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Tidy 2021 25 solution

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This commit is contained in:
Matthew Gretton-Dann
2022-11-27 17:22:29 +00:00
parent 29079b59bc
commit 931ad402fa
1 changed files with 4 additions and 6 deletions
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10
2021/puzzle-25-01.cc
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@@ -3,8 +3,6 @@
#include <regex> #include <regex>
#include <string> #include <string>
using Int = unsigned long;
struct State struct State
{ {
void add_line(std::string const& line) void add_line(std::string const& line)
@@ -20,13 +18,13 @@ struct State
} }
} }
State move_right() const [[nodiscard]] auto move_right() const noexcept -> State
{ {
State result{*this}; State result{*this};
for (std::size_t row{0}; row < lines_.size(); ++row) { for (std::size_t row{0}; row < lines_.size(); ++row) {
for (std::size_t col{0}; col < lines_[row].size(); ++col) { for (std::size_t col{0}; col < lines_[row].size(); ++col) {
auto from = lines_[row][col]; auto from = lines_[row][col];
auto to = lines_[row].at((col + 1) % lines_[row].size()); auto to = lines_[row][(col + 1) % lines_[row].size()];
if (from == '>' && to == '.') { if (from == '>' && to == '.') {
result.lines_[row][(col + 1) % lines_[row].size()] = '>'; result.lines_[row][(col + 1) % lines_[row].size()] = '>';
result.lines_[row][col] = '.'; result.lines_[row][col] = '.';
@@ -36,7 +34,7 @@ struct State
return result; return result;
} }
State move_down() const [[nodiscard]] auto move_down() const noexcept -> State
{ {
State result{*this}; State result{*this};
for (std::size_t row{0}; row < lines_.size(); ++row) { for (std::size_t row{0}; row < lines_.size(); ++row) {
@@ -53,7 +51,7 @@ struct State
return result; return result;
} }
bool operator==(State const& rhs) const noexcept { return lines_ == rhs.lines_; } auto operator==(State const& rhs) const noexcept -> bool { return lines_ == rhs.lines_; }
private: private:
std::vector<std::string> lines_; std::vector<std::string> lines_;