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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{  int n;
  12.          Scanner sc = new Scanner(System.in); 
  13.          n=sc.nextInt();
  14.          int[][] matrix;
  15.          matrix = new int[n][n];
  16.          for(int i=0;i < n;i++){
  17.             matrix[i][i]=1;
  18.          }
  19.          for(int i=0;i<n;i++){
  20.             for(int y=0;y<n;y++){
  21.                 if(matrix[i][y]!=1){
  22.                     matrix[i][y]=0;
  23.                 }
  24.             }
  25.          }
  26.          for(int i=0;i<n;i++){
  27.             for(int y=0;y<n;y++){
  28.                 System.out.print(matrix[i][y]);
  29.             }
  30.              System.out.println("\n");
  31.          }
  32. 	}
  33. }
Success #stdin #stdout 0.08s 711680KB
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stdin
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45 451 45 5 5 4 12  561  1 64 7 8 9 54 4 654 984 6 89 56 9 86 6 898 56 89 816 55 43 263   568 59 89 6 45 46 65 98 95
stdout
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100000000000000000000000000000000000000000000

010000000000000000000000000000000000000000000

001000000000000000000000000000000000000000000

000100000000000000000000000000000000000000000

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https://ideone.com/JE34ZB
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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