[20250702] BOJ / G4 / 카드 정렬하기 / 설진영

Author: Seol-JY

Seol-JY/202507/02 BOJ G4 카드 정렬하기.md

@@ -0,0 +1,30 @@
+```java
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.util.PriorityQueue;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int n = Integer.parseInt(br.readLine());
+
+        PriorityQueue<Long> pq = new PriorityQueue<>();
+        for (int i = 0; i < n; i++) {
+            pq.add(Long.parseLong(br.readLine()));
+        }
+
+        long total = 0;
+        while (pq.size() > 1) {
+            long a = pq.poll();
+            long b = pq.poll();
+            long sum = a + b;
+            total += sum;
+            pq.add(sum);
+        }
+
+        System.out.println(total);
+    }
+}
+
+```