BestCoder Round #89 1001 Fxx and string

 1 #include <iostream>
 2 #include <cstdio>
 3 #include <cstring>
 4 #include <algorithm>
 5 
 6 using namespace std;
 7 
 8 int main()
 9 {
10     int t;
11     cin>>t;
12     while(t--) {
13 
14         char s[10000+5];
15         scanf("%s",s+1);
16         int len = strlen(s+1);
17         int ans = 0;
18         for(int i=1;i<=len;i++) {
19             for(int j=2;j*j*i<=len;j++) {
20                 int J = i*j,k=i*j*j;
21                 if(s[i]==‘y‘&&s[J]==‘r‘&&s[k]==‘x‘) ans++;
22                 else if(s[i]==‘x‘&&s[J]==‘r‘&&s[k]==‘y‘) ans++;
23 
24             }
25         }
26         cout<<ans<<endl;
27 
28     }
29     return 0;
30 }