2022 Day 1

2022/.gitignore

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+*.input

2022/day1.swift

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+import Foundation
+
+let input = try String(contentsOf: URL(fileURLWithPath: "day1.input"))
+
+let scanner = Scanner(string: input)
+scanner.charactersToBeSkipped = nil
+
+var currentElf = 0
+var allElves: [Int] = []
+
+while !scanner.isAtEnd {
+    if scanner.scanString("\n") != nil {
+        allElves.append(currentElf)
+        currentElf = 0
+    }
+    
+    if let calories = scanner.scanInt() {
+        currentElf += calories
+        _ = scanner.scanString("\n")
+    }
+}
+allElves.append(currentElf)
+
+allElves.sort()
+
+print("Maximum:", allElves.last!)
+print("Top 3:", allElves.suffix(3).reduce(0, +))