#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
//#include <ext/pb_ds/tree_policy.hpp>
//#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
//using namespace __gnu_pbds;
#define FOR(i,start,end) for(int i=start;i<(int)(end);i++)
#define FORE(i,start,end) for(int i=start;i<=(int)end;i++)
#define RFOR(i,start,end) for(int i = start; i>end; i--)
#define RFORE(i,start,end) for(int i = start; i>=end; i--)
#define all(a) a.begin(), a.end()
#define mt make_tuple
#define v vector
#define sf scanf
#define pf printf
#define dvar(x) cout << #x << " := " << x << "\n"
#define darr(x,n) FOR(i,0,n) cout << #x << "[" << i << "]" << " := " << x[i] << "\n"
typedef long long ll;
typedef long double ld;
typedef pair<int, int > pii;
typedef pair<ll, ll> pll;
const ll MOD = 1000000007LL;
const ll PRIME = 105943LL;
const ll INF = 1e18;
//template <class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<class T> void minn(T &a, T b) { a = min(a, b); }
template<class T> void maxx(T &a, T b) { a = max(a, b); }
void io() {
#ifdef LOCAL_PROJECT
freopen("input.in", "r", stdin); freopen("output.out", "w", stdout);
#else
/* online submission */
#endif
ios_base::sync_with_stdio(false); cin.tie(NULL);
}
/**************************COCI 2016-2017 Contest 2 Problem 4 *************************/
int N, A[100][100];
void solveOdd() {
int cnt = 1;
FOR(i, 0, N) FOR(j, 0, N)
A[i][j] = cnt++;
}
void solveEven() {
int cnt = 1;
FOR(i, 0, N) {
FOR(j, 0, N - 1)
A[i][j] = cnt++;
cnt += N / 2;
A[i][N - 1] = cnt++;
}
int diff = A[1][0] - A[0][0];
FOR(j, 0, N)
A[N - 1][j] += diff*(N / 2);
}
void printArray() {
FOR(i, 0, N) FOR(j, 0, N)
cout << A[i][j] << (j == N - 1 ? "\n" : " ");
}
int main() {
io();
cin >> N;
if (N == 2) {
cout << "-1\n";
return 0;
}
if (N % 2 == 1)
solveOdd();
else
solveEven();
printArray();
return 0;
}
/*
...
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
488 KB |
Output is correct |
| 4 |
Correct |
2 ms |
508 KB |
Output is correct |
| 5 |
Correct |
2 ms |
532 KB |
Output is correct |
| 6 |
Correct |
2 ms |
628 KB |
Output is correct |
| 7 |
Correct |
3 ms |
720 KB |
Output is correct |
| 8 |
Correct |
3 ms |
796 KB |
Output is correct |
| 9 |
Correct |
3 ms |
796 KB |
Output is correct |
| 10 |
Correct |
3 ms |
796 KB |
Output is correct |
