Submission #242544

#	Time	Username	Problem	Language	Result	Execution time	Memory
242544		NONAME	Prosjecni (COCI16_prosjecni)	C++14	24 / 120	7 ms	1024 KiB

prosjecni

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;

ll a[101][101];

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    ll n;
    cin >> n;
    ll sum = n * (n - 1) / 2;
    for (int i = 0; i < n - 1; ++i)
        a[0][i] = i + 1;
    a[0][n - 1] = sum;

    for (int i = 1; i < n; ++i)
    for (int j = 0; j < n; ++j)
        a[i][j] = a[i - 1][j] + sum;

    set <ll> s;

    for (int i = 0; i < n; ++i)
    for (int j = 0; j < n; ++j)
        s.insert(a[i][j]);

    if (int(s.size()) != n * n) {
        cout << "-1\n";
        return 0;
    }

    for (int i = 0; i < n; ++i, cout << "\n")
    for (int j = 0; j < n; ++j)
        cout << a[i][j] << " ";
}

• Subtask 1: 24 / 120