🎯 You MUST Know This: How the GCD Formula Actually Works — LeetCode 1071 (1 Minute)

Most people can use GCD in this problem —
but very few actually understand why the formula works.

In this new 60-second breakdown, you’ll learn:

✅ The real intuition behind using GCD for strings
✅ Why the compatibility check str1 + str2 == str2 + str1 is the key
✅ How GCD(len1, len2) instantly gives the pattern length
✅ A 10-second explanation interviewers love
💾 Save this — it upgrades your fundamentals permanently.

📌 YouTube (ENG 🇬🇧) — [VIDEO LINK]

Prefer Russian? Here are all platforms:

🇷🇺 YouTube (RU) — [VIDEO LINK]

🇷🇺 VK — [VIDEO LINK]

🇷🇺 RuTube — [VIDEO LINK]

If this helps you sharpen your interview intuition — drop a ❤️
It tells me to create more fast, high-precision breakdowns.

#LeetCode #CodingInterview #Python #Algorithms