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💻 A2SV prep: Sliding window problem

🟡 3. Longest Substring Without Repeating Characters

class Solution:
    def lengthOfLongestSubstring(self, s: str) -> int:
        maxlen = 0
        L = R = 0
        hashset = set()
        while R < len(s):
            if s[R] in hashset:
                maxlen = max(maxlen, R - L) # maxlen = max(maxlen, len(hashset))
                while s[L] != s[R]:
                    hashset.remove(s[L])
                    L += 1
                L += 1

            hashset.add(s[R])
            R += 1
            maxlen = max(maxlen, R - L)
        
        return maxlen

🌟🚀 @AceCoding Presents! 🚀🌟

📢 Announcement: A2SV G6 In-Person Application Update

Dear Applicants,

Thank you for submitting your applications for the A2SV G6 recruitment process. After carefully reviewing all submissions, we are excited to announce that the shortlist of candidates selected for interviews will be shared very soon! 🎉 Please check your emails regularly for updates. 📧

Starting Monday, shortlisted candidates will be able to schedule their technical interviews. 📅

We highly recommend that you begin preparing for the technical interview to ensure your success. 🚀 The key topics to focus on include:
- Sorting
- Two Pointers
- Prefix Sum
- Sliding Window
- Stack & Queues

Best of luck to all applicants, and we look forward to meeting you during the interview process! 💪

Sincerely,
The A2SV Team

Here are the resources for the topics covered so far. We've also linked them in the Resources tab of the Community Sheet

• Python Learning Path
• Time and Space Complexity Learning Path
• Sorting Learning Path
• Stack and Queue Learning Path
• Recursion Learning Path
• LinkedList Learning Path
• Sliding Window and Two Pointers Learning Path
• Prefix Sum Learning Path
• Heaps Learning Path

🌟🚀 @AceCoding Presents! 🚀🌟

📢 Important Update for A2SV G6 In person Education Cohort!

If you've received an email from A2SV, congratulations! 🎉 You’ve been shortlisted for an interview for the A2SV G6 Cohort!

🗓 Interviews Begin: on Tuesday
📌 Focus Areas: Make sure to prepare thoroughly on the topics mentioned in the email.

If you haven’t checked your email yet, go check it now and start your preparation! 📨

🚀 @AceCoding Presents! 🚀

🧠 Python Quiz: Predict the Output

arr = [[0]] * 5  
print(arr)  
arr[0][0] = 1  
print(arr)  

What will the output be? You can choose your answer below.

@AceCoding Presents!

✅ Explanation for the above question

©️ credit for ChatGPT 🤝

✅ Sliding window, Two pointers, and Hash Table problem

🟡 567. Permutation in String

https://leetcode.com/problems/permutation-in-string/submissions/1482104785/

🚀 @AceCoding Presents! 🚀