https://school.programmers.co.kr/learn/courses/30/lessons/120813?language=csharp
using System;
public class Solution {
public int[] solution(int n) {
int[] answer;
if(n%2==0){
answer = new int[n/2];
} else {
answer = new int[(n/2)+1];
}
int index =0;
for(int i=1; i<=n; i++){
if(i%2!=0){
answer[index] = i;
index++;
}
}
return answer;
}
}