How to print the 5 largest elements of a matrix with their indices?

Question

C++ / C#

Display the 5 largest elements of the matrix with their indices, but I don’t know how to implement it, at least the idea

for (int i = 0; i < 5; ++i)
    {
        int temp_max_value = 0;
        for (int j = 0; j < row; ++j)
        {
            for (int k = 0; k < column; ++k)
            {
                if(matrix[j][k] > temp_max_value)
                {
                    temp_max_value = matrix[j][k];
                }
            }
        }
        printf("Max value %d\n", temp_max_value);
    }

Answer 1

Idea: find the largest number of each line, drive them into a separate array, sort in ascending order and take the five extreme numbers.