86 lines
2.1 KiB
C++
86 lines
2.1 KiB
C++
// Solutions to the Advent Of Code 2024.
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// Copyright (C) 2024-2025 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 <iostream>
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#include <memory>
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#include <aoc/common/Point2.hpp>
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// Inspired by https://stackoverflow.com/a/32279494
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template <typename T>
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class Grid
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{
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public:
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Grid(size_t nRows, size_t nColumns)
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: nRows_{ nRows }, nColumns_{ nColumns }, data_{ std::make_unique<T[]>(nRows * nColumns) }
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{
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}
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size_t getNRows() const
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{
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return nRows_;
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}
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size_t getNColumns() const
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{
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return nColumns_;
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}
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T& cell(size_t rowNo, size_t columnNo)
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{
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return data_[rowNo * nColumns_ + columnNo];
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}
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T& cell(Point2 position)
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{
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return data_[position.y * nColumns_ + position.x];
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}
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T* operator[](size_t rowNo)
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{
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return rowNo * nColumns_ + data_.get();
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}
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void fill(const T value)
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{
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for (size_t i = 0; i < nRows_ * nColumns_; i++)
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{
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data_[i] = value;
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}
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}
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private:
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size_t nRows_;
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size_t nColumns_;
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std::unique_ptr<T[]> data_;
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friend std::ostream& operator<< <>(std::ostream& os, const Grid<T>& rhs);
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};
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template <typename T>
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std::ostream& operator<<(std::ostream& os, const Grid<T>& rhs)
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{
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size_t i{ 0 };
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for (size_t j = 0; j < rhs.getNRows(); j++)
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{
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for (; i < j * rhs.getNColumns(); i++)
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{
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os << rhs.data_[i] << ' ';
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}
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os << std::endl;
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}
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return os;
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}
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