关于狼羊菜问题的 Matlab 代码

以下是关于狼羊菜问题的 Matlab 代码参考：

% 初始化岸上的羊、狼、菜的数量
sheep_on_bank = 1;
wolf_on_bank = 1;
vegetable_on_bank = 1;

% 岸上的船只数量
boat_on_bank = 0;

% 当船在右岸时，所有物品都在左岸
sheep_on_right_bank = 0;
wolf_on_right_bank = 0;
vegetable_on_right_bank = 0;
boat_on_right_bank = 0;

while (sheep_on_bank ~= 0 || wolf_on_bank ~= 0 || vegetable_on_bank ~= 0)
% 左岸需要将物品运到右岸
if (boat_on_bank == 0)
if (sheep_on_bank == 1 && wolf_on_bank == 1)
% 狼和羊不能共处
disp('Error: wolf eats sheep');
return;
elseif (sheep_on_bank == 1 && vegetable_on_bank == 1)
% 羊和菜不能共处
disp('Error: sheep eats vegetable');
return;
else
% 将船开到右岸，更新岸上的物品数量
boat_on_bank = 1;
sheep_on_bank = sheep_on_bank - 1;
wolf_on_bank = wolf_on_bank - 1;
vegetable_on_bank = vegetable_on_bank - 1;
sheep_on_right_bank = 1;
wolf_on_right_bank = 1;
vegetable_on_right_bank = 1;
boat_on_right_bank = 1;
disp('Boat rows to right bank');
end
% 右岸需要将物品运到左岸
else
if (sheep_on_right_bank == 1 && wolf_on_right_bank == 1)
% 狼和羊不能共处
disp('Error: wolf eats sheep');
return;
elseif (sheep_on_right_bank == 1 && vegetable_on_right_bank == 1)
% 羊和菜不能共处
disp('Error: sheep eats vegetable');
return;
else
% 将船开到左岸，更新岸上的物品数量
boat_on_bank = 0;
sheep_on_bank = sheep_on_bank + 1;
wolf_on_bank = wolf_on_bank + 1;
vegetable_on_bank = vegetable_on_bank + 1;
sheep_on_right_bank = 0;
wolf_on_right_bank = 0;
vegetable_on_right_bank = 0;
boat_on_right_bank = 0;
disp('Boat rows to left bank');
end
end
end

disp('All items have been transported safely');