java: add «1475. Final Prices With a Special Discount in a Shop»

URL:	https://leetcode.com/problems/final-prices-with-a-special-discount-in-a-shop/
Signed-off-by: Matej Focko <me@mfocko.xyz>

java/final-prices-with-a-special-discount-in-a-shop.java

@@ -0,0 +1,16 @@
+class Solution {
+  public int[] finalPrices(int[] prices) {
+    int[] result = prices.clone();
+
+    var stack = new Stack<Integer>();
+    for (int i = 0; i < prices.length; ++i) {
+      while (!stack.isEmpty() && prices[stack.peek()] >= prices[i]) {
+        result[stack.pop()] -= prices[i];
+      }
+
+      stack.add(i);
+    }
+
+    return result;
+  }
+}