cf Strings of Power

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

 #include <cstdio>
 #include <cstring>
 #include <iostream>
 #include <algorithm>
 using namespace std;

 char str[];

 int main()
 {
     cin>>str;
     int k=strlen(str);
     __int64 t=,ans=;
     for(int i=; i<k; i++)
     {
         if(str[i]=='h'&&str[i+]=='e'&&str[i+]=='a'&&str[i+]=='v'&&str[i+]=='y'&&i+<k)
         {
             t++;
         }
         if(str[i]=='m'&&str[i+]=='e'&&str[i+]=='t'&&str[i+]=='a'&&str[i+]=='l'&&i+<k)
         {
             ans+=t;
         }
     }
     cout<<ans<<endl;
     return ;
 }