Matrix67 的生日那天，他要带着他的MM在花园里游玩。Matrix67不会带MM两次经过同一个景点，因此每个景点最多被游览一次。-Matrix67' s birthday that day, he wanted to MM with his play in the garden. Matrix67 not with MM after the same spot twice, so the most scenic spots

十个利用矩阵乘法解决的经典题目，由matrix67大牛所写，堪称经典。-10 the use of matrix multiplication to solve a classic topic, written by matrix67 Daniudi, classic.