Decimal to Binary

#include <stdio.h>
#include <stdlib.h>

void decimal_to_binary(int decimal) {
    int binary[32],index=0;
    while (decimal>0) {
        binary[index]=decimal%2;
        decimal=decimal/2;
        index++;
    }

    printf(" Binary representation: ");
    for (int i=index-1;i>=0;i--) {
        printf("%d",binary[i]);
    }
}

int main() {
    int decimal;
    printf(" ");
    scanf("%d",&decimal);
    printf("Decimal number: %d", decimal);
    decimal_to_binary(decimal);
    return 0;
}