46 lines
903 B
C++
46 lines
903 B
C++
#include <iostream>
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#include <utility>
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#include <tuple>
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#include <map>
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#include <aocpp/Startup.hpp>
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#include <aocpp/Coord.hpp>
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#include <intcode/intcode.hpp>
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using namespace aocpp;
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using namespace intcode;
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namespace {
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auto Compute(Machine machine, ValueType start)
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-> std::map<Coord, ValueType> {
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Coord here {0,0};
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std::map<Coord, ValueType> paint {{here,start}};
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Coord dir {0, -1};
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bool next_color = true;
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Run(machine,
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[&]() { return paint[here]; },
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[&](auto o) {
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if (next_color) {
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paint[here] = o;
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} else {
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dir = (o ? CW : CCW)(dir);
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here += dir;
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}
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next_color = !next_color;
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});
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return paint;
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}
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} // namespace
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auto Main(std::istream & in) -> void
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{
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auto machine = Machine{ParseStream(in)};
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std::cout << "Part 1: " << Compute(machine, 0).size() << "\nPart 2\n";
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Draw(std::cout, Compute(std::move(machine), 1));
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}
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