cf Strings of Power

http://codeforces.com/contest/318/problem/B

 1 #include <cstdio>
 2 #include <cstring>
 3 #include <iostream>
 4 #include <algorithm>
 5 using namespace std;
 6 
 7 char str[2000000];
 8 
 9 int main()
10 {
11     cin>>str;
12     int k=strlen(str);
13     __int64 t=0,ans=0;
14     for(int i=0; i<k; i++)
15     {
16         if(str[i]=='h'&&str[i+1]=='e'&&str[i+2]=='a'&&str[i+3]=='v'&&str[i+4]=='y'&&i+4<k)
17         {
18             t++;
19         }
20         if(str[i]=='m'&&str[i+1]=='e'&&str[i+2]=='t'&&str[i+3]=='a'&&str[i+4]=='l'&&i+4<k)
21         {
22             ans+=t;
23         }
24     }
25     cout<<ans<<endl;
26     return 0;
27 }
View Code

 

posted @ 2014-04-14 21:57  null1019  阅读(125)  评论(0)  编辑  收藏  举报