المصفوفات الثنائية في البرمجة - التمرين السابع

var matrix = [
    [2, 1, 4],
    [1, 5, 8],
    [6, 3, 1]
];

var keyword;
var found = 0;

write("Search for number: ");
keyword = read();

for (var i=0; i<matrix.length; i++)
{
    for (var j=0; j<matrix[i].length; j++)
    {
        if (matrix[i][j] == keyword)
        {
            found++;
        }
    }
}

if (found > 0)
{
    write("'" + keyword + "' is found " + found + " times.");
}
else
{
    write("'" + keyword + "' is not found.");
}