 at index 0. nextLargest = 3. Reduce nums[0] to 3. nums = [3,1,3].
2. largest = 3 at index 0. nextLargest = 1. Reduce nums[0] to 1. nums = [1,1,3].
3. largest = 3 at index 2. nextLargest = 1. Reduce nums[2] to 1. nums = [1,1,1].
Example 2:
**Input:** nums = [1,1,1]
**Output:** 0
**Explanation:** All elements in nums are already equal.
Example 3:
**Input:** nums = [1,1,2,2,3]
**Output:** 4
**Explanation:** It takes 4 operations to make all elements in nums equal:
1. largest = 3 at index 4. nextLargest = 2. Reduce nums[4] to 2. nums = [1,1,2,2,2].
2. largest = 2 at index 2. nextLargest = 1. Reduce nums[2] to 1. nums = [1,1,1,2,2].
3. largest = 2 at index 3. nextLargest = 1. Reduce nums[3] to 1. nums = [1,1,1,1,2].
4. largest = 2 at index 4. nextLargest = 1. Reduce nums[4] to 1. nums = [1,1,1,1,1].
Constraints:
1 <= nums.length <= 5 * 104
1 <= nums[i] <= 5 * 104
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