C, Py3, C++解Leetcode 3612 與難題3614 Process String with Special Operations

C Py3 C++解Leetcode 3612 與難題3614 Process String with Special Operations

一個字串問題Leetcode 3612，用C++或Python是易如反掌，用C語言就難多了，然而這個解題經驗，順便用來解所謂hard 3614. Process String with Special Operations II

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A string problem like LeetCode 3612 is a breeze to solve in C++ or Python, but much more difficult in C. However, this solution guide can also be used to solve the so-called hard problem 3614, "Process String with Special Operations II".

[codes on Leetcode 3612]https://leetcode.com/problems/process-string-with-special-operations-i/solutions/8336531/4-cases-to-discussbeats-100-by-anwendeng-2mvj/

#anwendeng 

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 English timestamps based on the content:

00:00 - Introduction to LeetCode 3612 and 3614

00:21 - Problem analysis: Process String with Special Operations (3612)

01:14 - Explaining the four operations: Default, Star (*), Hash (#), and Percentage (%)

02:44 - Difference between Problem 3612 and Problem 3614

03:08 - Walking through Example 1 (3612)

04:18 - Walking through Example 2 (3612)

04:51 - Discussion on constraints and maximum string length

06:03 - General logic and C++ implementation strategy

08:30 - Challenges and memory management when using C

14:52 - LeetCode submission and C++ code walkthrough (3612)

15:12 - Python 3 implementation using match-case (3612)

16:08 - C implementation walkthrough (3612)

16:48 - Deep dive into the harder Problem 3614 (finding the k-th character)

18:16 - Strategy for 3614: Calculating length without full construction

20:07 - Backward loop logic for solving 3614 efficiently

23:18 - Final submission and performance results for 3614