USACO CHAPTER 1 1.1 Ride 水题

水题，主要是学习文件输入输出。
 1 /*
 2 ID: ijustwa1
 3 LANG: C++
 4 TASK: ride
 5 */
 6 #include<cstdio>
 7 #include<cstring>
 8 
 9 using namespace std;
10 
11 const int base=16;
12 const int mod=47;
13 
14 char s[10];
15 char t[10];
16 
17 int main()
18 {
19     FILE *fin=fopen("ride.in","r");
20     FILE *fout=fopen("ride.out","w");
21 
22     fscanf(fin,"%s",s);
23     fscanf(fin,"%s",t);
24     int sums=1;
25     int sumt=1;
26     for(int i=0;s[i]!='';i++)
27     {
28         sums*=(s[i]-'0'-base);
29     }
30     sums%=mod;
31     for(int i=0;t[i]!='';i++)
32     {
33         sumt*=(t[i]-'0'-base);
34     }
35     sumt%=mod;
36 
37     if(sums==sumt)
38     {
39         fprintf(fout,"GO
");
40         //fprintf(stdout,"GO
");
41     }
42     else
43     {
44         fprintf(fout,"STAY
");
45         //fprintf(stdout,"STAY
");
46     }
47     return 0;
48 }
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