29 lines
479 B
C++
29 lines
479 B
C++
#pragma once
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#include <stdint.h>
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#include <array>
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class Cell {
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public:
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enum State {
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Unsolved,
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Solved,
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};
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Cell();
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explicit Cell(uint8_t value);
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void Restrict(uint8_t value);
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uint8_t NumPossibilities();
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bool IsSolved() const { return state_ == Solved; }
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uint8_t value() const { return value_; }
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bool IsPossible(uint8_t v) const { return possibilities_[v - 1]; }
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private:
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State state_;
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uint8_t value_;
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std::array<bool, 9> possibilities_;
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};
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