From 5810fe22e9f7099ed59056bd6771b88a63547b3d Mon Sep 17 00:00:00 2001
From: Pratchaya Khansomboon <pratchak@axis.com>
Date: Tue, 17 Dec 2024 18:01:49 +0100
Subject: [PATCH] aoc24: day17 started

---
 dat/24/ex/17.txt      |  5 ++++
 dat/24/re/17.txt      |  5 ++++
 sol/24/CMakeLists.txt |  1 +
 sol/24/aoc.cpp        |  1 +
 sol/24/day17.cpp      | 59 +++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 71 insertions(+)
 create mode 100644 dat/24/ex/17.txt
 create mode 100644 dat/24/re/17.txt
 create mode 100644 sol/24/day17.cpp

diff --git a/dat/24/ex/17.txt b/dat/24/ex/17.txt
new file mode 100644
index 0000000..f09839b
--- /dev/null
+++ b/dat/24/ex/17.txt
@@ -0,0 +1,5 @@
+Register A: 729
+Register B: 0
+Register C: 0
+
+Program: 0,1,5,4,3,0
diff --git a/dat/24/re/17.txt b/dat/24/re/17.txt
new file mode 100644
index 0000000..5627e5e
--- /dev/null
+++ b/dat/24/re/17.txt
@@ -0,0 +1,5 @@
+Register A: 22817223
+Register B: 0
+Register C: 0
+
+Program: 2,4,1,2,7,5,4,5,0,3,1,7,5,5,3,0
diff --git a/sol/24/CMakeLists.txt b/sol/24/CMakeLists.txt
index 52a9f00..41ccd9c 100644
--- a/sol/24/CMakeLists.txt
+++ b/sol/24/CMakeLists.txt
@@ -16,6 +16,7 @@ set(SOURCES
     # "day11.cpp"
     "day14.cpp"
     "day16.cpp"
+    "day17.cpp"
 )
 add_library(aoc24 STATIC ${HEADERS} ${SOURCES})
 target_include_directories(aoc24
diff --git a/sol/24/aoc.cpp b/sol/24/aoc.cpp
index 046a15b..84ef906 100644
--- a/sol/24/aoc.cpp
+++ b/sol/24/aoc.cpp
@@ -31,6 +31,7 @@ auto entry([[maybe_unused]]std::span<char const*> const& args) -> std::expected<
     // case 11: return day11(args);
     case 14: return day14(args);
     case 16: return day16(args);
+    case 17: return day17(args);
     default:
         return aoc::make_error(fmt::format("day {}", day), std::errc::not_supported);
     }
diff --git a/sol/24/day17.cpp b/sol/24/day17.cpp
new file mode 100644
index 0000000..7f6b277
--- /dev/null
+++ b/sol/24/day17.cpp
@@ -0,0 +1,59 @@
+#include <vector>
+#include <ranges>
+#include <numeric>
+#include <memory>
+
+#include "aoc.hpp"
+#include "aoc/utils.hpp"
+#include "fmt/format.h"
+#include "stb_image_write.h"
+
+using namespace aoc::types;
+using namespace std::string_view_literals;
+
+namespace uec {
+enum class opcode : u8 {
+    adv,
+    bxl,
+    bst,
+    jnz,
+    bxc,
+    out,
+    bdv,
+    cdv
+};
+
+struct regs {
+    u64 a;
+    u64 b;
+    u64 c;
+};
+
+class cpu {
+public:
+    cpu() {}
+
+    auto load(uec::regs const& regs, std::vector<opcode> const& program) -> void {
+        m_regs = regs;
+        m_program = program;
+    }
+
+    auto registers() const -> uec::regs { return m_regs; }
+    auto program() const -> std::vector<opcode> const& { return m_program; }
+
+private:
+    uec::regs m_regs{};
+    std::vector<opcode> m_program{};
+};
+}
+
+auto aoc24::day17([[maybe_unused]]std::span<char const*> const& args) -> std::expected<void, aoc::error> {
+    auto res = aoc::read_text("./dat/24/ex/17.txt");
+    // auto res = aoc::read_text("./dat/24/re/17.txt");
+    if (!res) return std::unexpected(res.error());
+    auto const txt = *res;
+
+    auto
+
+    return {};
+}