From 9ff5de1874cb32f30a41566dfd5a8af0d7bf5820 Mon Sep 17 00:00:00 2001 From: Areti Date: Mon, 24 Feb 2025 23:49:46 +0200 Subject: [PATCH] factorial dana --- fact.dana | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 fact.dana diff --git a/fact.dana b/fact.dana new file mode 100644 index 0000000..e91796f --- /dev/null +++ b/fact.dana @@ -0,0 +1,22 @@ +def factorial is int: n as int + if n <= 1: + return: 1 + else: + return: n * factorial(n - 1) + +def main + var num result is int + + writeString: "Enter a number: " + num := readInteger() + + if num < 0: + writeString: "Factorial is not defined for negative numbers.\n" + else: + result := factorial(num) + writeString: "Factorial of " + writeInteger: num + writeString: " is " + writeInteger: result + writeString: ".\n" +