46 lines
1.9 KiB
C++
46 lines
1.9 KiB
C++
// Solutions to the Advent Of Code 2024.
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// Copyright (C) 2025 Stefan Müller
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//
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// This program is free software: you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free Software
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// Foundation, either version 3 of the License, or (at your option) any later
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// version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along with
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// this program. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <array>
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#include <vector>
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#include <aoc/Interval.hpp>
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#include <aoc/Solver.hpp>
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class DiskFragmenter
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: public Solver
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{
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public:
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virtual const std::string getPuzzleName() const override;
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virtual const int getPuzzleDay() const override;
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virtual void processDataLine(const std::string& line) override;
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virtual void finish() override;
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private:
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typedef std::vector<Interval> Intervals;
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typedef std::array<size_t, 10> DigitIndexArray;
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void moveFileBlocks(const std::string& line);
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void moveWholeFiles(const std::string& line);
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void AddNewEmptySpaces(Intervals& emptySpaces, const std::string& line, size_t& front, const size_t back,
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const int nBackBlocks, size_t& position);
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void UpdateEmptySpaceIndices(const Intervals& emptySpaces, DigitIndexArray& emptySpaceIndices);
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void moveBackFileForward(size_t& back, size_t& backIdNumber, const int nBackBlocks, Interval& emptySpace);
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void keepBackFile(const std::string& line, size_t& back, size_t& backIdNumber, const int nBackBlocks,
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size_t& position);
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unsigned int getDigit(const std::string& line, const size_t index) const;
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long long int calcChecksumPart(const size_t idNumber, const int nBlocks, size_t& position) const;
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};
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