编辑代码

#include <stdio.h>
int main () {
    int x,howmany,current,retu;
    printf("Write it down\n");
    scanf("%d",&x);
    do{
        howmany++;
        current = x % 10;
        printf("%d\n",current);
        retu = retu*10 + current;
        printf("%d\n",retu);
        x /= 10;
    }while (x > 0);
    printf("\nthis is the length %d", howmany);
    return 0;
}