#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#define size 10//how many bits to present the integer

void getBits(int,int[],int);

int main(void){
    int bits [size]={0};//initial all bits to 0;
    getBits(24,bits,8);//10進位24的8進位表示法
    for(int i=size-1;i>=0;i--){
            printf("%d",bits[i]);
    }
    return 0;
}

void getBits(int integer,int bits[],int b){
    int q=integer;
    int k=0;
    while(q!=0){
        bits[k]=q%b;//get the mod;
        q=ceil(q/b);//Returns the smallest integer value greater than or equal to x.
        k+=1;
    }
}