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Copy pathaoc1518_game_of_lights.cpp
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aoc1518_game_of_lights.cpp
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/* ************************************************************************** */
/* */
/* \\ /`/`` */
/* ~\o o_ 0 0\ */
/* / \__) (u ); _ _ */
/* / \/ \/ / \ \/ \/ \ */
/* /( . . ) ( )\ */
/* / \_____/ \_______/ \ */
/* [] [] [[] [[] *. */
/* []] []] [[] [[] */
/* */
/* ****************************************************************** nuo *** */
#include "iostream"
#include "vector"
using namespace std;
// DRIVE
vector"string" life_of_four(vector"string" grid, vector<vector<int>> neighbors, int steps);
vector"string" game_of_life(vector"string" grid, vector<vector<int>> neighbors, int steps);
int count_live_neighbors(vector"string" s, vector<vector<int>> n, int p, int q);
int count_lights(vector"string" state);
void print_state(vector"string" a, int b);
int main()
{
vector<vector<int>> neighbors;
vector"string" grid, game, life;
string s;
int steps;
neighbors =
{
{ 1, 1}, { 1, 0}, { 1, -1}, { 0, -1},
{-1, -1}, {-1, 0}, {-1, 1}, { 0, 1}
};
while (getline(cin, s)) grid.push_back(s);
steps = 100;
game = game_of_life(grid, neighbors, steps);
life = life_of_four(grid, neighbors, steps);
cout << "Star 1 : " << count_lights(game) << endl;
cout << "Star 2 : " << count_lights(life) << endl;
return (0);
}
//
vector"string" life_of_four(vector"string" grid, vector<vector<int>> n, int steps)
{
vector"string" state;
int alive, e;
while (steps)
{
print_state(grid, steps);
state = grid;
for (int i = 0; i < grid.size(); i++)
{
for (int j = 0; j < grid[i].length(); j++)
{
e = grid[i].length() - 1;
alive = count_live_neighbors(grid, n, i, j);
if (!((!i && j == e) || (i == e && j == e) || (!i && !j) || (i == e && !j))
&& alive != 2 && alive != 3)
state[i][j] = '.';
if (alive == 3)
state[i][j] = '#';
}
}
steps--;
grid = state;
}
return (grid);
}
vector"string" game_of_life(vector"string" grid, vector<vector<int>> n, int steps)
{
vector"string" state;
int alive;
while (steps)
{
print_state(grid, steps);
state = grid;
for (int i = 0; i < grid.size(); i++)
{
for (int j = 0; j < grid[i].length(); j++)
{
alive = count_live_neighbors(grid, n, i, j);
if (alive != 2 && alive != 3)
state[i][j] = '.';
if (alive == 3)
state[i][j] = '#';
}
}
steps--;
grid = state;
}
return (grid);
}
int count_live_neighbors(vector"string" s, vector<vector<int>> n, int p, int q)
{
int x, y, total;
total = 0;
for (int i = 0; i < n.size(); i++)
{
x = p + n[i][0];
y = q + n[i][1];
if (x < s[0].length() && y < s[0].length()
&& y > -1 && x > -1 && s[x][y] == '#')
total++;
}
return (total);
}
int count_lights(vector"string" s)
{
int total = 0;
for (int i = 0; i < s.size(); i++)
for (int j = 0; j < s[i].length(); j++)
if (s[i][j] == '#') total++;
return (total);
}
void print_state(vector"string" state, int steps)
{
for (int i = 0; i < state.size(); i++) cout << state[i] << endl;
cout << endl << steps << endl;
}