Problem https://leetcode.com/problems/excel-sheet-column-title 1 → A 2 → B 3 → C … 26 → Z 27 = 1 * 26 + 1 → AA 28 = 1 * 26 + 2 → AB Solution Time Complexity: O(log(columnNumber)) Space Complexit ...
Problem Counpute len([i for i in range(n) if is_prime(i)]) https://leetcode.com/problems/count-primes First Solution (Time Limit Exceeded) 質數的定義 屬於自然數 ℕ (大於 0 ) 只有兩個正因數 ( 1 和自己) 驗證是否 n 為質數只需要驗證 [2, ⌊n ...
Routing in Flask FLUTTER_DIR = os.path.join(os.sep, ...) @app.route("/app/<path:path>", methods=['GET', 'POST']) def flutter(path): path_ = path.split("/") if len(path) < 2: abort(404) projec ...
Ownership & Permissions 參考 查看權限 Ownership User (Owner) Group Others Permissions Read Write Execute Commands 群組與使用者相關操作 查看使用者所屬群組 cat /etc/group | grep {username} 新建群組 sudo addgroup {group_name} 刪除 ...
~/.ssh/config Host ... HostName ... User ... IdentityFile .../....pem Username in EC2 Instance Amazon EC2: Manage users on your Linux instance – Default user names
lib/main.dart This file contains the main entry point and the application widgets. lib/config.dart This file contains the environment settings. pubspec.yaml This file contains the package configurati ...
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https://leetcode.com/problems/minimum-difficulty-of-a-job-schedule Solution: Top-Down DP n := len(jobDifficulty) Time Complexity: O((d * n) * n) = O(d * (n ** 2)) recursion call stack: O(d * n) for i ...
Format 件名 (Title)：【{自分の所属する組織名}】{用件}について 本文 (Body)： {宛名：[{組織名}][{部署名}][{役職}]{名前}様} お世話になっております (冒頭の挨拶)。[{組織名}の]{名前}です。 {本メールの結論} {詳細内容} よろしくお願いいたします (結びの挨拶)。 {署名 (簽名檔；Signature Line/Block)} 冒頭の挨拶の例 お世 ...
