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  1. import java.util.*;
  2. import java.io.*;
  3. import java.math.*;
  4.  
  5. class Solver {	
  6.     public static void main(String args[]) throws IOException{
  7.     	new Solver().run();
  8. 	}
  9.  
  10. 	StreamTokenizer in;
  11. 	PrintWriter out;
  12.  
  13. 	int nextInt() throws IOException{
  14. 		in.nextToken();
  15. 		return (int)in.nval;
  16. 	}
  17. 	void run() throws IOException{
  18. 		in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
  19. 		out = new PrintWriter(new OutputStreamWriter(System.out));
  20. 		solve();
  21. 		out.flush();
  22. 	}
  23. 	void solve() throws IOException{
  24. 		int n = nextInt();
  25.     	int[][] G = new int[n][n];
  26.     	if(n == 4)
  27.     		out.println("-1");
  28.     	else{
  29.     		for(int i = 0; i < n; i++)
  30.     			G[i][(i+1)%n] = 1;
  31.     		for(int y = 0; y < n; y++){
  32.     			for(int x = 0; x < n; x++){
  33.     				if(G[y][x] + G[x][y] == 0 && x != y){
  34.     					if(y % 2 == x % 2) G[y][x] = 1;
  35.     					else G[x][y] = 1;
  36.     				}
  37.     			}
  38.     		}
  39.     		for(int y = 0; y < n; y++){
  40.     			for(int x = 0; x < n-1; x++){
  41.     				out.print(G[y][x]);
  42.     				out.print(" ");
  43.     			}
  44.     			out.println(G[y][n-1]);
  45.     		}
  46.     	}
  47. 	}
  48. }
Success #stdin #stdout 0.1s 320512KB
comments (?)
stdin
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5
stdout
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0 1 1 0 0
0 0 1 1 0
0 0 0 1 1
1 0 0 0 1
1 1 0 0 0
https://ideone.com/eBcMcY
Граф-турнир
language:
Java (12.0.1)
created:
9 years ago
visibility:
public

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