※[프로그래머스]Lv.1 모의고사 C# (나머지 값 활용)

https://school.programmers.co.kr/learn/courses/30/lessons/42840

프로그래머스

소스코드

using System;
using System.Collections.Generic;
using System.Linq;
public class Solution {
    public int[] solution(int[] answers) {
          int[] first = new int[] { 1, 2, 3, 4, 5 };
            int[] second = new int[] { 2, 1, 2, 3, 2, 4, 2, 5 };
            int[] third = new int[] { 3, 3, 1, 1, 2, 2, 4, 4, 5, 5 };

            Dictionary<int, int> counts = new Dictionary<int, int>
            {
                { 1, 0 },
                { 2, 0 },
                { 3, 0 }
            };

            for (int i = 0; i < answers.Length; i++)
            {
                    counts[1] += first[i % first.Length] == answers[i] ? 1 : 0;
                counts[2] += second[i % second.Length] == answers[i] ? 1 : 0;
                counts[3] += third[i % third.Length] == answers[i] ? 1 : 0;
            }

            int max = counts.Select(x => x.Value).Max();
            var answer = counts.Where(w => w.Value == max).Select(s => s.Key).ToArray();

            return answer;
    }
}