diff --git "a/Programmers/\355\217\260\354\274\223\353\252\254.cpp" "b/Programmers/\355\217\260\354\274\223\353\252\254.cpp"
new file mode 100644
index 0000000..00ee6e8
--- /dev/null
+++ "b/Programmers/\355\217\260\354\274\223\353\252\254.cpp"
@@ -0,0 +1,10 @@
+#include <vector>
+#include <unordered_set>
+
+using namespace std;
+
+int solution(vector<int> nums) {
+    unordered_set<int> s(nums.begin(), nums.end());
+    
+    return nums.size() / 2 < s.size() ? nums.size() / 2 : s.size();
+}
\ No newline at end of file