矩阵的简单运算，可实现加，减，乘运算，是中山大学的实验题-Simple matrix operations can be realized addition, subtraction, multiplication, is the experiment of Sun Yat-sen

ACM模板,此模板为中山大学的模板,包含大多数ACM中用到的算法-The ACM templates, template template of Sun Yat-sen University, contains the algorithm used in most of the ACM