2021ICPC沈阳I题
https://link.zhihu.com/?target=https%3A//ac.nowcoder.com/acm/contest/24346/I
2020ICPC济南A题
https://ac.nowcoder.com/acm/contest/10662/A
高斯消元只要构造出增广矩阵,求解就很简单了.
对本题来说,矩阵乘开后,新矩阵的列向量,就是B*C的列向量.
https://link.zhihu.com/?target=https%3A//ac.nowcoder.com/acm/contest/24346/I
https://ac.nowcoder.com/acm/contest/10662/A
高斯消元只要构造出增广矩阵,求解就很简单了.
对本题来说,矩阵乘开后,新矩阵的列向量,就是B*C的列向量.