백준 11720번

원본 : www.acmicpc.net/problem/11720

11720번: 숫자의 합

 

풀이

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {

	public static void main(String[] args) throws Exception {
		
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(System.out));
		
		int n = Integer.parseInt(reader.readLine());
		int sum = 0;
		String str = reader.readLine();
		
		for (int i = 0; i < n; i++) {
			sum += Character.getNumericValue(str.charAt(i));
		}
		
		writer.write(String.valueOf(sum));
		
		writer.flush();
	}

}