decimal -> binário.c

#include <stdio.h>

int main() {
    int num, aux, i = 0, numAlg=0;

    printf("Digite um numero na base decimal: ");
    scanf("%d", &num);

    aux = num;
    while(aux > 0) {
        aux /= 10;
        numAlg++;
    }

    int bin[numAlg*4];

    aux = num;
    while(aux > 0) {
        bin[i] = aux%2;
        aux /= 2;
        i++;
    }

    printf("\nDecimal: %d\nBinario: ", num);

    for(int j = i-1; j >= 0; j--) printf("%d", bin[j], i);

    return 0;
}