From 6f8eb0f0acb8652afb8771b8fd0d6e723735f774 Mon Sep 17 00:00:00 2001
From: Sandipsinh Rathod <zotbysandip@gmail.com>
Date: Thu, 10 Oct 2024 20:06:06 -0400
Subject: [PATCH] enhance swapChar

---
 main.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/main.cpp b/main.cpp
index 70a5da7..8419513 100644
--- a/main.cpp
+++ b/main.cpp
@@ -100,9 +100,12 @@ bool isValidPlayer(char c) {
 }
 
 void swapChar(char &a, char &b) {
-    char temp = a;
-    a = b;
-    b = temp;
+    if (a == b) {
+        return;
+    }
+    a ^= b;
+    b ^= a;
+    a ^= b;
 }
 
 // Recursively reverse a string
@@ -112,6 +115,7 @@ void reverseString(string &str, int start, int end) {
     }
 
     swapChar(str[start], str[end]);
+
     reverseString(str, start + 1, end - 1);
 }