From cf292e1e276e283504f5a6391f59c08ab2ec19aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20A=2E=20Ortega=20Froysa?=
 <nicolas@ortegas.org>
Date: Mon, 17 Oct 2022 16:40:39 +0200
Subject: [PATCH] Add Hanoi C example.

---
 2/SAD/hanoi.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 2/SAD/hanoi.c

diff --git a/2/SAD/hanoi.c b/2/SAD/hanoi.c
new file mode 100644
index 0000000..3e8168b
--- /dev/null
+++ b/2/SAD/hanoi.c
@@ -0,0 +1,33 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+void print_hanoi(int n)
+{
+	if(n == 2)
+	{
+		printf("1\n2\n1\n");
+	}
+	else
+	{
+		print_hanoi(n-1);
+		printf("%d\n", n);
+		print_hanoi(n-1);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	if (argc != 2)
+	{
+		fprintf(stderr, "Give me a number!!!\n");
+		return EXIT_FAILURE;
+	}
+	int n = atoi(argv[1]);
+	if (n < 2)
+	{
+		fprintf(stderr, "Number must be greater than 1!\n");
+		return EXIT_FAILURE;
+	}
+	print_hanoi(n);
+	return EXIT_SUCCESS;
+}