摘要:
两种构造的方式都是正确的;1.#include#include#include#define maxn 60#define ll long longusing namespace std;int x;ll M,n;struct matrix{ int len_x; int len_y; ll data[maxn][maxn]; void ini() { len_x=0; len_y=0; memset(data,0,sizeof data); }};matrix mat_big;ll f[maxn][maxn];ma... 阅读全文