#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ar array
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
if (n<=2) {
cout << (n==1?1:-1);
return 0;
}
int n2=n*(n-1)/2;
for (int i=1; i<=n; ++i) {
int s=i<n?(i-1)*n2:n2*(n2-1);
for (int j=1; j<=n; ++j)
cout << s+(j<n?j:n2) << " ";
cout << "\n";
}
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
1 ms |
332 KB |
Output is correct |
10 |
Correct |
1 ms |
332 KB |
Output is correct |