12 Aug 2026, 11:27 UTC502 views1 reactionsread 12 August 2026 List of Top 12 Coding Channels on WhatsApp:
1. Python Programming:
https://whatsapp.com/channel/0029VaiM08SDuMRaGKd9Wv0L
2. Coding Resources:
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3. Coding Projects:
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4. Coding Interviews:
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5. Java Programming:
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Coding Projects pinned a photo
11 Aug 2026, 06:54 UTC≈1,040 views2 reactionsread 12 August 2026 Photo
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10 Aug 2026, 12:04 UTC≈1,320 views2 reactionsread 12 August 2026 Photo
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10 Aug 2026, 12:03 UTC≈1,000 views2 reactionsread 12 August 2026 An LRU Cache removes the item that has not been used for the longest time when the cache reaches its capacity.
A common implementation uses:
• Hash Map for O(1) lookup.
• Doubly Linked List for O(1) insertion and removal.
Time Complexity:
• Get: O(1)
• Put: O(1)
2️⃣0️⃣0️⃣ How Would You Design a URL Shortener?
Answer:
A URL shortener converts a long URL into a short, unique URL.
Example:
Long URL: https://e…
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10 Aug 2026, 12:03 UTC801 views1 reactionsread 12 August 2026 🚀 Coding Interview Questions with Answers (Part 20)
1️⃣9️⃣1️⃣ What is the Two Sum Problem?
Answer:
The Two Sum problem asks you to find two elements in an array whose sum equals a given target.
Example:
Input: [2][7][11][15]
Target: 9
Output: [2][7]
A Hash Map can be used to store previously seen values and find the required complement efficiently.
Time Complexity: O(n)
Space Complexity: O(n)
1️⃣9️⃣2️⃣ Wha…
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10 Aug 2026, 05:06 UTC878 viewsread 12 August 2026 Photo
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9 Aug 2026, 06:39 UTC≈1,210 viewsread 12 August 2026 Photo
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8 Aug 2026, 21:12 UTC≈1,180 views7 reactionsread 12 August 2026 Time Complexity: O(n + m)
Space Complexity: O(n + m)
1️⃣8️⃣9️⃣ How Do You Check if Two Strings are Anagrams?
Answer:
Two strings are anagrams if they contain the same characters with the same frequencies, but possibly in a different order.
Example:
"listen" → "silent"
Both contain the same characters, so they are anagrams.
Python:
str1 = "listen"
str2 = "silent"
if sorted(str1) == sorted(str2):
print("A…
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8 Aug 2026, 21:12 UTC≈1,010 views3 reactionsread 12 August 2026 🚀 Coding Interview Questions with Answers (Part 19)
1️⃣8️⃣1️⃣ How Do You Reverse a String?
Answer:
Reversing a string means arranging its characters in the opposite order.
Example:
Input: "hello"
Output: "olleh"
Python:
text = "hello"
reversed_text = text[::-1]
print(reversed_text)
Time Complexity: O(n)
Space Complexity: O(n)
1️⃣8️⃣2️⃣ How Do You Find the Largest Element in an Array?
Answer:
Traverse th…
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8 Aug 2026, 09:12 UTC≈1,080 views1 reactionsread 12 August 2026 Photo
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7 Aug 2026, 11:12 UTC≈1,390 views2 reactionsread 12 August 2026 Photo
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