```cpp
#include<bits/stdc++.h>
using namespace std;
long long n;
int main()
{
cin>>n;
cout<<n<<endl;
for(int i=1;i<=n-1;i++)
{
for(int j=1;j<=i;j++) cout<<!(i%2);
for(int j=1;j<=n-i;j++) cout<<i%2;
cout<<endl;
}
for(int i=1;i<=n;i++) cout<<1;//最后是排好的,所以直接全输出1就可以了
return 0;
}
```
by Ackoter @ 2018-06-11 13:44:37
@[张笑凡1号](/space/show?uid=13805) 您太强啦!
by AlgoEmperor @ 2018-06-11 15:21:44
要想出名,先吃你的小鸡鸡!!!!
by CAIAORAN @ 2018-08-14 12:52:08
@[Ofnoname](/space/show?uid=73489) 要想出名,先吃你的小鸡鸡!!!!
by CAIAORAN @ 2018-08-14 12:54:11
%%%
by 收到 @ 2018-10-29 21:36:03
# %%%
by optimize_3 @ 2019-07-24 11:00:31
大佬大佬
by 无形的狗子 @ 2019-07-25 11:19:28
@[张笑凡1号](/space/show?uid=13805)
###### 太强了
by 林雨涵 @ 2019-07-29 07:48:28