1 files changed, 31 insertions, 0 deletions
diff --git a/l/fibo.lang b/l/fibo.lang
new file mode 100644
index 0000000..e1a7a4a
--- /dev/null
+++ b/l/fibo.lang
@@ -0,0 +1,31 @@
+func printnum(int n) {
+	if (n == 0) {putc('0'); return;}
+	if (n < 0) {putc('-'); n = -n;}
+	while (n > 0) {
+		putc('0' + char(n % 10));
+		n = n / 10;
+	}
+}
+
+func int fibo(int n) {
+	int a := 0;
+	int b := 1;
+	int i := 0;
+	while (i < n) {
+		int c := a + b;
+		a = b;
+		b = c;
+		i = i + 1;
+	}
+	return b;
+}
+
+func int main() {
+	int i := 0;
+	while (i <= 20) {
+		printnum(fibo(i));
+		putc('\n');
+		i = i + 1;
+	}
+	return 0;
+}