list, Dequeue in C++ – Practical Notes

✅ 1. Basic Initialization cppCopyEditlist<int> l = {10, 20, 30}; ✅ 2. Accessing Elements (No [] indexing) cppCopyEditauto it = l.begin(); advance(it, 2); // move to 3rd element cout << *it; // Output: 30 ✅ 3. Modifying Value at Positio...