Start with 1 because multiplying by 0 would always result in 0. int multi = 1; // Use nested 'for' loops to iterate through each element in the 2D array. // The outer loop iterates over the rows. for ...

To check if a value exists in an array, we can loop through its elements. However there is another solution! You can use the INDEX () function, native to Excel and in the case of two-dimensional ...