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arturkraak 2023-11-15 20:58:46 +02:00
commit 45721a5388
Signed by: arturkraak
GPG Key ID: 158000E6751046BB
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29
.gitignore vendored Normal file
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### IntelliJ IDEA ###
out/
!**/src/main/**/out/
!**/src/test/**/out/
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

3
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# Default ignored files
/shelf/
/workspace.xml

6
.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="11" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/Winternship2024.iml" filepath="$PROJECT_DIR$/Winternship2024.iml" />
</modules>
</component>
</project>

6
.idea/vcs.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

20
Winternship2024.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<module type="JAVA_MODULE" version="4">
<component name="NewModuleRootManager" inherit-compiler-output="true">
<exclude-output />
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
</content>
<orderEntry type="inheritedJdk" />
<orderEntry type="sourceFolder" forTests="false" />
<orderEntry type="module-library">
<library>
<CLASSES>
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/24.0.0/annotations-24.0.0.jar!/" />
</CLASSES>
<JAVADOC />
<SOURCES />
</library>
</orderEntry>
</component>
</module>

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resource/match_data.txt Normal file
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abae2255-4255-4304-8589-737cdff61640,1.45,0.75,A
a3815c17-9def-4034-a21f-65369f6d4a56,4.34,0.23,B
2b20e5bb-9a32-4d33-b304-a9c7000e6de9,0.54,1.85,DRAW
de0785e2-58cb-413c-8e4b-1d135857733b,0.67,1.52,DRAW
292b3cd6-b463-4c98-94a7-468e03740af0,1.23,0.79,B
f407bca9-cf69-4343-a489-6cee72384297,3.23,0.31,B
d6c8b5a4-31ce-4bf8-8511-206cfd693440,0.88,1.17,B
0037ae59-61ea-46c3-88a8-8ca705acde10,2.43,0.41,B
5de45517-4312-4596-9702-9277b6d649f2,1.21,0.82,DRAW
5936bc82-8d80-46e1-a583-f4477a68896e,0.12,7.21,A
5cbed318-af08-4046-947e-8e08b9f199c6,1.32,0.74,A
45571462-4c54-4dc7-beb2-8d143d1c6f90,4.23,0.21,B
f6ffad45-a63f-448b-9a14-ec8a10c77a45,6.76,0.13,A

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resource/player_data.txt Normal file
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163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,DEPOSIT,,4000,
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,abae2255-4255-4304-8589-737cdff61640,500,A
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,a3815c17-9def-4034-a21f-65369f6d4a56,200,A
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,2b20e5bb-9a32-4d33-b304-a9c7000e6de9,100,A
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,de0785e2-58cb-413c-8e4b-1d135857733b,300,B
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,292b3cd6-b463-4c98-94a7-468e03740af0,500,A
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,f407bca9-cf69-4343-a489-6cee72384297,50,A
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,WITHDRAW,,200,
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,WITHDRAW,,1000,
163f23ed-e9a9-4e54-a5b1-4e1fc86f12f4,BET,d6c8b5a4-31ce-4bf8-8511-206cfd693440,50,A
4925ac98-833b-454b-9342-13ed3dfd3ccf,DEPOSIT,,400,
4925ac98-833b-454b-9342-13ed3dfd3ccf,BET,0037ae59-61ea-46c3-88a8-8ca705acde10,20,B
4925ac98-833b-454b-9342-13ed3dfd3ccf,DEPOSIT,,100,
4925ac98-833b-454b-9342-13ed3dfd3ccf,BET,5de45517-4312-4596-9702-9277b6d649f2,30,B
4925ac98-833b-454b-9342-13ed3dfd3ccf,BET,5936bc82-8d80-46e1-a583-f4477a68896e,50,B
4925ac98-833b-454b-9342-13ed3dfd3ccf,BET,5cbed318-af08-4046-947e-8e08b9f199c6,40,A
4925ac98-833b-454b-9342-13ed3dfd3ccf,BET,45571462-4c54-4dc7-beb2-8d143d1c6f90,10,A
4925ac98-833b-454b-9342-13ed3dfd3ccf,BET,f6ffad45-a63f-448b-9a14-ec8a10c77a45,33,A
4925ac98-833b-454b-9342-13ed3dfd3ccf,WITHDRAW,,8093,

