java.lang.Object
g2001_2100.s2033_minimum_operations_to_make_a_uni_value_grid.Solution

public class Solution extends Object
2033 - Minimum Operations to Make a Uni-Value Grid\. Medium You are given a 2D integer `grid` of size `m x n` and an integer `x`. In one operation, you can **add** `x` to or **subtract** `x` from any element in the `grid`. A **uni-value grid** is a grid where all the elements of it are equal. Return _the **minimum** number of operations to make the grid **uni-value**_. If it is not possible, return `-1`. **Example 1:** ![](https://assets.leetcode.com/uploads/2021/09/21/gridtxt.png) **Input:** grid = \[\[2,4],[6,8]], x = 2 **Output:** 4 **Explanation:** We can make every element equal to 4 by doing the following: - Add x to 2 once. - Subtract x from 6 once. - Subtract x from 8 twice. A total of 4 operations were used. **Example 2:** ![](https://assets.leetcode.com/uploads/2021/09/21/gridtxt-1.png) **Input:** grid = \[\[1,5],[2,3]], x = 1 **Output:** 5 **Explanation:** We can make every element equal to 3. **Example 3:** ![](https://assets.leetcode.com/uploads/2021/09/21/gridtxt-2.png) **Input:** grid = \[\[1,2],[3,4]], x = 2 **Output:** -1 **Explanation:** It is impossible to make every element equal. **Constraints:** * `m == grid.length` * `n == grid[i].length` * 1 <= m, n <= 105 * 1 <= m * n <= 105 * 1 <= x, grid[i][j] <= 104
  • Constructor Details

    • Solution

      public Solution()
  • Method Details

    • minOperations

      public int minOperations(int[][] grid, int x)