Pasar a Binario

//gcc 5.4.0

#include  <stdio.h>
#include  <string.h>
#define MAX 16
int main()
{
    int cantNum, dif, i, j = 0,k,h,cont=0,aux=0;
    int matriz[100+1][MAX+1]={};

    do{
        scanf("%d",&cantNum);printf("%d \n",cantNum);
    }while((cantNum < 2)||(cantNum > 100));

    do{
        scanf("%d",&dif);printf("%d \n",dif);printf("\n");
    }while((dif < 0)||(dif > 16));

    unsigned short numero,copiaNumero;
    unsigned short bits[MAX];

    for(k = 0;k < cantNum;k++){

        scanf("%hu",&numero);printf("%d \n",numero);

        for(i=0; i< MAX ; i++){
            bits[i] = 0;
        }

        copiaNumero= numero;
        i = MAX-1;

        while(copiaNumero != 0){
            bits[i] = copiaNumero%2;printf("%d ",bits[i]);
            i--;
            copiaNumero = copiaNumero/2;
        }
        for(j=0;j<16;j++){
            printf("%d",bits[j]);
        }
    printf("\n");printf("\n");
    }
    return 0;

}