Submission #226187

#TimeUsernameProblemLanguageResultExecution timeMemory
226187osaaateiasavtnlProsjecni (COCI16_prosjecni)C++14
24 / 120
6 ms384 KiB
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcount
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    #define endl '\n'
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    int n;
    cin >> n;
 
    if (n == 2) {
        cout << "-1" << endl;
        exit(0);
    }   

    int x = 0;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < n; ++j) {
            cout << x << ' ';
            ++x;
        }   
        cout << endl;
    }   
}
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