Watch 10 video solutions for Minimum Number of Operations to Satisfy Conditions, a medium level problem involving Array, Dynamic Programming, Matrix. This walkthrough by NeetCodeIO has 18,440 views views. Want to try solving it yourself? Practice on FleetCode or read the detailed text solution.
You are given a 2D matrix grid of size m x n. In one operation, you can change the value of any cell to any non-negative number. You need to perform some operations such that each cell grid[i][j] is:
grid[i][j] == grid[i + 1][j] (if it exists).grid[i][j] != grid[i][j + 1] (if it exists).Return the minimum number of operations needed.
Example 1:
Input: grid = [[1,0,2],[1,0,2]]
Output: 0
Explanation:
All the cells in the matrix already satisfy the properties.
Example 2:
Input: grid = [[1,1,1],[0,0,0]]
Output: 3
Explanation:
The matrix becomes [[1,0,1],[1,0,1]] which satisfies the properties, by doing these 3 operations:
grid[1][0] to 1.grid[0][1] to 0.grid[1][2] to 1.Example 3:
Input: grid = [[1],[2],[3]]
Output: 2
Explanation:
There is a single column. We can change the value to 1 in each cell using 2 operations.
Constraints:
1 <= n, m <= 10000 <= grid[i][j] <= 9