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| 1 | import java.util.*; | |
| 2 | import java.util.regex.Matcher; | |
| 3 | import java.util.regex.Pattern; | |
| 4 | import java.util.stream.Collectors; | |
| 5 | ||
| 6 | public class Race_02 {
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| 7 | public static void main(String[] args) {
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| 8 | Scanner scanner = new Scanner(System.in); | |
| 9 | //"George, Peter, Bill, Tom" -> ", " -> [George, Peter, Bill, Tom] | |
| 10 | List<String> racers = Arrays.stream(scanner.nextLine().split(",\\s+")).collect(Collectors.toList());
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| 11 | Map<String, Integer> racersDistances = new LinkedHashMap<>(); | |
| 12 | //име на състезател -> дистанция (0) | |
| 13 | racers.forEach(racer -> racersDistances.put(racer, 0)); | |
| 14 | ||
| 15 | //Регекси | |
| 16 | String regexLetter = "[A-Za-z]+"; | |
| 17 | Pattern patternName = Pattern.compile(regexLetter); | |
| 18 | ||
| 19 | String regexNumber = "[0-9]"; | |
| 20 | Pattern patternDistance = Pattern.compile(regexNumber); | |
| 21 | ||
| 22 | String input = scanner.nextLine(); | |
| 23 | while (!input.equals("end of race")) {
| |
| 24 | //"G4e@55or%6g6!68e!!@" | |
| 25 | //всички букви -> име на състезателя | |
| 26 | StringBuilder nameBuilder = new StringBuilder(); | |
| 27 | Matcher matcherName = patternName.matcher(input); | |
| 28 | while(matcherName.find()) {
| |
| 29 | nameBuilder.append(matcherName.group()); | |
| 30 | } | |
| 31 | //всичи цифри -> сумираме = дистанция на състезателя | |
| 32 | int distance = 0; | |
| 33 | Matcher matcherDistance = patternDistance.matcher(input); | |
| 34 | while(matcherDistance.find()) {
| |
| 35 | distance += Integer.parseInt(matcherDistance.group()); | |
| 36 | } | |
| 37 | ||
| 38 | String racerName = nameBuilder.toString(); | |
| 39 | if(racersDistances.containsKey(racerName)) {
| |
| 40 | int currentDistance = racersDistances.get(racerName); | |
| 41 | racersDistances.put(racerName, currentDistance + distance); | |
| 42 | } | |
| 43 | ||
| 44 | input = scanner.nextLine(); | |
| 45 | } | |
| 46 | ||
| 47 | //sorting map по descending distance (value) | |
| 48 | /*List<String> firstThreeNames = racersDistances.entrySet().stream() | |
| 49 | .sorted(Map.Entry.comparingByValue(Comparator.reverseOrder())) //sorted map by value | |
| 50 | .limit(3) | |
| 51 | .map(entry -> entry.getKey()) | |
| 52 | .collect(Collectors.toList());*/ | |
| 53 | ||
| 54 | Map<String, Integer> sortedMap = racersDistances.entrySet().stream() | |
| 55 | .sorted(Map.Entry.comparingByValue(Comparator.reverseOrder())) //sorted map by value | |
| 56 | .limit(3) | |
| 57 | .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue, (a1, a2) -> a1, LinkedHashMap::new)); | |
| 58 | ||
| 59 | List<String> firstThreeNames = new ArrayList<>(); | |
| 60 | sortedMap.entrySet().forEach(entry -> firstThreeNames.add(entry.getKey())); | |
| 61 | ||
| 62 | ||
| 63 | //["George", "Peter", "Pesho"] | |
| 64 | System.out.println("1st place: " + firstThreeNames.get(0));
| |
| 65 | System.out.println("2nd place: " + firstThreeNames.get(1));
| |
| 66 | System.out.println("3rd place: " + firstThreeNames.get(2));
| |
| 67 | ||
| 68 | } | |
| 69 | } |