1 files changed, 44 insertions, 0 deletions
diff --git a/examples/13.pry b/examples/13.pry
new file mode 100644
index 0000000..839caef
--- /dev/null
+++ b/examples/13.pry
@@ -0,0 +1,44 @@
+import "!stdlib.pry";
+
+let main = () => i64 {
+    /* Iterative Fibonacci using while loop. */
+    let fibonacci_iter = (n: i64) => i64 {
+        let a = 0;
+        let b = 1;
+        let i = 0;
+        while i < n {
+            let temp = b;
+            b = a + b;
+            a = temp;
+            i = i + 1;
+        };
+        return a;
+    };
+
+    /* Recursive GCD using Euclid's algorithm. */
+    let gcd = (a: i64, b: i64) => i64 {
+        if b == 0 {
+            return a;
+        };
+        return gcd(b, a % b);
+    };
+
+    let fib_val = fibonacci_iter(10);
+    printf("%d\n", fib_val);
+
+    let gcd_val = gcd(48, 18);
+    printf("%d\n", gcd_val);
+
+    return 0;
+};
+
+/*
+
+Expected stdout:
+
+55
+6
+
+Expected return: 0
+
+*/