2020-08-08 手机

https://www.luogu.com.cn/problem/P1765

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

long long qmi(int m, int k)
{
    int res = 1, t = m;
    while (k)
    {
        if (k&1) res = res * t;
        t = t * t;
        k >>= 1;
    }
    return res;
}


int read(){
    int x = 0,f = 1;
    char c = getchar();
    while (c<'0'||c>'9') {
        if (c=='-') {
            f = -1;
        }
        c = getchar();
    }
    while (c>='0'&&c<='9') {
        x = x*10+c-'0';
        c = getchar();
    }
    return x*f;
}
int key[30] = {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};
int main()
{
    string str;
    getline(cin, str);
    
    int click = 0;
    for (int i = 0; i<str.length(); i++) {
        if(str[i] >= 'a' && str[i] <= 'z')
            click += key[(str[i] - 'a')];
        else if(str[i] == ' ')
            click ++;
    }
    
    cout<<click;
    return 0;
}
/*
i have a dream
============
23
*/