120. 身分證檢驗
user_6817964
c_cpp
3 years ago
628 B
6
Indexable
void ID_Check(char ID[]); void ID_Check(char ID[]) { int sum = 0, first; if (ID[0] == 73) { first = 34; } else if (ID[0] > 73) { first = ID[0] - 57; } else { first = ID[0] - 55; } sum += (first % 10) * 9 + (first / 10); for (int i = 1; i <= 8; i++) { sum += (ID[i] - 48) * (9 - i); } sum += (ID[9] - 48); if (sum % 10 == 0) { printf("real"); } else { printf("fake"); } } int main() { char ID[100]; while (scanf("%s", ID) != EOF) { ID_Check(ID); } return 0; }
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