Add 2022 Day 2.

2022/puzzle-02-01.cc

@@ -0,0 +1,30 @@
+//
+// Created by Matthew Gretton-Dann on 02/12/2022.
+//
+
+#include <cstdlib>
+#include <iostream>
+#include <map>
+#include <string>
+
+using Int = std::int64_t;
+
+auto main() -> int
+{
+  // A = Rock, B = Paper, C = Scissors
+  // X = Rock, B = Paper, C = Scisscors
+  std::map<std::string, Int> scores = {
+    {"A X", 1 + 3}, {"A Y", 2 + 6}, {"A Z", 3 + 0}, {"B X", 1 + 0}, {"B Y", 2 + 3},
+    {"B Z", 3 + 6}, {"C X", 1 + 6}, {"C Y", 2 + 0}, {"C Z", 3 + 3},
+  };
+
+  Int score{0};
+  std::string line;
+  while (std::getline(std::cin, line)) {
+    auto it{scores.find(line)};
+    assert(it != scores.end());
+    score += it->second;
+  }
+  std::cout << "Score: " << score << '\n';
+  return EXIT_SUCCESS;
+}

2022/puzzle-02-02.cc

@@ -0,0 +1,30 @@
+//
+// Created by Matthew Gretton-Dann on 02/12/2022.
+//
+
+#include <cstdlib>
+#include <iostream>
+#include <map>
+#include <string>
+
+using Int = std::int64_t;
+
+auto main() -> int
+{
+  // A = Rock, B = Paper, C = Scissors
+  // X = Lose, B = Draw, C = Win
+  std::map<std::string, Int> scores = {
+    {"A X", 3 + 0}, {"A Y", 1 + 3}, {"A Z", 2 + 6}, {"B X", 1 + 0}, {"B Y", 2 + 3},
+    {"B Z", 3 + 6}, {"C X", 2 + 0}, {"C Y", 3 + 3}, {"C Z", 1 + 6},
+  };
+
+  Int score{0};
+  std::string line;
+  while (std::getline(std::cin, line)) {
+    auto it{scores.find(line)};
+    assert(it != scores.end());
+    score += it->second;
+  }
+  std::cout << "Score: " << score << '\n';
+  return EXIT_SUCCESS;
+}