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Greatest common divisor: Difference between revisions
Added iterative version
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=={{header|c sharp|C#}}==
===Iterative===
<lang csharp>
static void Main()
{
Console.WriteLine("GCD of {0} and {1} is {2}", 1, 1, gcd(1, 1));
Console.WriteLine("GCD of {0} and {1} is {2}", 1, 10, gcd(1, 10));
Console.WriteLine("GCD of {0} and {1} is {2}", 10, 100, gcd(10, 100));
Console.WriteLine("GCD of {0} and {1} is {2}", 5, 50, gcd(5, 50));
Console.WriteLine("GCD of {0} and {1} is {2}", 8, 24, gcd(8, 24));
Console.WriteLine("GCD of {0} and {1} is {2}", 36, 17, gcd(36, 17));
Console.WriteLine("GCD of {0} and {1} is {2}", 36, 18, gcd(36, 18));
Console.WriteLine("GCD of {0} and {1} is {2}", 36, 19, gcd(36, 19));
for (int x = 1; x < 36; x++)
{
Console.WriteLine("GCD of {0} and {1} is {2}", 36, x, gcd(36, x));
}
Console.Read();
}
/// <summary>
/// Greatest Common Denominator using Euclidian Algorithm
/// </summary>
static int gcd(int a, int b)
{
while (b != 0) b = a % (a = b);
return a;
}
</lang>
Example output:
<pre>
GCD of 1 and 1 is 1
GCD of 1 and 10 is 1
GCD of 10 and 100 is 10
GCD of 5 and 50 is 5
GCD of 8 and 24 is 8
GCD of 36 and 1 is 1
GCD of 36 and 2 is 2
..
GCD of 36 and 16 is 4
GCD of 36 and 17 is 1
GCD of 36 and 18 is 18
..
..
GCD of 36 and 33 is 3
GCD of 36 and 34 is 2
GCD of 36 and 35 is 1
</pre>
===Recursive===
<lang csharp>
static void Main(string[] args)
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