solves #2769: Find the Maximum Achievable Number in java

Author: anishLearnsToCode

Diff for: README.txt

@@ -837,7 +837,7 @@
 | 2748 | [Number of Beautiful Pairs](https://leetcode.com/problems/number-of-beautiful-pairs)                                                                                   |                                                                                   [![Java](assets/java.png)](src/NumberOfBeautifulPairs.java)                                                                                   |                                                                                                                                   |
 | 2760 | [Longest Even Odd Subarray With Threshold](https://leetcode.com/problems/longest-even-odd-subarray-with-threshold)                                                     |                                                                                   [![Java](assets/java.png)](src/LongestEvenOddSubarrayWithThreshold.java)                                                                                                                                               |                                                                                                                                   |
 | 2765 | [Longest Alternating Subarray](https://leetcode.com/problems/longest-alternating-subarray)                                                                             |                                                                                   [![Java](assets/java.png)](src/LongestAlternatingSubarray.java)                                                                                                                                               |                                                                                                                                   |
-| 2769 | [Find the Maximum Achievable Number](https://leetcode.com/problems/find-the-maximum-achievable-number)                                                                 |                                                                                                                                                                                                                                  |                                                                                                                                   |
+| 2769 | [Find the Maximum Achievable Number](https://leetcode.com/problems/find-the-maximum-achievable-number)                                                                 |                                                                                   [![Java](assets/java.png)](src/FindTheMaximumAchievableNumber.java)                                                                                                                                               |                                                                                                                                   |
 | 2778 | [Sum of Squares of Special Elements](https://leetcode.com/problems/sum-of-squares-of-special-elements)                                                                 |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2784 | [Check if Array is Good](https://leetcode.com/problems/check-if-array-is-good)                                                                                         |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 2788 | [Split Strings by Separator](https://leetcode.com/problems/split-strings-by-separator)                                                                                 |                                                                                                                                                                                                                                  |                                                                                                                                   |

Diff for: src/FindTheMaximumAchievableNumber.java

@@ -0,0 +1,9 @@
+// https://leetcode.com/problems/find-the-maximum-achievable-number
+// T: O(1)
+// S: O(1)
+
+public class FindTheMaximumAchievableNumber {
+    public int theMaximumAchievableX(int num, int t) {
+        return num + 2 * t;
+    }
+}