From 8dd80213270d82ed10c946268ac37f7057a96c49 Mon Sep 17 00:00:00 2001
From: sh0723 <pshpark12345@naver.com>
Date: Wed, 2 Sep 2026 17:00:54 +0900
Subject: [PATCH] =?UTF-8?q?1269=20:=20=EB=8C=80=EC=B9=AD=20=EC=B0=A8?=
 =?UTF-8?q?=EC=A7=91=ED=95=A9=20solve?=
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---
 src/week6/BOJ1269/BOJ1269_V1.cpp | 34 ++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 src/week6/BOJ1269/BOJ1269_V1.cpp

diff --git a/src/week6/BOJ1269/BOJ1269_V1.cpp b/src/week6/BOJ1269/BOJ1269_V1.cpp
new file mode 100644
index 0000000..f00b5dc
--- /dev/null
+++ b/src/week6/BOJ1269/BOJ1269_V1.cpp
@@ -0,0 +1,34 @@
+#include <bits/stdc++.h>
+using namespace std;
+int main() {
+
+    ios_base::sync_with_stdio(false);
+    cin.tie(nullptr);
+    cout.tie(nullptr);
+
+    map<int, int> m;
+    int a,b;
+    cin >> a >> b;
+    for (int i=0; i<a; i++) {
+        int num;
+        cin >> num;
+        m[num] = 1;
+    }
+    for (int i=0; i<b; i++) {
+        int num;
+        cin >> num;
+        if (m[num]) {
+            m.erase(num);
+        } else {
+            m[num] = 1;
+        }
+    }
+
+    cout << m.size() << '\n';
+
+
+
+
+
+    return 0;
+}
\ No newline at end of file