<p>You are given an integer array <code>prices</code> where <code>prices[i]</code> is the price of the <code>i<sup>th</sup></code> item in a shop.</p> <p>There is a special discount for items in the shop. If you buy the <code>i<sup>th</sup></code> item, then you will receive a discount equivalent to <code>prices[j]</code> where <code>j</code> is the minimum index such that <code>j > i</code> and <code>prices[j] <= prices[i]</code>. Otherwise, you will not receive any discount at all.</p> <p>Return an integer array <code>answer</code> where <code>answer[i]</code> is the final price you will pay for the <code>i<sup>th</sup></code> item of the shop, considering the special discount.</p> <p> </p> <p><strong class="example">Example 1:</strong></p> <pre> <strong>Input:</strong> prices = [8,4,6,2,3] <strong>Output:</strong> [4,2,4,2,3] <strong>Explanation:</strong> 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. </pre> <p><strong class="example">Example 2:</strong></p> <pre> <strong>Input:</strong> prices = [1,2,3,4,5] <strong>Output:</strong> [1,2,3,4,5] <strong>Explanation:</strong> In this case, for all items, you will not receive any discount at all. </pre> <p><strong class="example">Example 3:</strong></p> <pre> <strong>Input:</strong> prices = [10,1,1,6] <strong>Output:</strong> [9,0,1,6] </pre> <p> </p> <p><strong>Constraints:</strong></p> <ul> <li><code>1 <= prices.length <= 500</code></li> <li><code>1 <= prices[i] <= 1000</code></li> </ul>