add 2806

Author: fishercoder1534

Diff for: paginated_contents/algorithms/3rd_thousand/README.md

@@ -11,6 +11,7 @@
 | 2815 | [Max Pair Sum in an Array](https://leetcode.com/problems/max-pair-sum-in-an-array/)                                                                                                             | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2815.java)                                       |                                      | Easy                                     |
 | 2812 | [Find the Safest Path in a Grid](https://leetcode.com/problems/find-the-safest-path-in-a-grid/)                                                                                                             | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2812.java)                                       |                                      | Medium                                   |BFS
 | 2810 | [Faulty Keyboard](https://leetcode.com/problems/faulty-keyboard/)                                                                                                              | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2810.java)                                       |                                      | Easy                                     |
+| 2806 | [Account Balance After Rounded Purchase](https://leetcode.com/problems/account-balance-after-rounded-purchase/)                                                                                                              | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2806.java)                                       |                                      | Easy                                     |
 | 2798 | [Number of Employees Who Met the Target](https://leetcode.com/problems/number-of-employees-who-met-the-target/)                                                                                                            | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2798.java)                                       |                                      | Easy                                     |
 | 2788 | [Split Strings by Separator](https://leetcode.com/problems/split-strings-by-separator/)                                                                                                            | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2788.java)                                       |                                      | Easy                                     |
 | 2784 | [Check if Array is Good](https://leetcode.com/problems/check-if-array-is-good/)                                                                                                            | [Java](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/thirdthousand/_2784.java)                                       |                                      | Easy                                     |

Diff for: src/main/java/com/fishercoder/solutions/thirdthousand/_2806.java

@@ -0,0 +1,21 @@
+package com.fishercoder.solutions.thirdthousand;
+
+public class _2806 {
+    public static class Solution1 {
+        public int accountBalanceAfterPurchase(int purchaseAmount) {
+            if (purchaseAmount == 100) {
+                return 0;
+            }
+            int balance = 100;
+            while (purchaseAmount >= 10) {
+                balance -= 10;
+                purchaseAmount -= 10;
+            }
+            if (purchaseAmount >= 5) {
+                balance -= 10;
+            }
+            return balance;
+        }
+    }
+
+}