diff --git a/Basic_Of_Algorithm/src/test/parking.java b/Basic_Of_Algorithm/src/test/parking.java
new file mode 100644
index 0000000..9aec947
--- /dev/null
+++ b/Basic_Of_Algorithm/src/test/parking.java
@@ -0,0 +1,76 @@
+package test;
+
+import java.util.*;
+
+public class parking {
+
+	public static void main(String[] args) {
+		
+			int[]fees= {180, 5000, 10, 600};
+			String[]records = {"05:34 5961 IN", "06:00 0000 IN", "06:34 0000 OUT", "07:59 5961 OUT", "07:59 0148 IN", "18:59 0000 IN", "19:09 0148 OUT", "22:59 5961 IN", "23:00 5961 OUT"}; 
+		
+		   HashMap<String,Integer> map = new HashMap<>();
+		   TreeMap<String,Integer> tree = new TreeMap<>();
+			
+		    for(String s : records) {
+				
+				String []temp = s.split(" ");
+				int time = timeChange(temp[0]);
+				String num = temp[1];
+				String action = temp[2];
+				
+				if(action.equals("IN")) {
+					if(!tree.containsKey(num)) tree.put(num, 0);
+					map.put(num, time);
+				}
+				else {
+					
+					tree.put(num, tree.get(num) + (time - map.get(num)));
+					map.remove(num);
+				}
+			}
+				
+			if(!map.isEmpty()) {
+				for(String key : map.keySet()) {
+					tree.put(key, tree.get(key) + (23*60+59) - map.get(key));
+					
+				}
+			}
+			
+			ArrayList<Integer>answerList = new ArrayList<>();
+			
+			for(String key : tree.keySet()) {
+				
+				double time = tree.get(key);
+				
+				if(time<=fees[0]) {
+					answerList.add(fees[1]);
+		        }else {
+					time = time - fees[0];
+					double cal = time/fees[2];
+					int extraTime = (int) Math.ceil(cal);
+					int fee = (extraTime * fees[3]) + fees[1];
+					answerList.add(fee);			
+				}
+			}
+				
+			int[]answer = new int[answerList.size()];
+			for(int i=0;i<answerList.size();i++)answer[i] = answerList.get(i);
+			
+			for(int i : answer )System.out.println(i);
+				
+			}
+			static int timeChange(String str) {
+				
+				String[]temp = str.split(":");
+				
+				int hour = Integer.parseInt(temp[0]) * 60;
+				int min = Integer.parseInt(temp[1]) + hour;
+				
+				return min;
+				
+				
+			}
+			
+		}
+