added day 2

Topener · Topener · commit 23366da15085 · 2020-12-04T11:38:50.000Z
diff --git a/day4/program.js b/day4/program.js
@@ -3,16 +3,27 @@ const fs = require('fs');
 fs.readFile('./input.txt', 'utf-8', (e, data) => {
     const items = data.split("\n");
     const rawPassports = findPassports(items);
-    const passports = splitPassportData(rawPassports);
+    const passportsCheck1 = splitPassportData(rawPassports);
+
+    const toValidatePart2 = [];
     
-    let validPassports = 0;
-    passports.forEach(p => {
+    passportsCheck1.forEach((p, i) => {
         if (validatePassport(p)) {
+            toValidatePart2.push(p);
+        }
+    });
+    
+    console.log(`Part1: Found ${toValidatePart2.length} valid passports`);
+    
+    let validPassports = 0;
+
+    toValidatePart2.forEach((p, i) => {
+        if (validatePassportProperties(p)){
             validPassports++;
         }
     });
 
-    console.log(`Found ${validPassports} valid passports`);
+    console.log(`Part2: Found ${validPassports} valid passports`);
 
 });
 
@@ -39,7 +50,9 @@ function splitPassportData(raw) {
             const parts = row.split(' ');
             parts.forEach(part => {
                 let split = part.split(':');
-                passport[split[0]] = split[1]
+                if (split[0] === 'byr' || split[0] === 'iyr' || split[0] === 'eyr' ) split[1] = parseInt(split[1]);
+
+                passport[split[0]] = split[1];
             })
         });
         passports.push(passport);
@@ -57,4 +70,24 @@ function validatePassport(passport) {
     }
 
     return false;
-} 
+} 
+
+function validatePassportProperties(passport) {
+    if (passport.byr > 2002 || passport.byr < 1920) return false;
+    if (passport.iyr > 2020 || passport.iyr < 2010) return false;
+    if (passport.eyr > 2030 || passport.eyr < 2020) return false;
+    if (!validateHeight(passport.hgt)) return false;
+    if (!passport.hcl.match(/#[0-9a-f]{6}/)) return false;
+    if (['amb','blu','brn','gry','grn','hzl','oth'].indexOf(passport.ecl) === -1) return false;
+    if (passport.pid.length != 9 || !passport.pid.match(/[0-9]{9}/)) return false;
+    return true;
+}
+
+function validateHeight(height) {
+    let replace = height.indexOf('in') > -1 ? 'in' : 'cm';
+    height.replace(replace,'');
+    height = parseInt(height);
+    if (replace === 'in' && (height > 76 || height < 59)) return false;
+    if (replace === 'cm' && (height > 193 || height < 150)) return false;
+    return true;
+}
