Files
PAT/PATBasic/1031.c
2022-01-08 03:01:51 +08:00

28 lines
658 B
C

#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; /* index, weighted sum and count for legal IDs */
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]) /* legal ID */
count++;
else /* illegal ID */
puts(ID);
}
if (count == N)
puts("All passed");
return 0;
}