[프로그래머스]Lv.1 시저 암호 C#

https://school.programmers.co.kr/learn/courses/30/lessons/12926

프로그래머스

소스코드

public class Solution
{
    public string solution(string s, int n)
    {
        string answer = "";

        char[] chars = s.ToCharArray();

        foreach (var item in chars)
        {
            int next = item + n;
            if (item == ' ')
            {
                answer += item;
            }
            else if (item <= 'Z')
            {
                answer += next > 'Z' ? (char)(next - 26) : (char)(next);
            }
            else if (item <= 'z')
            {
                answer += next > 'z' ? (char)(next - 26) : (char)(next);
            }
        }

        return answer;
    }
}