Create gcd_iterative.py

Add iterative GCD implementation

Author: agarwalpranay02

maths/gcd_iterative.py

@@ -0,0 +1,13 @@
+def gcd_iterative(a: int, b: int) -> int:
+ """
+ Compute the greatest common divisor (GCD) of two numbers iteratively.
+
+ Examples:
+ >>> gcd_iterative(48, 18)
+ 6
+ >>> gcd_iterative(7, 5)
+ 1
+ """
+ while b != 0:
+ a, b = b, a % b
+ return a