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Add .clang-format and apply it

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This commit is contained in:
Matthew Gretton-Dann
2021-12-02 07:18:16 +00:00
parent e58dede1b6
commit cd5e2538df
103 changed files with 2714 additions and 2132 deletions
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46
2020/puzzle-24-02.cc
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@@ -12,14 +12,17 @@
using Coord = long;
using Position = std::pair<Coord, Coord>;
struct State {
struct State
{
bool black_ = false;
int neighbours_ = 0;
};
using Tiles = std::map<Position, State>;
struct Tiler {
void flip_tile(std::string const &s) {
struct Tiler
{
void flip_tile(std::string const& s)
{
Coord x = 0;
Coord y = 0;
auto it = s.begin();
@@ -34,9 +37,11 @@ struct Tiler {
if (*it == 'e') {
x += dx;
} else if (*it == 'w') {
}
else if (*it == 'w') {
x -= dx;
} else {
}
else {
assert(false);
}
++it;
@@ -46,13 +51,14 @@ struct Tiler {
flip_tile(x, y);
}
Tiler next_state() const {
Tiler next_state() const
{
Tiler next(*this);
for (auto const &kv : tiles_) {
if (kv.second.black_ &&
(kv.second.neighbours_ == 0 || kv.second.neighbours_ > 2)) {
for (auto const& kv : tiles_) {
if (kv.second.black_ && (kv.second.neighbours_ == 0 || kv.second.neighbours_ > 2)) {
next.flip_tile(kv.first.first, kv.first.second);
} else if (!kv.second.black_ && kv.second.neighbours_ == 2) {
}
else if (!kv.second.black_ && kv.second.neighbours_ == 2) {
next.flip_tile(kv.first.first, kv.first.second);
}
}
@@ -60,9 +66,10 @@ struct Tiler {
return next;
}
std::size_t black_count() const noexcept {
std::size_t black_count() const noexcept
{
std::size_t count = 0;
for (auto const &kv : tiles_) {
for (auto const& kv : tiles_) {
count += kv.second.black_;
}
@@ -70,7 +77,8 @@ struct Tiler {
}
private:
void set_neighbours(Coord x, Coord y, int delta) {
void set_neighbours(Coord x, Coord y, int delta)
{
set_neighbour(x + 2, y, delta);
set_neighbour(x + 1, y - 1, delta);
set_neighbour(x - 1, y - 1, delta);
@@ -79,7 +87,8 @@ private:
set_neighbour(x + 1, y + 1, delta);
}
void set_neighbour(Coord x, Coord y, int delta) {
void set_neighbour(Coord x, Coord y, int delta)
{
auto [it, success] = tiles_.insert({{x, y}, {false, delta}});
if (!success) {
it->second.neighbours_ += delta;
@@ -87,14 +96,16 @@ private:
assert(it->second.neighbours_ >= 0);
}
void flip_tile(Coord x, Coord y) {
void flip_tile(Coord x, Coord y)
{
auto [it, success] = tiles_.insert({{x, y}, {true, 0}});
if (!success) {
it->second.black_ = !it->second.black_;
}
if (it->second.black_) {
set_neighbours(x, y, 1);
} else {
}
else {
set_neighbours(x, y, -1);
}
}
@@ -103,7 +114,8 @@ private:
Tiles tiles_;
};
int main(void) {
int main(void)
{
Tiler tiler;
std::string line;
while (std::getline(std::cin, line)) {