易懂的笨方法👀️

#include <stdio.h>
int main(){
    int n;
    while(scanf("%d",&n)!=EOF){
        int a[1000]={0},i=0;
        while(n>=0){
            if(n%2==1){
                a[i]=1;
                n/=2;
                i++;
            }
            else{
                a[i]=0;
                n/=2;
                i++;
            }
            if(n==0)break;
        }i--;
         for(;i>=0;i--){
                printf("%d",a[i]);
            }
            printf("\n");
    }
}