递归矩阵乘法,res矩阵(初始设为matrix)乘k个matrix矩阵
#include<bits/stdc++.h>
using namespace std;
#define rep(i,s,e) for(int i=s;i<e;i++)
#define per(i,s,e) for(int i=s;i>e;i--)
#define LL long long
//递归矩阵乘法,res矩阵乘k个matrix矩阵
vector< vector<LL> > nnMatrixMtl(LL n,ve...