diff --git a/3.cpp b/3.cpp
new file mode 100644
index 0000000..c0ca1a3
--- /dev/null
+++ b/3.cpp
@@ -0,0 +1,101 @@
+#include <iostream>
+#include <vector>
+#include <algorithm>
+#include <random>
+
+using namespace std;
+
+// 遊戲設定
+const int NUM_COLORS = 7;
+const int INITIAL_HAND_SIZE = 1;
+
+// 顏色定義
+enum Color {
+    RED,
+    GREEN,
+    BLUE,
+    YELLOW,
+    ORANGE,
+    PURPLE,
+    PINK
+};
+
+// 玩家類別
+enum PlayerType {
+    HUMAN,
+    COMPUTER
+};
+
+// 玩家結構
+struct Player {
+    int id;
+    vector<Color> hand;
+    int score;
+};
+
+// 遊戲初始化
+void initializeGame(vector<Player>& players) {
+    // 初始化玩家
+    for (int i = 0; i < players.size(); ++i) {
+        players[i].id = i;
+        players[i].hand.resize(INITIAL_HAND_SIZE);
+    }
+}
+
+// 遊戲流程 (簡化版)
+void playGame() {
+    vector<Player> players;
+    initializeGame(players);
+
+    // 遊戲回合
+    for (int i = 0; i < 10; ++i) { // 假設遊戲回合數為 10
+        cout << "回合 " << i + 1 << endl;
+
+        // 人類玩家回合
+        if (players[0].id == HUMAN) {
+            // 玩家行動選擇
+            cout << "請選擇行動 (1. 抽牌, 2. 拿走區域卡)" << endl;
+            int choice;
+            cin >> choice;
+
+            if (choice == 1) {
+                // 抽牌
+                cout << "已抽牌" << endl;
+            } else if (choice == 2) {
+                // 拿走區域卡
+                cout << "已拿走區域卡" << endl;
+            } else {
+                cout << "無效的選擇，請重新輸入" << endl;
+            }
+        }
+
+        // 程式隨機模擬電腦玩家的行動
+        if (players[0].id == HUMAN) {
+            // 电脑玩家随机选择行动
+            if (rand() % 2 == 0) {
+                cout << "電腦玩家選擇: 抽牌" << endl;
+            } else {
+                cout << "電腦玩家選擇: 拿走區域卡" << endl;
+            }
+        }
+
+        // 結束回合
+    }
+
+    // 結算分數
+    cout << "結算分數" << endl;
+    // 顯示每個玩家的分數
+    for (int i = 0; i < players.size(); ++i) {
+        cout << "玩家 " << i << " 分數: " << players[i].score << endl;
+    }
+
+    // 詢問是否再來一次或離開程式
+    char choice;
+    cout << "是否再來一次 (y/n)? ";
+    cin >> choice;
+}
+
+int main() {
+    playGame();
+    return 0;
+}
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