Umetanje elementa u uredjen rastuci niz

#include <stdio.h>
#define N 100

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

void main()
{
    while(1)
        {
            int n,i;
            printf("Unesite duzinu niza n: "); scanf("%d",&n);
            if (n<=0 || n>N) break;
            printf("Unesite elemente niza: "); int a[N+1];
            for(i=0;i<n; scanf("%d",&a[i++]));
            printf("Unesite element za umetanje u niz: "); int b; scanf("%d",&b);
            i=n-1;
            while (i>=0 && a[i]>b)
            {
                a[i+1] = a[i]; i--;
            }
            a[i+1]=b;
            n++;

            printf("Niz nakon obrade izgleda ovako: "); for(i=0; i<n; printf("%d ",a[i++]));
            printf("\n\n");
        }
}