re，输入方式换一下，
wa，记忆化
by caican @ 2024-03-19 13:09:46
cin>>n;
for(int i=1;i<=n;i++)
{
for(int j=1;j<=n;j++)
{
char c;
cin>>c;
arr[i][j]=c-'0';
}
}
by caican @ 2024-03-19 13:12:00
@[caican](/user/996390) 我测,大佬!换了就对了..为什么啊这是..
by ridbor001 @ 2024-03-19 21:04:05