蔣毓庭
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    # Judge2 - 誰要出下次上機考 ###### tags: `1091` `程式設計` `python` `上機考` ## 檔名 `climbGrid.py` ## 故事 :::info 毓庭助教最近在學吉他,可是他覺得爬格子很難,所以想請大家寫個程式幫他爬格子 喔說錯了,不是這個爬格子 因為助教覺得出上機考題燒腦又不討好,所以都不想出。請大家寫個程式,找出有幾種爬格子的方法,可以殘害某位助教 !! ::: ## 說明 :::success ### 爬格子規則 從圖的上方開始走,若遇到橫線就必須轉彎,只能往下走,最後到達終點 - 範例 - 第 0 條線從上方出發(起點),經過路線為紅線,最終到達第2條線(終點) - 從第 0 條直線開始,每條直線依序對應到的終點為 2 1 3 0 ![](https://i.imgur.com/KCHUkZl.png) ::: :::warning - 一條橫線只能連接兩條直線 - 同一個高度只會有一條橫線 - 下圖皆為**不會**發生的情況 ![](https://i.imgur.com/MRcSP40.png) ![](https://i.imgur.com/7lbXMqV.png) ::: :::danger 下圖為兩種不同的橫線擺放方式,但遊戲結果相同 (對應終點皆為 3210) ![](https://i.imgur.com/quSwkty.png) ::: ## 輸入 - `n` `countLine` : 有幾條直線, 有幾條橫線(以空白隔開) - `end` : 每條直線依序對應到的終點 ## 輸出 橫線有幾種擺放方式 ## 規範 - 禁止 import 任何東西 - 禁止 2 層以上的迴圈 - 禁止使用 global - 禁止使用公式計算答案 - 必須包含 main function - 必須包含至少一個 main 以外的函數 ## 範例 ![](https://i.imgur.com/hgoi0hj.png) ![](https://i.imgur.com/yFuMZJc.png) ![](https://i.imgur.com/xnorbUa.png) ![](https://i.imgur.com/pSIkkhB.png) ## 測資 #### 測資1 ```txt= 4 6 3 2 1 0 ``` #### 測資2 ```txt= 4 7 0 2 1 3 ``` #### 測資3 ```txt= 5 8 1 4 0 2 3 ``` #### 測資4 ```txt= 4 9 2 0 3 1 ``` ## Hint - 先建好地圖(橫線放好),再去爬格子,看最終結果跟題目要求的是否相同 - 要怎麼紀錄橫線擺放位置 ? - 用一個 list,從地圖由上而下紀錄每條橫線分別連接哪兩條直線 - ex : [[0,1],[2,3],[1,2],[0,1]] > 可以只記錄一條直線(?) - 要怎麼爬格子 ? - 方法一 : 選一條直線開始往下走,遇到橫線就轉彎 (從新的線繼續往下走) - 方法二 : 橫線 = 兩條直線交換位置 - 可參考作業 - n 皇后 - 排列組合 - 為什麼我沒辦法爬格子? - 因為你的吉 (ㄔㄥˊ) 他 (ㄕˋ) 裡面有蟲 ->🐛🐜🦟

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