32 lines
691 B
C++
32 lines
691 B
C++
#include <iostream>
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#include <utility>
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#include <intcode.hpp>
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using namespace intcode;
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namespace {
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auto Compute(Machine machine, ValueType d) -> ValueType {
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ValueType last_output = -1;
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while (std::visit(overloaded{
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[](Halt) { return false; },
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[d, &machine](Input arg) {
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arg.pos = d;
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return true;
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},
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[&last_output](Output arg) {
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last_output = arg.val;
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return true;
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}},
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machine.Step()));
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return last_output;
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}
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} // namespace
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auto main() -> int {
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auto machine = Machine{ParseStream(std::cin)};
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std::cout << "Part 1: " << Compute(machine, 1) << std::endl;
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std::cout << "Part 2: " << Compute(std::move(machine), 5) << std::endl;
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}
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