Add solution for "Day 24: Crossed Wires", part 1

include/aoc/CrossedWires.hpp

@@ -0,0 +1,45 @@
+// Solutions to the Advent Of Code 2024.
+// Copyright (C) 2025  Stefan Müller
+//
+// This program is free software: you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free Software
+// Foundation, either version 3 of the License, or (at your option) any later
+// version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <bitset>
+#include <forward_list>
+#include <unordered_map>
+
+#include <aoc/common/LogicGate.hpp>
+#include <aoc/framework/Solver-types.hpp>
+
+class CrossedWires
+    : public Solver<int64_t, std::string>
+{
+public:
+    CrossedWires(const int inputFileNameSuffix = 0);
+    virtual const std::string getPuzzleName() const override;
+    virtual const int getPuzzleDay() const override;
+    virtual void processDataLine(const std::string& line) override;
+    virtual void finish() override;
+private:
+    static constexpr char getInputWireDelimiter();
+    static constexpr char getOutputWiresChar();
+    bool isProcessingInputWires_;
+    std::unordered_map<std::string, bool> wires_;
+    std::forward_list<LogicGate> unevaluatedGates_;
+    std::bitset<64> z_;
+    void processInputWire(const std::string& line);
+    void processLogicGate(const std::string& line);
+    bool tryEvaluateLogicGate(const LogicGate& gate);
+    void setOutputWire(const std::string& wire, const bool value);
+};

include/aoc/common/LogicGate.hpp

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+// Solutions to the Advent Of Code 2024.
+// Copyright (C) 2025  Stefan Müller
+//
+// This program is free software: you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free Software
+// Foundation, either version 3 of the License, or (at your option) any later
+// version.
+//
+// This program is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with
+// this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#pragma once
+
+#include <iostream>
+#include <string>
+
+class LogicGate
+{
+public:
+    enum class Kind { And, Or, Xor, Unknown };
+
+    std::string inputWire1;
+    std::string inputWire2;
+    std::string outputWire;
+    Kind kind{ Kind::Unknown };
+};
+
+std::istream& operator>>(std::istream& is, LogicGate& logicGate);
+std::istream& operator>>(std::istream& is, LogicGate::Kind& kind);