[CLASS 1: 구현] 백준 11720 숫자의 합

11720번: 숫자의 합

https://www.acmicpc.net/problem/11720

 

# 코드

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(br.readLine());
        long sum = 0;
        String num = br.readLine();
        for (int i = 0; i < n; i++) {
            sum += Long.parseLong(num.substring(i, i+1));
        }
        System.out.println(sum);
        br.close();
    }
}