[BOJ] 11720 JAVA

숫자의 합

문제

내 풀이

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


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());
		int sum = 0;

		String str = br.readLine();

		for(int i = 0; i < N; i++)
		{
			sum += str.charAt(i) - '0';
		}

		System.out.print(sum);
	}
}