Deque problems

8 Deque DSA practice problems on CampusCode, each with statement, examples and constraints.

• 584. Sliding Window Maximum Easy Stack
• 621. Sliding Window Maximum (Monotonic Deque) Medium Stack
• 623. Jump Game VI (DP + Monotonic Deque) Medium Stack
• 644. Constrained Subsequence Sum Medium Stack
• 668. Sliding Window Minimum and Maximum Together Hard Stack
• 669. Max Sum of Rectangle No Larger Than K Hard Stack
• 670. Minimum Cost Jump Game (Monotonic Queue DP) Hard Stack
• 679. Maximum Robots Within Budget Hard Stack