USACO Your Ride Is Here —

USACO Your Ride Is Here ——水题

题目链接：http://cerberus.delos.com:790/usacoprob2?a=nR34fDHld4J&S=ride

人家说USACO的题目适合入门……我还是先刷这个吧……

这道题目主要是学了一下USACO里面的文件输入输出格式

 1 /*
 2 ID: zypz457
 3 TASK: ride
 4 LANG: C++
 5 */
 6 #include <cstdio>
 7 #include <cstdlib>
 8 #include <cstring>
 9 #include <fstream>
10 using namespace std;
11 int main(void) {
12   ifstream fin("ride.in");
13   ofstream fout ("ride.out");
14   char a[10], b[10];
15   while (fin >> a >> b) {
16     int sum1, sum2, i, len1, len2;
17     len1 = strlen(a); len2 = strlen(b);
18     sum1 = sum2 = 1;
19     for (i = 0; i < len1; ++i) {
20       sum1 = (sum1*(a[i]-'A'+1))%47;
21     }
22     for (i = 0; i < len2; ++i) {
23       sum2 = (sum2*(b[i]-'A'+1))%47;
24     }
25     /*  
26     if (sum1 == sum2) fprintf(fout, "GO\n");
27     else fprintf(fout, "STAY\n");
28      *  */
29     if(sum1 == sum2) fout << "GO\n";
30     else fout << "STAY\n";
31   }
32   return 0;
33 }

不用每次交题目都复制了倒是……但是格式要求挺严格的……还要有注释。。。

好吧，读文件神马的不用那么麻烦……按照原来的习惯写就行。

 1 /*
 2 ID: zypz457
 3 TASK: ride
 4 LANG: C++
 5 */
 6 #include <cstdio>
 7 #include <cstdlib>
 8 #include <cstring>
 9 using namespace std;
10 int main(void) {
11   freopen("ride.in", "r", stdin);
12   freopen("ride.out", "w", stdout);
13   char a[10], b[10];
14   while (~scanf("%s%s",a, b)) {
15     int sum1, sum2, i, len1, len2;
16     len1 = strlen(a); len2 = strlen(b);
17     sum1 = sum2 = 1;
18     for (i = 0; i < len1; ++i) {
19       sum1 = (sum1*(a[i]-'A'+1))%47;
20     }
21     for (i = 0; i < len2; ++i) {
22       sum2 = (sum2*(b[i]-'A'+1))%47;
23     }
24     if (sum1 == sum2) printf("GO\n");
25     else printf("STAY\n");
26   }
27   return 0;
28 }

谢谢fray