;; Gas-Optimized Storage Contract
;; Minimizes cost by using efficient data structures and operations
;; Use map instead of data-var for per-user storage (more efficient)
(define-map storage principal uint)
;; Single optimized write function
(define-public (store (val uint))
(ok (map-set storage tx-sender val))
)
;; Read function - returns none if not found
(define-read-only (load (user principal))
(map-get? storage user)
)
;; Batch write to save on multiple transactions
(define-public (store-batch (vals (list 10 uint)))
(ok (map set-val vals))
)
;; Helper for batch operation
(define-private (set-val (val uint))
(map-set storage tx-sender val)
)
;; Delete to free storage and get refund
(define-public (clear)
(ok (map-delete storage tx-sender))
)