Big update: Adding all advent of codes to same repo

2024-12-06 00:14:09 +00:00
parent 5116bd4696
commit 233dda4fe9
106 changed files with 7790 additions and 0 deletions
--- a/AdventOfCode2020/day4/day4.class
+++ b/AdventOfCode2020/day4/day4.class
--- a/AdventOfCode2020/day4/day4.java
+++ b/AdventOfCode2020/day4/day4.java
@@ -0,0 +1,133 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+import java.io.File;
+import java.io.FileNotFoundException;
+
+class day4 {
+    
+    public static void main(String[] args) {
+        
+        try {
+            
+            File myFile = new File("input.txt");
+            Scanner in = new Scanner(myFile);
+            
+            ArrayList<String> passports = new ArrayList<String>();
+            String line = "";
+            String input = "";
+
+            while (in.hasNext()) {
+                input = "";
+                input = in.nextLine();
+                if (input.length() == 0) {
+                    passports.add(line);
+                    line = "";
+                } else {
+                    line += input;
+                }
+            }
+            
+            passports.add(input);
+
+            int valid = 0;
+
+            for (String current : passports) {
+
+                String currentNoSpace = current.replaceAll("\\s","");
+
+                String[] fields = currentNoSpace.split(":");
+                int counter = 0;
+
+                String currentField = "";
+
+                for (int i = 0; i < fields.length - 1; i++) {
+
+                    currentField = fields[i].substring(fields[i].length() - 3);
+
+                    System.out.println("Next value: " + fields[i + 1]);
+                    String value = "";
+                    try {
+                        value = fields[i + 1].substring(0, fields[i + 1].length() - 3);
+                    } catch (Exception e) {
+                        value = "";
+                    }
+                    if (i == fields.length - 2) {
+                        value = fields[i + 1];
+                    }
+                    
+                    System.out.println(currentField);
+                    System.out.println(value);
+
+                    if (currentField.equals("hcl")) {
+
+                        String HEX_PATTERN = "^#([A-Fa-f0-9]{6})$";
+                        if(value.matches(HEX_PATTERN)) counter++;
+
+                    } else if (currentField.equals("pid")) {
+
+                        String DIGITS_PATTERN = "\\d+";
+                        if (value.matches(DIGITS_PATTERN) && value.length() == 9) counter++;
+
+                    } else if (currentField.equals("ecl")) {
+
+                        if (value.equals("amb") || value.equals("blu") || value.equals("brn") || value.equals("gry") 
+                        || value.equals("grn") || value.equals("hzl") || value.equals("oth")) counter++;
+
+                    } else if (currentField.equals("eyr")) {
+
+                        String DIGITS_PATTERN = "\\d+";
+                        if (value.matches(DIGITS_PATTERN)) {
+                            int year = Integer.parseInt(value);
+                            if (year >= 2020 && year <= 2030) counter++;
+                        }
+
+                    } else if (currentField.equals("hgt")) {
+
+                        String DIGITS_PATTERN = "\\d+";
+                        if (value.substring(0, value.length() - 2).matches(DIGITS_PATTERN)) {
+                            if (value.substring(value.length() - 2, value.length()).equals("in")) {
+
+                                int num = Integer.parseInt(value.substring(0, value.length() - 2));
+                                if (num >= 59 && num <= 76) counter++;
+
+                            } else if (value.substring(value.length() - 2, value.length()).equals("cm")) {
+                                int num = Integer.parseInt(value.substring(0, value.length() - 2));
+                                if (num >= 150 && num <= 193) counter++;
+                            }
+                        }
+
+                    } else if (currentField.equals("byr")) {
+
+                        String DIGITS_PATTERN = "\\d+";
+                        if (value.matches(DIGITS_PATTERN)) {
+                            int year = Integer.parseInt(value);
+                            if (year >= 1920 && year <= 2002) counter++;
+                        }
+
+                    } else if (currentField.equals("iyr")) {
+
+                        String DIGITS_PATTERN = "\\d+";
+                        if (value.matches(DIGITS_PATTERN)) {
+                            int year = Integer.parseInt(value);
+                            if (year >= 2010 && year <= 2020) counter++;
+                        }
+
+                    }
+
+                }
+
+                if (counter == 7) valid++;
+                counter = 0;
+
+            }
+
+            System.out.println("Valid: " + valid);
+
+        } catch (FileNotFoundException e) {
+            System.out.println(e);
+        }
+        
+    }
+    
+}
+