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C# mod operator

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Visual Basic .NET

C# mod operator

Dave Green

12yAsked Feb 14, 2014, 7:41 AM3.9kVisual Basic .NET

Hi I' a bit unsure of this what would be the best way to do the following example?

There are four whole numbers below the number 14 that are multiples of either 4 or 7.
They are: 4, 7, 8 and 12 The sum of these numbers is 31 Write a C# program to find all the
multiples of either 4 or 7 between, and including, 100 and 120. Sum the found multiples and print
the total out to the console.
Also print out how long your program took to execute.

Thanks alot!!!

1 Reply

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Vulpes12y ago
Accepted answer
Try this:

using System;
using System.Diagnostics;

class Program
{
static void Main()
{
Stopwatch sw = Stopwatch.StartNew();
int sum = 0;

for(int i = 100; i <= 120; i++)
{
if ( (i % 4) == 0 || (i % 7) == 0) sum += i;
}

Console.WriteLine("The sum of numbers which are multiples of 4 or 7 is {0}", sum);
sw.Stop();
Console.WriteLine("The program took {0} milliseconds to execute", sw.ElapsedMilliseconds);
Console.ReadKey();
}
}