백준 5622번 - 다이얼

www.acmicpc.net/problem/5622

#include <iostream>
#include <string>

using namespace std;

int main() {
  string input;
  int result = 0;

  cin >> input;

  for(int i=0; i<input.size(); i++){
    if(input.at(i) == 1){
      result += 2;
    }
    else if(input.at(i) == 'A'||input.at(i) == 'B'||input.at(i) == 'C'){
      result += 3;
    }
    else if(input.at(i) == 'D'||input.at(i) == 'E'||input.at(i) == 'F'){
      result += 4;
    }
    else if(input.at(i) == 'G'||input.at(i) == 'H'||input.at(i) == 'I'){
      result += 5;
    }
    else if(input.at(i) == 'J'||input.at(i) == 'K'||input.at(i) == 'L'){
      result += 6;
    }
    else if(input.at(i) == 'M'||input.at(i) == 'N'||input.at(i) == 'O'){
      result += 7;
    }
    else if(input.at(i) == 'P'||input.at(i) == 'Q'||input.at(i) == 'R' ||input.at(i) == 'S'){
      result += 8;
    }
    else if(input.at(i) == 'T'||input.at(i) == 'U'||input.at(i) == 'V' ){
      result += 9;
    }
    else if(input.at(i) == 'W'||input.at(i) == 'X'||input.at(i) == 'Y' ||input.at(i) == 'Z'){
      result += 10;
    }

  }

  cout << result << endl;



}