Day 18/100 – Sorting cards = Insertion Sort ✔️ Step-by-step dry run ✔️ Optimized logic ✔️ Time: O(n²), Space: O(1) Great for small/nearly sorted data Full Video - https://t.co/2uN0SG3rpM Practice at https://t.co/lspfUD7cRx Use code LEVELUP20 for full access @ ₹2000 #DSA