找规律
#include <iostream>
#include <cstring>
#include <algorithm>
using namespace std;
const int N = 110;
int a[N][N];
int main()
{
int n;
while(cin >> n, n)
{
for(int i = 0; i < n; i++)
{
for(int j = i, k = 1; j < n; j++, k++)
{
a[i][j] = k;
a[j][i] = k;
}
}
for(int i = 0; i < n; i++)
{
for(int j = 0; j < n; j++)
cout << a[i][j] << ' ';
cout << endl;
}
cout << endl;
}
return 0;
}