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src/Main.java Normal file
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import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.*;
import java.util.stream.Stream;
public class Main {
public static Map<String, Player> players = new HashMap<String, Player>();
public static void main(String[] args) {
try {
BufferedReader reader = new BufferedReader(new FileReader("./resource/player_data.txt"));
String line;
while((line = reader.readLine()) != null) {
evaluate(line);
}
reader.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
// RESULTS
int casinoBalanceTotal = 0;
List<String> legitimatePlayers = new ArrayList<String>();
List<String> illegalPlayers = new ArrayList<String>();
for (var player : players.entrySet()) {
if(player.getValue().getInvalid() != null) {
illegalPlayers.add(player.getKey() + " " + player.getValue().getInvalid());
} else {
String winRate = String.format(Locale.GERMAN,"%,.2f", player.getValue().getWinRate());
legitimatePlayers.add(player.getKey() + " " + player.getValue().getCoins() +" "+ winRate);
casinoBalanceTotal += player.getValue().getCasinoBalance();
}
}
// Debug results to console
// System.out.println("Result: ");
// legitimatePlayers.forEach( (p) -> System.out.println(p));
// System.out.println("");
// illegalPlayers.forEach( (p) -> System.out.println(p));
// System.out.println("");
// System.out.println(casinoBalanceTotal);
// Write to results.txt
try {
BufferedWriter writer = new BufferedWriter(new FileWriter("./out/production/Winternship2024/result.txt"));
if(legitimatePlayers.size() > 0) {
for (var player : legitimatePlayers) {
writer.write(player+"\n");
}
} else {
writer.newLine(); // write empty line for the section if there are no players.
}
writer.newLine();
if(illegalPlayers.size() > 0) {
for (var player : illegalPlayers) {
writer.write(player+"\n");
}
} else {
writer.newLine(); // write empty line for the section if there are no players.
}
writer.newLine();
writer.write(new Integer(casinoBalanceTotal).toString());
writer.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static void evaluate(String s) {
String[] lineArr = s.split(",");
String playerID = lineArr[0];
String action = lineArr[1];
int amount = Integer.parseInt(lineArr[3]);
if(!players.containsKey(playerID)) { // Create player Object if it does not exist.
players.put(playerID, new Player());
}
Player player = players.get(playerID);
switch(action) {
case "DEPOSIT":
deposit(player, amount);
break;
case "BET":
String matchID = lineArr[2];
String betSide = lineArr[4];
bet(player, matchID, amount, betSide);
break;
case "WITHDRAW":
withdraw(player, amount);
break;
}
}
public static void deposit(Player player, int amount){
player.addCoins(amount);
}
public static void bet(Player player, String matchID, int amount, String betSide) {
String[] matchArr;
try (Stream<String> lines = Files.lines(Paths.get("./resource/match_data.txt"))) {
String match = lines.filter(str->str.startsWith(matchID)).findFirst().get();
matchArr = match.split(",");
} catch (IOException e) {
throw new RuntimeException(e);
}
double sideA = Double.parseDouble(matchArr[1]);
double sideB = Double.parseDouble(matchArr[2]);
if(amount < player.getCoins()) {
player.subCoins(amount);
} else if(player.getInvalid() == null) {
player.setInvalid("BET "+matchID+" "+amount+" "+ betSide);
}
player.incrementBets();
String outcome = matchArr[3];
switch(outcome) {
case "A":
if(betSide.equals("A")) {
player.addCoins(amount);
player.addCoins((int) Math.floor(amount * sideA));
player.incrementWins();
player.subCasinoBalance((int) Math.floor(amount * sideA));
} else {
player.addCasinoBalance(amount);
}
break;
case "B":
if(betSide.equals("B")) {
player.addCoins(amount);
player.addCoins((int) Math.floor(amount * sideB));
player.incrementWins();
player.subCasinoBalance((int) Math.floor(amount * sideB));
} else {
player.addCasinoBalance(amount);
}
break;
case "DRAW":
player.addCoins(amount);
break;
}
}
public static void withdraw(Player player, int amount) {
if(amount < player.getCoins()) {
player.subCoins(amount);
} else if(player.getInvalid() == null) {
player.setInvalid("WITHDRAW null "+amount+ " null");
}
}
}

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src/Player.java Normal file
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import java.math.BigDecimal;
import java.math.RoundingMode;
public class Player {
public long getCasinoBalance() { return casinoBalance; }
private long casinoBalance = 0; // Casino balance relative to the player. This will be totalled if the player is legitimate.
private long coins = 0;
private int bets = 0;
private int wins = 0;
private String invalid;
public long getCoins() {
return coins;
}
public void addCoins(int amount) { this.coins += amount; }
public void subCoins(int amount) { this.coins -= amount; }
public String getInvalid() {
return invalid;
}
public void setInvalid(String invalid) { this.invalid = invalid; }
public void incrementBets() { this.bets++; }
public void incrementWins() { this.wins++; }
public void addCasinoBalance(int amount) { this.casinoBalance += amount; }
public void subCasinoBalance(int amount) { this.casinoBalance -= amount; }
public BigDecimal getWinRate() {
if(this.bets > 0){
return new BigDecimal((double) this.wins/this.bets).setScale(2, RoundingMode.DOWN);
} else {
return new BigDecimal("0.00");
}
}
}