fork(1) download
copy 
  1. import java.time.ZoneId;
  2. import java.time.ZonedDateTime;
  3. import java.util.Scanner;
  4.  
  5. public class Main {
  6.  
  7.     static final long NANOS_PER_SECOND = 1000_000_000L;
  8.     static final long NANOS_PER_MINUTE = NANOS_PER_SECOND * 60;
  9.     static final long NANOS_PER_HOUR = NANOS_PER_MINUTE * 60;
  10.     static final long NANOS_PER_WORKED_DAY = NANOS_PER_HOUR * 8;
  11.     static final long NANOS_PER_HALF_DAY = NANOS_PER_HOUR * 12;
  12.     static final long NANOS_PER_DAY = NANOS_PER_HOUR * 24;
  13.  
  14.     public static void main(String[] args) {
  15.         try (Scanner sc = new Scanner(System.in)) {
  16.             sc.useDelimiter("(?i)([ :]|(?<=\\d)(?=[ap]))");
  17.  
  18.             // Read input
  19.             long checkIn = sc.nextInt() * NANOS_PER_HOUR + sc.nextInt() * NANOS_PER_MINUTE;
  20.             if (!sc.hasNextDouble()) {
  21.                 if (sc.next().equalsIgnoreCase("pm")) {
  22.                     checkIn += NANOS_PER_HALF_DAY;
  23.                 }
  24.             }
  25.             long total = (long) (sc.nextDouble() * NANOS_PER_HOUR);
  26.  
  27.             // Do some calculations
  28.             long required = NANOS_PER_WORKED_DAY - total % NANOS_PER_WORKED_DAY;
  29.             long now = ZonedDateTime.now(ZoneId.of("America/Mexico_City")).toLocalTime().toNanoOfDay();
  30.             long elapsed = total + (checkIn > now
  31.                                   ? NANOS_PER_DAY - checkIn + now
  32.                                   : now - checkIn);
  33.  
  34.             // Produce output
  35.             System.out.printf("Tiempo transcurrido: %02dh%02dm%02fs%n",
  36.                     elapsed / NANOS_PER_HOUR,
  37.                     elapsed % NANOS_PER_HOUR / NANOS_PER_MINUTE,
  38.                     elapsed % NANOS_PER_MINUTE / (double) NANOS_PER_SECOND);
  39.             System.out.printf("Salida a las: %02d:%02d%n",
  40.                     (checkIn + required) / NANOS_PER_HOUR,
  41.                     (checkIn + required) % NANOS_PER_HOUR / NANOS_PER_MINUTE);
  42.         }
  43.     }
  44.  
  45. }
Success #stdin #stdout 0.26s 321216KB
comments (?)
stdin
copy 
01:33pm 25.58
stdout
copy 
Tiempo transcurrido: 34h39m19.477000s
Salida a las: 19:58
https://ideone.com/dwxxM2
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!