Working commit.

euclid.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int	euclid(int m, int n)
+{
+	int	remainder;
+
+	remainder = m % n;
+	while(remainder != 0)  {
+		m = n;
+		n = remainder;
+		remainder = m % n;
+	}
+	return(n);		
+}

main.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void main()
+{
+	char	str[100];
+	int	m;
+	int	n;
+	int	answer;
+
+	printf("Enter an integer:");
+	fgets(str, 100, stdin);
+	m = atoi(str);	
+	printf("Enter another integer:");
+	fgets(str, 100, stdin);
+	n = atoi(str);
+	answer = euclid(m, n);
+	printf("The greatest common divisor between these two integers is %d\n", answer);
+}