Function022

Write a function to construct  the image shown below.    
                                     1
                                   13
                                 135
                               1357
                                 135
                                   13
                                     1

#include <stdio.h>
#include <conio.h>
void degfun ( int );
void main ( )
{            
        int       n;
        clrscr ( );
        printf("\n\n\n\t Enter the number of rows..:"); scanf("%d",&n);
        printf("\n\n\n");
        degfun ( n );
        getch ( );
}                            
                                       
void degfun ( int     n )
{                        
        int      i, j, s;
        for ( i = 1; i <= n; i = i+2 )
        {                                              
                    printf("\t\t\t");
                    for ( s = n; s >= i; s = s - 2 )
                    {                                             
                                printf(" ");
                    }                                        
                    for ( j = 1; j <= i; j = j + 2 )
                    {                                                   
                                printf("%d", j );
                    }                             
                    printf("\n\n");
        }                                            
        for ( i = n - 2; i >= 1; i = i - 2 )
        {                                                  
                    printf("\t\t\t");
                    for ( s = n; s >= i; s = s - 2 )
                    {                                          
                                printf(" ");
                    }                                                  
                    for ( j = 1; j <= i; j = j + 2 )
                    {                                                
                                printf("%d",j);
                    }
                    printf("\n\n");
        }
}

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