1031 查验身份证 (15 分)

#include <stdio.h>

int main()

{

    int N;

    int weight[] = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};

    char ZtoM[] = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};

    char ID[19];

 

    scanf("%d", &N);

    int d, sum, count = 0;     
    for(int i = 0; i < N; i++)

    {

        scanf("%s", ID);

 

        for(d = 0, sum = 0; d < 17 && ID[d] >= '0' && ID[d] <= '9'; d++)

            sum += (ID[d] - '0') * weight[d];

 

        if(d == 17 && ID[17] == ZtoM[sum % 11])    
            count++;

        else                                        

            puts(ID);

    }

    if(count == N)

        puts("All passed");

 

    return 0;

}