1 files changed, 17 insertions, 1 deletions
diff --git a/05/main.c b/05/main.c
index 68140cf..6c19317 100644
--- a/05/main.c
+++ b/05/main.c
@@ -1,3 +1,19 @@
+typedef unsigned long va_list;
+#define va_start(list, arg) ((list) = (unsigned long)&arg)
+#define va_arg(list, type) (*((type *)(list += ((sizeof(type) + 7) & 0xfffffffffffffff8))))
+#define va_end(list)
+
+int sum(int n, ...) {
+	va_list args;
+	int i;
+	int total = 0;
+	va_start(args, n);
+	for (i = 0; i < n; ++i) {
+		total += va_arg(args, int);
+	}
+	return total;
+}
+
 long factorial(long x) {
 	if (x == 0) {
 		return 1;
@@ -28,6 +44,6 @@ int f() {
 }
 
 int main(int argc, char **argv) {	
-	return fibonacci(20);
+	return sum(3, -100, 200, -300);
 }