Submission #242542

#	Time	Username	Problem	Language	Result	Execution time	Memory
242542		VEGAnn	Prosjecni (COCI16_prosjecni)	C++14	120 / 120	6 ms	640 KiB

prosjecni

#include <bits/stdc++.h>
#define all(x) x.begin(),x.end()
using namespace std;
const int N = 510;
int n, m, k, id[N], x, a[N][N];
string s[N], t;

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

#ifdef _LOCAL
    freopen("in.txt","r",stdin);
#endif // _LOCAL

    cin >> n;

    if (n & 1){
        for (int i = 1; i <= n * n; i++){
            cout << i;

            if (i % n == 0)
                cout << '\n';
            else cout << " ";
        }
    } else {
        if (n == 2)
            cout << -1;
        else {
            int sum = 0;

            for (int i = 0; i < n / 2; i++) {
                a[0][i] = i + 1;
                sum += a[0][i];
            }

            for (int i = n / 2; i < n - 1; i++) {
                a[0][i] = i + 2;
                sum += a[0][i];
            }

            a[0][n - 1] = a[0][n / 2] * n - sum;
            sum = a[0][n - 1];

            for (int i = 1; i < n / 2; i++){
                for (int j = 0; j < n; j++)
                    a[i][j] = a[i - 1][j] + sum;
            }

            for (int j = 0; j < n; j++)
                a[n / 2][j] = a[n / 2 - 1][j] + sum * 2;

            for (int i = n / 2 + 1; i < n - 1; i++){
                for (int j = 0; j < n; j++)
                    a[i][j] = a[i - 1][j] + sum;
            }

            for (int j = 0; j < n; j++)
                a[n - 1][j] = a[n - 2][j] + sum * (a[0][n - 1] - a[0][n - 2]);

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

    return 0;
}

• Subtask 1: 120 / 120