424 Integer Inquiry

C++语言: Codee#25719

01 /*
02 +++++++++++++++++++++++++++++++++++++++
03                 author: chm
04 +++++++++++++++++++++++++++++++++++++++
05 */
06
07 #include <map>
08 #include <set>
09 #include <list>
10 #include <queue>
11 #include <cmath>
12 #include <stack>
13 #include <bitset>
14 #include <cstdio>
15 #include <cctype>
16 #include <vector>
17 #include <cstdlib>
18 #include <cstring>
19 #include <fstream>
20 #include <sstream>
21 #include <iomanip>
22 #include <iostream>
23 #include <algorithm>
24
25 using namespace std;
26
27 FILE*            fin         = stdin;
28 FILE*            fout         = stdout;
29 const int        max_size     = 10086;
30
31 char sum[max_size], numb[max_size];
32
33 void reversenumber(char* str)
34 {
35     int len = strlen(str);
36     int tmp;
37     str[len]='0';                // discard the '\0' in the end of string
38     for(int i = 0, j = len - 1; i < j; ++i, --j)
39     {
40         tmp = str[i];
41         str[i] = str[j];
42         str[j] = tmp;
43     }
44 }
45
46 int main()
47 {
48 #ifndef ONLINE_JUDGE
49     freopen("c:\\in.txt", "r", stdin);
50     fout = fopen("c:\\garage\\out.txt", "w");
51 #endif
52     memset(sum, '0', sizeof(sum));
53     memset(numb, '0', sizeof(numb));
54
55     scanf("%s\n", sum);
56     reversenumber(sum);
57     while(scanf("%s\n", numb) && numb[0] != '0')
58     {
59         reversenumber(numb);
60         int cry = 0;
61         int tmp;
62         for(int i = 0; i < 110; ++i)
63         {
64             tmp = sum[i] - '0' + numb[i] - '0' + cry;
65             sum[i] = tmp % 10 + '0';
66             cry = tmp / 10;
67         }
68         memset(numb, '0', sizeof(numb));
69     }
70     int idx = 110;
71     while(sum[idx] == '0')
72         --idx;
73     while(idx >= 0)
74         fprintf(fout, "%c", sum[idx--]);
75     fprintf(fout, "\n");
76
77 #ifndef ONLINE_JUDGE
78     fclose(fout);
79     system("c:\\garage\\check.exe");
80     system("notepad c:\\garage\\out.txt");
81 #endif
82     return 0;
83 }