Advent 2022 day2 & day3

advent_of_code_2022/day2/main.cc

@@ -0,0 +1,47 @@
+#include <fmt/format.h>
+
+#include <array>
+#include <fstream>
+
+void run_game(const std::array<std::array<int, 3>, 3>& scoring)
+{
+    int score = 0;
+    std::fstream in{"input.txt"};
+
+    char elf{};
+    char you{};
+
+    while (true)
+    {
+        in >> elf >> you;
+
+        if (in.eof())
+            break;
+
+        score += scoring[elf - 'A'][you - 'X'];
+    }
+
+    fmt::print("Result: {}\n", score);
+}
+
+int main()
+{
+    std::array<std::array<int, 3>, 3> scoring_part1
+    {{   
+        //X     Y     Z
+        {{4,    8,    3}},    // A (rock)
+        {{1,    5,    9}},    // B (paper)
+        {{7,    2,    6}}     // C (scissors)
+    }};
+
+    std::array<std::array<int, 3>, 3> scoring_part2
+    {{   
+        //X     Y     Z
+        {{3,    4,    8}},    // A (rock)
+        {{1,    5,    9}},    // B (paper)
+        {{2,    6,    7}}     // C (scissors)
+    }};
+
+    run_game(scoring_part1);
+    run_game(scoring_part2);
+}