[Week-03] BOJ 2164

week-03/yc_2154_card.cs

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+using System;
+using System.Collections.Generic;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        int n = int.Parse(Console.ReadLine());
+        Queue<int> q = new Queue<int>();
+
+        for (int i = 1; i <= n; i++)
+        {
+            q.Enqueue(i);
+        }
+        while (q.Count > 1)
+        {
+            q.Dequeue();
+            q.Enqueue(q.Dequeue());
+        }
+        Console.WriteLine(q.Peek());
+    }
+}

week-03/yc_2164_card.java

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+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.util.Queue;
+import java.util.LinkedList;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        Queue<Integer> q = new LinkedList<>();
+        int n = Integer.parseInt(br.readLine());
+
+        for (int i = 1; i <= n; i++) {
+            q.add(i);
+        }
+        while (q.size() > 1) {
+            q.poll();
+            q.add(q.poll());
+        }
+        System.out.println(q.poll());
+    }
+}