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  1. #include <stdio.h>
  2.  
  3. int main (){
  4.     int n;
  5.     scanf ("%d",&n);
  6.     while (n!=0){
  7.         int valorini=0, valorfim=n-1, valor=1, matriz[n][n];
  8.         if (n==1) printf ("   1\n   \n");
  9.         else{
  10.         for (int i=0; i<n-1; i++){
  11.             for (int j=valorini; j<=valorfim; j++){
  12.                 matriz[valorini][j]=valor;
  13.                 matriz[valorfim][j]=valor;
  14.                 matriz[j][valorini]=valor;
  15.                 matriz[j][valorfim]=valor;
  16.             }
  17.             valor++;
  18.             valorini++;
  19.             valorfim--;
  20.         }
  21.  
  22.         for (int i=0; i<n; i++){
  23.             for (int j=0; j<n; j++){
  24.                 printf (" ");
  25.                 printf ("%3d", matriz[i][j]);
  26.  
  27.             }
  28.             printf ("\n");
  29.         }
  30.  
  31.         printf (" \n");
  32.         }
  33.  
  34.     scanf ("%d",&n);
  35.     }
  36.     return 0;
  37. }
  38.  
  39.  
Success #stdin #stdout 0s 3300KB
comments (?)
stdin
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3
1
4
5
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stdout
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   1   1   1
   1   2   1
   1   1   1
 
   1
   
   1   1   1   1
   1   2   2   1
   1   2   2   1
   1   1   1   1
 
   1   1   1   1   1
   1   2   2   2   1
   1   2   3   2   1
   1   2   2   2   1
   1   1   1   1   1
 
   1   1   1   1   1   1
   1   2   2   2   2   1
   1   2   3   3   2   1
   1   2   3   3   2   1
   1   2   2   2   2   1
   1   1   1   1   1   1
https://ideone.com/sfPu92
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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