Package g2401_2500.s2500_delete_greatest_value_in_each_row

Class Solution

java.lang.Object

g2401_2500.s2500_delete_greatest_value_in_each_row.Solution

public class Solution
extends java.lang.Object

2500 - Delete Greatest Value in Each Row.

Easy

You are given an m x n matrix grid consisting of positive integers.

Perform the following operation until grid becomes empty:

• Delete the element with the greatest value from each row. If multiple such elements exist, delete any of them.
• Add the maximum of deleted elements to the answer.

Note that the number of columns decreases by one after each operation.

Return the answer after performing the operations described above.

Example 1:

Input: grid = [[1,2,4],[3,3,1]]

Output: 8

Explanation: The diagram above shows the removed values in each step.

• In the first operation, we remove 4 from the first row and 3 from the second row (notice that, there are two cells with value 3 and we can remove any of them). We add 4 to the answer.

• In the second operation, we remove 2 from the first row and 3 from the second row. We add 3 to the answer.

• In the third operation, we remove 1 from the first row and 1 from the second row. We add 1 to the answer.

The final answer = 4 + 3 + 1 = 8.

Example 2:

Input: grid = [[10]]

Output: 10

Explanation: The diagram above shows the removed values in each step.

• In the first operation, we remove 10 from the first row. We add 10 to the answer.

The final answer = 10.

Constraints:

• m == grid.length
• n == grid[i].length
• 1 <= m, n <= 50
• 1 <= grid[i][j] <= 100

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	deleteGreatestValue(int[][] grid)

Methods inherited from class java.lang.Object

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

Constructor Details

Solution

public Solution()

Method Details

deleteGreatestValue

public int deleteGreatestValue(int[][] grid)