Submission #76051471

---

Source Code Expand

#include <bits/stdc++.h>
using namespace std;

int main() {
    int N;
    cin >> N;
    cin.ignore(); // ignore newline after N

    string sentence;
    getline(cin, sentence); // read full line with spaces

    stringstream ss(sentence);
    vector<string> words;
    string word;
    while (ss >> word) words.push_back(word);

    // phone keypad mapping
    vector<char> numbers(26);
    string mapping[] = {"2","2","2",  // a,b,c
                        "3","3","3",  // d,e,f
                        "4","4","4",  // g,h,i
                        "5","5","5",  // j,k,l
                        "6","6","6",  // m,n,o
                        "7","7","7","7", // p,q,r,s
                        "8","8","8",  // t,u,v
                        "9","9","9","9"}; // w,x,y,z

    for (int i = 0; i < 26; i++) numbers[i] = mapping[i][0];

    string res = "";
    for (auto &w : words) {
        char c = tolower(w[0]); // handle uppercase too
        res += numbers[c - 'a'];
    }

    cout << res << endl;
    return 0;
}

Submission Info

Judge Result