[20251212] PGM / LV2 / 주차 요금 계산 / 이인희

LiiNi-coder/202512/12 PGM 주차 요금 계산.md

@@ -0,0 +1,62 @@
+```java
+import java.util.*;
+import java.io.*;
+
+class Solution {
+    public int[] solution(int[] fees, String[] records) {
+        Map<String, Integer> totalTime = new TreeMap<>();
+        Map<String, Integer> inTime = new HashMap<>();
+
+        for(String record : records){
+            String[] parts = record.split(" ");
+            int hh = Integer.parseInt(parts[0].substring(0, 2));
+            int mm = Integer.parseInt(parts[0].substring(3, 5));
+            int time = hh * 60 + mm;
+
+            String car = parts[1];
+            String type = parts[2];
+            if(type.equals("IN")){
+                inTime.put(car, time);
+            } else {
+                int start = inTime.remove(car);
+                int duration = time - start;
+
+                totalTime.put(car, totalTime.getOrDefault(car, 0) + duration);
+            }
+        }
+        for(String car : inTime.keySet()){
+            int start = inTime.get(car);
+            int end = 23 * 60 + 59;
+            int duration = end - start;
+            totalTime.put(car, totalTime.getOrDefault(car, 0) + duration);
+        }
+
+
+        List<Integer> answerList = new ArrayList<>();
+        int basicTime = fees[0];
+        int basicFee = fees[1];
+        int unitTime = fees[2];
+        int unitFee = fees[3];
+
+        for(int time : totalTime.values()){
+            if(time <= basicTime){
+                answerList.add(basicFee);
+            } else {
+                int extra = time - basicTime;
+                int count = extra / unitTime;
+                if(extra%unitTime != 0){
+                    count++;
+                }
+                answerList.add(basicFee + count * unitFee);
+            }
+        }
+        int[] answer = new int[answerList.size()];
+        for(int i = 0; i < answerList.size(); i++){
+            answer[i] = answerList.get(i);
+        }
+
+        return answer;
+    }
+}
+
+```