Fuzija dva uredjenja niza

#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 na,nb,i;
            printf("Unesite duzinu niza na: "); scanf("%d",&na);
            if (na<0 || na>N) break;
            printf("Unesite elemente niza: "); int a[N];
            for(i=0;i<na; scanf("%d",&a[i++]));
            if (na==0) printf("\n");

            printf("Unesite duzinu niza nb: "); scanf("%d",&nb);
            if (nb<0 || nb>N) break;
            printf("Unesite elemente niza: "); int b[N];
            for(i=0;i<nb; scanf("%d",&b[i++]));
            if (nb==0) printf("\n");

            int ia=0, ib=0, ic=0, c[2*N];
            while (ia<na && ib<nb) c[ic++]= (a[ia]<b[ib]) ? a[ia++] : b[ib++];
            while (ia<na) c[ic++] = a[ia++];
            while (ib<nb) c[ic++] = b[ib++];
            int nc=ic;
            printf("Rezultujuci niz C izgleda ovako: "); for(ic=0; ic<nc; printf("%d ",c[ic++]));

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