算法训练：身份证号码升级

 1 #include<stdio.h>
 2 #include<stdlib.h>
 3 
 4 int main(void)
 5 {
 6     char dentity[15] = {0};
 7     char Dealdentity[18] = { 0 };
 8     int i,j;
 9 
10     for (i = 0; i < 15; i++)
11     {
12         scanf("%c", &dentity[i]);
13     }
14     
15     for (i = 0; i < 6; i++)
16     {
17         Dealdentity[i] = dentity[i];
18     }
19     int temp = i;
20     Dealdentity[i++] = ‘1‘;
21     Dealdentity[i++] = ‘9‘;
22 
23     for (j = temp; j < 15; j++) //j = 8
24     {
25         Dealdentity[i++] = dentity[j];
26     }
27 
28     int sum = 0;
29     sum = (Dealdentity[0]-48) * 7 + (Dealdentity[1]-48) * 9 + (Dealdentity[2]-48) * 10 + (Dealdentity[3]-48) * 5 + (Dealdentity[4]-48) * 8 + (Dealdentity[5]-48) * 4
30         + (Dealdentity[6]-48) * 2 + (Dealdentity[7]-48) * 1 + (Dealdentity[8]-48) * 6 + (Dealdentity[9]-48) * 3 + (Dealdentity[10]-48) * 7 + (Dealdentity[11]-48) * 9
31         + (Dealdentity[12]-48) * 10 + (Dealdentity[13]-48) * 5 + (Dealdentity[14]-48) * 8 + (Dealdentity[15]-48) * 4 + (Dealdentity[16]-48) * 2;
32     int Dsum = sum % 11;
33     //printf("%d %d", sum,Dsum);
34     switch (Dsum)
35     {
36     case 0:Dealdentity[i++] = ‘1‘; 
37         break;
38     case 1:Dealdentity[i++] = ‘0‘;
39         break;
40     case 2:Dealdentity[i++] = ‘x‘;
41         break;
42     case 3:Dealdentity[i++] = ‘9‘;
43         break;
44     case 4:Dealdentity[i++] = ‘8‘;
45         break;
46     case 5:Dealdentity[i++] = ‘7‘;
47         break;
48     case 6:Dealdentity[i++] = ‘6‘;
49         break;
50     case 7:Dealdentity[i++] = ‘5‘;
51         break;
52     case 8:Dealdentity[i++] = ‘4‘;
53         break;
54     case 9:Dealdentity[i++] = ‘3‘;
55         break;
56     case 10:Dealdentity[i++] = ‘2‘;
57         break;
58     }
59     for (i = 0; i < 18; i++)
60     {
61         printf("%c", Dealdentity[i]);
62     }
63     
64     return 0;
65 }

 1 #include<stdio.h>  
 2 int xishu[17] = { 7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2 };
 3 char jieguo[11] = { ‘1‘,‘0‘,‘x‘,‘9‘,‘8‘,‘7‘,‘6‘,‘5‘,‘4‘,‘3‘,‘2‘ };
 4 int main()
 5 {
 6     char a[18];
 7     int b[18];
 8     int i, sum = 0;
 9     gets(a);          
10     for (i = 14; i >= 6; i--)
11         a[i + 2] = a[i];
12     a[6] = ‘1‘;
13     a[7] = ‘9‘;
14     for (i = 0; i < 17; i++)
15     {
16         b[i] = a[i] - ‘0‘;
17         sum += b[i] * xishu[i];
18     }
19     sum %= 11;
20     a[17] = jieguo[sum];
21     for (i = 0; i < 18; i++)
22         printf("%c", a[i]);
23     printf("\n");
24     return 0;
25 }