From d11b7347b650c225e31b1d46ec0f8800a8ce1fd9 Mon Sep 17 00:00:00 2001
From: shellhub <shellhub.me@gmail.com>
Date: Thu, 24 Oct 2019 11:54:37 +0800
Subject: [PATCH] using recursion

---
 Maths/PowRecursion.java | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Maths/PowRecursion.java b/Maths/PowRecursion.java
index 673b8fdee..243548708 100644
--- a/Maths/PowRecursion.java
+++ b/Maths/PowRecursion.java
@@ -17,10 +17,10 @@ public class PowRecursion {
      * @return the value {@code a}<sup>{@code b}</sup>.
      */
     public static long pow(int a, int b) {
-        int result = 1;
-        for (int i = 1; i <= b; i++) {
-            result *= a;
+        if (b == 0) {
+            return 1;
+        } else {
+            return a * pow(a, b - 1);
         }
-        return result;
     }
 }