From 8d409b6f7f7611d7ec71e2aaeca664d1d8916db8 Mon Sep 17 00:00:00 2001
From: rngsurrounded <kircore970@gmail.com>
Date: Mon, 3 Mar 2025 21:23:50 +0900
Subject: [PATCH] history fix

---
 .../CompetitionSession/modules/TaskSolution/index.tsx | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx b/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx
index 1bf87d1..5267dbb 100644
--- a/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx
+++ b/services/frontend/src/pages/CompetitionSession/modules/TaskSolution/index.tsx
@@ -71,12 +71,11 @@ const TaskSolution: React.FC<TaskSolutionProps> = ({
   }, [task.id, solutionHistory]);
 
   useEffect(() => {
-    if (solutionHistory.length > 0 && displayedSolution) {
-      const latestSolution = solutionHistory[solutionHistory.length - 1];
-      
-      if (latestSolution.id !== displayedSolution.id) {
-        setDisplayedSolution(latestSolution);
-      }
+    if (solutionHistory.length > 0 && 
+        (!displayedSolution || 
+         (solutionHistory[solutionHistory.length - 1].id !== displayedSolution.id &&
+          displayedSolution.id === solutionHistory[solutionHistory.length - 2]?.id))) {
+      setDisplayedSolution(solutionHistory[solutionHistory.length - 1]);
     }
   }, [solutionHistory, displayedSolution]);