Submission #661107

#TimeUsernameProblemLanguageResultExecution timeMemory
661107Trisanu_DasProsjecni (COCI16_prosjecni)C++17
120 / 120
1 ms340 KiB
#include <bits/stdc++.h>
using namespace std;

int main() {
	int n; cin >> n;
	if (n <= 2) {
		cout << (n == 1 ? 1 : -1) << '\n';
		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';
	}
}
#Verdict Execution timeMemoryGrader output
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