司踹普NG OA新鲜出炉，含图！求加米

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1. public class BetaInvites {
   
2.   Set<String> bolts = new HashSet<>();
   
3.   Map<String, Long> ave;
   
4.   // User:  <Date without second, req counts>
   
5.   Map<String, Map<Date, Integer>> detect = new HashMap<>();
   
6.   Map<String, Long[]> status = new HashMap<>();
   
7. 
   
8.   public void process_invites(int N, String csvfilepath) throws IOException {
   
9.     try (BufferedReader fb = Files.newBufferedReader(Paths.get(csvfilepath))) {
   
10.       String line;
    
11.       while ((line = fb.readLine()) != null && N-- > 0) {
    
12.         parseLog(line);
    
13.       }
    
14.       System.out.println(handle());
    
15.     } catch (ParseException e) {
    
16.       e.printStackTrace();
    
17.     }
    
18.   }
    
19. 
    
20.   private void parseLog(String log) throws ParseException {
    
21.     String[] l = log.split(",");
    
22.     long t = Long.valueOf(l[0]);
    
23.     String eventType = l[1], userId = l[2];
    
24. 
    
25.     if (bolts.contains(userId)) return;
    
26.     status.putIfAbsent(userId, new Long[] {null, null, null});
    
27. 
    
28.     if (eventType == "invite_requested") {
    
29.       Date d = new Date(t);
    
30.       d.setSeconds(0);
    
31.       if (!detect.containsKey(userId)) {
    
32.         detect.put(userId, new HashMap<>());
    
33.         detect.get(userId).put(d, 1);
    
34.       } else {
    
35.         Map<Date, Integer> count = detect.get(userId);
    
36.         count.put(d, count.getOrDefault(d, 0) + 1);
    
37.         if (count.get(d) >= 5) bolts.add(userId);
    
38.       }
    
39. 
    
40.       if (status.get(userId)[0] != null) status.get(userId)[0] = t;
    
41.     } else if (eventType == "invite_send") {
    
42.       status.get(userId)[1] = t;
    
43.     } else if (eventType == "invite_activated") {
    
44.       Long a = status.get(userId)[0], b = status.get(userId)[1];
    
45.       if (a != null && b != null && a < b && b < t) ave.put(userId, t - a);
    
46.     }
    
47.   }
    
48. 
    
49.   public String handle() throws ParseException {
    
50.     Long sum = 0l, count = 0l;
    
51.     for (Map.Entry<String, Long> e : ave.entrySet()) {
    
52.       if (bolts.contains(e.getKey())) continue;
    
53.       sum += e.getValue();
    
54.       count++;
    
55.     }
    
56.     return bolts.size() + " " + sum / count;
    
57.   }
    
58. }

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