solve #3000: Maximum Area of Longest Diagonal Rectangle in java

Author: anishLearnsToCode

README.md

@@ -880,7 +880,7 @@
 | 2974 | [Minimum Number Game](https://leetcode.com/problems/minimum-number-game)                                                                                               |                                                                                      [![Java](assets/java.png)](src/MinimumNumberGame.java)                                                                                      |                                                                                                                                   |
 | 2980 | [Check if Bitwise OR Has Trailing Zeros](https://leetcode.com/problems/check-if-bitwise-or-has-trailing-zeros)                                                         |                                                                              [![Java](assets/java.png)](src/CheckIfBitwiseORHasTrailingZeros.java)                                                                               |                                                                                                                                   |
 | 2996 | [Smallest Missing Integer Greater Than Sequential Prefix Sum](https://leetcode.com/problems/smallest-missing-integer-greater-than-sequential-prefix-sum)               |                                                                    [![Java](assets/java.png)](src/SmallestMissingIntegerGreaterThanSequentialPrefixSum.java)                                                                     |                                                                                                                                   |
-| 3000 | [Maximum Area of Longest Diagonal Rectangle](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle)                                                 |                                                                                                                                                                                                                                  |                                                                                                                                   |
+| 3000 | [Maximum Area of Longest Diagonal Rectangle](https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle)                                                 |                                                                            [![Java](assets/java.png)](src/MaximumAreaOfLongestDiagonalRectangle.java)                                                                            |                                                                                                                                   |
 | 3005 | [Count Elements With Maximum Frequency](https://leetcode.com/problems/count-elements-with-maximum-frequency)                                                           |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 3010 | [Divide an Array Into Subarrays With Minimum Cost I](https://leetcode.com/problems/divide-an-array-into-subarrays-with-minimum-cost-i)                                 |                                                                                                                                                                                                                                  |                                                                                                                                   |
 | 3014 | [Minimum Number of Pushes to Type Word I](https://leetcode.com/problems/minimum-number-of-pushes-to-type-word-i)                                                       |                                                                                                                                                                                                                                  |                                                                                                                                   |

src/MaximumAreaOfLongestDiagonalRectangle.java

@@ -0,0 +1,31 @@
+// https://leetcode.com/problems/maximum-area-of-longest-diagonal-rectangle
+// T: O(N)
+// S: O(1)
+
+public class MaximumAreaOfLongestDiagonalRectangle {
+    public int areaOfMaxDiagonal(int[][] dimensions) {
+        int maxArea = 0, maxDiagonal = 0;
+
+        for (final int[] rectangle : dimensions) {
+            final int diagonal = getDiagonal(rectangle);
+            final int area = getArea(rectangle);
+
+            if (diagonal > maxDiagonal) {
+                maxDiagonal = diagonal;
+                maxArea = area;
+            } else if (diagonal == maxDiagonal) {
+                maxArea = Math.max(maxArea, area);
+            }
+        }
+
+        return maxArea;
+    }
+
+    private static int getArea(int[] rectangle) {
+        return rectangle[0] * rectangle[1];
+    }
+
+    private static int getDiagonal(int[] rectangle) {
+        return rectangle[0] * rectangle[0] + rectangle[1] * rectangle[1];
+    }
+}