KY6 手机键盘

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

int main(){
    int t[26]={1,2,3,1,2,3,
         1,2,3,1,2,3,1,2,3,
         1,2,3,4,1,2,3,1,2,3,4};
    char s[101];
    while(cin>>s){
        int sum=0;
        char last;
        for(int i=0;i<strlen(s);i++){
            sum+=t[s[i]-'a'];
            if(last+t[s[i]-'a']==s[i]&&i>0)
                sum+=2;
            last=s[i]-t[s[i]-'a'];
        }
        cout<<sum<<endl;
    }
    return 0;
}

//     abc  def
//ghi  jkl  mno 
//pqrs tuv  wxyz