Two Sum - LeetCode
Two Sum - LeetCode
Oct 6, 2022
leetcode.com
My Ultimate LeetCode Tricks — PIRATE KING
My Ultimate LeetCode Tricks — PIRATE KING
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Visual.tech.explained on Instagram: "🛑 Stop scrolling. This coding question has failed 60%+ of developers in interviews. Longest Substring with At Most K Distinct Characters — and most people don’t even know where to start. Here’s the thing → there’s ONE pattern called the Sliding Window that cracks this in a single pass. Linear time. Zero brute force. I break it down step by step in this reel: → What the problem actually asks → Why the sliding window works → A live walkthrough with two pointer
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Sathwik bhat on Instagram: "Day 12/30 - LeetCode 136: Single Number 🎯 XOR magic unlocks O(1) space solution! ⚡ The approach: XOR all elements together Duplicates cancel out (a ⊕ a = 0) Single number remains (a ⊕ 0 = a) One pass, constant space! Time: O(n), Space: O(1) 🔥 XOR Basics (brushing up!): Same bits → 0 (1⊕1=0, 0⊕0=0) Different bits → 1 (1⊕0=1) a ⊕ a = 0 (self-canceling) a ⊕ 0 = a (identity property) Order doesn't matter (commutative) No HashSet needed—bit manipulation FTW 🧠 Drop "DAY
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skills2salary on Instagram: "Easy on LeetCode. Deadly in interviews 😬 This is LeetCode 485 – Max Consecutive Ones 👇 You’re given a binary array. Your task is to find the maximum number of consecutive 1s. 💡 What interviewers expect: • Single pass logic • Reset counter at the right time • No extra space ⏱️ Time Complexity: O(n) 📦 Space Complexity: O(1) 👉 Save this for revision 👉 Follow for daily DSA + interview prep #leetcode #dsa #codinginterview #python #programming"
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