Govind Pothuraju on Instagram: "👉 Comment “CODE” if you want C++, Java & Python solutions Day 44/200: LeetCode 121 — Buy & Sell Stock (Suffix Array Approach) 📈 Given an array prices, find the maximum profit you can achieve from a single buy-sell transaction. Instead of prefix logic (min so far), today we use Suffix Array → “max future price” approach 🤯 ✅ Brute Force: Check every (buy, sell) pair → O(n²) ❌ ✅ Optimal (Suffix Array): O(n) 🔥 Approach (Suffix Logic): 1
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