二维数组传参，外部函数要接收指针数组

题目：

1031 查验身份证 - PAT (Basic Level) Practice （中文） (pintia.cn)

#include "head.h"/*数组指针，指针指向数组，该数组为字符型数组，每个数组中有18个元素*/
int GetIdCards(char (*pidcards)[20], int maxlen)
{int n = 0;int i = 0;scanf("%d", &n);getchar();for (i = 0; i < n; ++i){gets(pidcards[i]);}return n;
}int IsCorrectIdCard(char *idcard)
{int i = 0;int sum = 0;int val[17] = {7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};char mode[11] = {'1','0','X','9','8','7','6','5','4','3','2'};for (i = 0; i < 17; ++i){if (idcard[i] < '0' || idcard[i] > '9'){return 0;}} for (i = 0; i < 17; ++i){sum += (idcard[i] - '0') * val[i];}if (idcard[17] == mode[sum % 11]){return 1;}else{return 0;}
}int main(void)
{char idcards[100][20] = {0};int len = 0;int i = 0;int allright = 1;len = GetIdCards(idcards, 100);for (i = 0; i < len; ++i){if (!IsCorrectIdCard(idcards[i])){allright = 0;printf("%s\n", idcards[i]);}}if (allright){printf("All Passed!\n");}return 0;
}

重点在于如何处理二维数组