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1031 查验身份证

一个合法的身份证号码由 17 位地区、日期编号和顺序编号加 1 位校验码组成。校验码的计算规则如下:

首先对前 17 位数字加权求和,权重分配为:{7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};然后将计算的和对 11 取模得到值Z;最后按照以下关系对应Z值与校验码M的值:

Z:0 1 2 3 4 5 6 7 8 9 10
M:1 0 X 9 8 7 6 5 4 3 2
Z:0 1 2 3 4 5 6 7 8 9 10
M:1 0 X 9 8 7 6 5 4 3 2

现在给定一些身份证号码,请你验证校验码的有效性,并输出有问题的号码。

输入格式:

输入第一行给出正整数N(≤100)是输入的身份证号码的个数。随后N行,每行给出 1 个 18 位身份证号码。

输出格式:

按照输入的顺序每行输出 1 个有问题的身份证号码。这里并不检验前 17 位是否合理,只检查前 17 位是否全为数字且最后 1 位校验码计算准确。如果所有号码都正常,则输出All passed

输入样例 1:

tex
4
320124198808240056
12010X198901011234
110108196711301866
37070419881216001X
4
320124198808240056
12010X198901011234
110108196711301866
37070419881216001X

输出样例 1:

tex
12010X198901011234
110108196711301866
37070419881216001X
12010X198901011234
110108196711301866
37070419881216001X

输入样例 2:

tex
2
320124198808240056
110108196711301862
2
320124198808240056
110108196711301862

输出样例 2:

tex
All passed
All passed

Solution:

java
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Main {

    public static void main(String[] args) throws NumberFormatException, IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(in.readLine());
        int[] z = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
        char[] m = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};
        List<String> list = new ArrayList<String>();
        for (int i = 0; i < n; i++) {
            String s = in.readLine();
            if (!s.substring(0, 17).matches("\\d+")) {
                list.add(s);
                continue;
            }
            int len = s.length() - 1;
            int sum = 0;
            for (int j = 0; j < len; j++) {
                sum += (s.charAt(j) - '0') * z[j];
            }
            if (s.charAt(17) != m[sum % 11]) {
                list.add(s);
            }

        }
        if (list.size() > 0) {
            StringBuilder sb = new StringBuilder();
            for (String string : list) {
                sb.append(string).append("\n");
            }
            System.out.print(sb);
        } else {
            System.out.println("All passed");
        }
    }

}
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

public class Main {

    public static void main(String[] args) throws NumberFormatException, IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(in.readLine());
        int[] z = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
        char[] m = {'1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'};
        List<String> list = new ArrayList<String>();
        for (int i = 0; i < n; i++) {
            String s = in.readLine();
            if (!s.substring(0, 17).matches("\\d+")) {
                list.add(s);
                continue;
            }
            int len = s.length() - 1;
            int sum = 0;
            for (int j = 0; j < len; j++) {
                sum += (s.charAt(j) - '0') * z[j];
            }
            if (s.charAt(17) != m[sum % 11]) {
                list.add(s);
            }

        }
        if (list.size() > 0) {
            StringBuilder sb = new StringBuilder();
            for (String string : list) {
                sb.append(string).append("\n");
            }
            System.out.print(sb);
        } else {
            System.out.println("All passed");
        }
    }

}

Released under the MIT License.