[20260114] BOJ / P5 / 소방서의 고민 / 한종욱

Author: Ukj0ng

Ukj0ng/202601/14 BOJ P5 소방서의 고민.md

@@ -0,0 +1,54 @@
+```
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    private static final int MOD = 40000;
+    private static PriorityQueue<Task> pq;
+    private static int N;
+    private static long t;
+
+    public static void main(String[] args) throws IOException {
+        init();
+
+        while (!pq.isEmpty()) {
+            Task temp = pq.poll();
+            t += temp.a*t+temp.b;
+            t %= MOD;
+        }
+
+        bw.write(t + "\n");
+        bw.flush();
+        bw.close();
+        br.close();
+    }
+
+    private static void init() throws IOException {
+        N = Integer.parseInt(br.readLine());
+
+        pq = new PriorityQueue<>((o1, o2) -> {
+            if (o1.a == 0 && o2.a == 0) return 0;
+            if (o1.a == 0) return 1;
+            if (o2.a == 0) return -1;
+            return Long.compare(o2.a*o1.b, o1.a*o2.b);
+        });
+
+        for (int i = 1; i <= N; i++) {
+            StringTokenizer st = new StringTokenizer(br.readLine());
+            pq.add(new Task(Long.parseLong(st.nextToken()), Long.parseLong(st.nextToken())));
+        }
+    }
+
+    static class Task {
+        long a;
+        long b;
+
+        public Task(long a, long b) {
+            this.a = a;
+            this.b = b;
+        }
+    }
+}
+```