1475\. Final Prices With a Special Discount in a Shop

Easy

Given the array `prices` where `prices[i]` is the price of the `ith` item in a shop. There is a special discount for items in the shop, if you buy the `ith` item, then you will receive a discount equivalent to `prices[j]` where `j` is the **minimum** index such that `j > i` and `prices[j] <= prices[i]`, otherwise, you will not receive any discount at all.

_Return an array where the `ith` element is the final price you will pay for the `ith` item of the shop considering the special discount._

**Example 1:**

**Input:** prices = [8,4,6,2,3]

**Output:** [4,2,4,2,3]

**Explanation:** 

For item 0 with price[0]=8 you will receive a discount equivalent to prices[1]=4, therefore, the final price you will pay is 8 - 4 = 4. 

For item 1 with price[1]=4 you will receive a discount equivalent to prices[3]=2, therefore, the final price you will pay is 4 - 2 = 2. 

For item 2 with price[2]=6 you will receive a discount equivalent to prices[3]=2, therefore, the final price you will pay is 6 - 2 = 4. 

For items 3 and 4 you will not receive any discount at all.

**Example 2:**

**Input:** prices = [1,2,3,4,5]

**Output:** [1,2,3,4,5]

**Explanation:** In this case, for all items, you will not receive any discount at all.

**Example 3:**

**Input:** prices = [10,1,1,6]

**Output:** [9,0,1,6]

**Constraints:**

*   `1 <= prices.length <= 500`
*   `1 <= prices[i] <= 10^3`