Design a vending machine  which has different products in various slots  and can except 10, 20,50 and 100 Notes, it can also except wallet payment. Each product has certain Quantity and it will decrease once u take out that product from vending machine.\n\n* Accepting cash & wallet payment\n* Select slot ,Price ,Pay\n* Vend the Product / Cancel the transaction\n* Admin ->Loads the product in Vending Machine[Once in a day]\n\n\n![image](https://assets.leetcode.com/users/images/bb3b2bac-e5ce-4d96-83bf-103840be24b0_1647718684.1633294.jpeg)\n

Design a vending machine  which has different products in various slots  and can except 10, 20,50 and 100 Notes, it can also except wallet payment. Each product