Program in C to insert an element at given position in an array

\* C Program to to insert an element at given position in an array *\

# include < stdio.h >
int   main( )
{

int   a[20], i, n, ele, pos  ;
printf(" Enter the Numbers of elements: ") ;
scanf("%d ", & n) ;
printf("\n Enter the elements of array : \n") ;
for (  i = 1 ; i < = n ; i++ )
scanf("%d ", & a[i]) ;
printf("\n Array enter by user are :\n") ;
for (  i = 1 ; i < = n ; i++ )
printf("%d \t", a[i]) ;

printf("\n Enter the position you want to enter :") ;
scanf("%d ", & pos) ;
printf("\n Enter the element you want to enter :") ;
scanf("%d ", & ele) ;

for (  i = 1 ; i < = n ; i++ )
{

if ( i > pos  )
a[i] = a[i-1] ;
else
{

if ( i == pos  )
a[i] = ele ;
else
a[i] = a[i] ;

}

}
printf("\n Array After Inserting element :\n") ;
for (  i = 1 ; i < = n ; i++ )
pcanf("%d \t", a[i]) ;
return ( 0 ) ;

}