Alphabet Score

    1#include <bits/stdc++.h>
    2using namespace std;
    3using ll = long long;
    4using i128 = __int128;
    5const int inf = 1e9;
    6const ll INF = 1e18; //❄️
    7int main() {
    8    ios::sync_with_stdio(0); cin.tie(0); 
    9    string s; cin >> s;
    10    unordered_map<char, int> pos;
    11    int indx = 1;
    12    for (int i = 'a'; i <= 'z'; i++) {
    13        pos[(char)i] = indx;
    14        indx++;
    15    }
    16    vector<int> f(26);
    17    for (int i = 0; i < s.size(); i++) {
    18        f[s[i] - 'a']++;
    19    }
    20    int ans = 0;
    21    for (int i = 0; i < f.size(); i++) {
    22        if (f[i]) {
    23            ans += pos[(char) (i + 'a')] * f[i];
    24        }
    25    }
    26    cout << ans << '\n';
    27    return 0;
    28}