From d66152a01b9aa507ca986fb9760d050d6579d059 Mon Sep 17 00:00:00 2001
From: Zengtudor <Zengtudor@outlook.com>
Date: Tue, 12 Aug 2025 20:54:15 +0800
Subject: [PATCH] update

---
 src/8/12/group-anagrams.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/8/12/group-anagrams.cpp b/src/8/12/group-anagrams.cpp
index 13ef38c..53af385 100644
--- a/src/8/12/group-anagrams.cpp
+++ b/src/8/12/group-anagrams.cpp
@@ -15,7 +15,7 @@ public:
             m[ns].push_back(std::move(strs[i]));
         }
         vector<vector<string>> ans;
-        for(auto s :m){
+        for(auto &s :m){
             ans.push_back(std::move(s.second));
         }
         return ans;