1017 A除以B (20 分)

#include<stdio.h>
#include<string.h>

int main()
{
    int A, B, R=0, Q, len=0, i;
    int a[1001];
    char c;

    while((c=getchar()) != ' ')
    {
        a[len] = c - '0';
        len++;
    }
    scanf("%d", &B);

    for(i=0;i<len;i++)
    {
        A = R*10 + a[i];
        Q = A / B;
        R = A % B;
        if(i==0 && Q==0 && len>1)
            continue;
        else
            printf("%d", Q);
    }

    printf(" %d", R);

}