From a16bf9b6ecc1b6d4009626d2b961b5f9c9f10a88 Mon Sep 17 00:00:00 2001
From: Lajat5 <64376519+Lazeeez@users.noreply.github.com>
Date: Thu, 4 Nov 2021 10:53:54 +0530
Subject: [PATCH] Update geometry/graham_scan_functions.hpp

Co-authored-by: David Leal <halfpacho@gmail.com>
---
 geometry/graham_scan_functions.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/geometry/graham_scan_functions.hpp b/geometry/graham_scan_functions.hpp
index 9a92919eb..06cd4259c 100644
--- a/geometry/graham_scan_functions.hpp
+++ b/geometry/graham_scan_functions.hpp
@@ -63,7 +63,7 @@ namespace geometry::grahamscan {
     * @param S Stack to be used for the process.
     * @returns @param Point Co-ordinates of the Point <int, int>
     *******************************************************************************/
-    Point nextToTop(std::stack<Point> &S) {
+    Point nextToTop(const std::stack<Point> &S) {
         Point p = S.top();
         S.pop();
         Point res = S.top();