first commit

J07084 - THỜI GIAN ONLINE LIÊN TỤC.java

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+import java.util.*;
+import java.io.*;
+import java.text.*;
+
+public class Main {
+    static class ob{
+        String full, start, end;
+        long total;
+        public ob(String n, String s, String e){
+            full = n;
+            start = s;
+            end = e;
+            SimpleDateFormat f = new SimpleDateFormat("dd/mm/yyyy HH:mm:ss");
+            try{
+                total = f.parse(end).getTime() - f.parse(start).getTime();
+            }catch(ParseException ex){
+
+            }
+        }
+
+        @Override
+        public String toString(){
+            return full + ' ' + total/60000;
+        }
+    }
+    public static void main(String[] args) throws IOException {
+        Scanner sc = new Scanner(new File("ONLINE.in"));
+        // Scanner sc = new Scanner(System.in);
+        int n = sc.nextInt();
+        ArrayList<ob> a = new ArrayList<>();
+        sc.nextLine();
+        for(int i=0;i<n;i++) a.add(new ob(sc.nextLine(), sc.nextLine(), sc.nextLine()));
+        a.sort((ob x, ob y) -> {
+            if(x.total == y.total) return x.full.compareTo(y.full);
+            return y.total > x.total ? 1 : -1;
+        });
+        a.forEach(e -> System.out.println(e));
+    }
+}