solves cells with odd values in matrix

Author: anishLearnsToCode

README.md

@@ -324,8 +324,8 @@
 | 1228 | 🔒 [Missing A Number In Arithmetic Progression](https://leetcode.com/problems/missing-number-in-arithmetic-progression)                              |                                                                                                                                                                             |                                                                                                                                   |
 | 1232 | [Check If It Is A Straight Line](https://leetcode.com/problems/check-if-it-is-a-straight-line)                                                       |                                                       [![Java](assets/java.png)](src/CheckIfItIsASStraightLine.java)                                                        |                                                                                                                                   |
 | 1237 | [Find Positive Integer Solutions for a Given Equation](https://leetcode.com/problems/find-positive-integer-solution-for-a-given-equation)            |                                                                                                                                                                             |                                                                                                                                   |
-| 1243 | [Array Transformation](https://leetcode.com/problems/array-transformation)                                                                           |                                                                                                                                                                             |                                                                                                                                   |
-| 1252 | [Cells With Odd Values In Matrix](https://leetcode.com/problems/cells-with-odd-values-in-a-matrix)                                                   |                                                                                                                                                                             |                                                                                                                                   |
+| 1243 | 🔒 [Array Transformation](https://leetcode.com/problems/array-transformation)                                                                        |                                                                                                                                                                             |                                                                                                                                   |
+| 1252 | [Cells With Odd Values In Matrix](https://leetcode.com/problems/cells-with-odd-values-in-a-matrix)                                                   |                                                       [![Java](assets/java.png)](src/CellsWithOddValuesInMatrix.java)                                                       |                                                                                                                                   |
 | 1260 | [Shift 2D Grid](https://leetcode.com/problems/shift-2d-grid)                                                                                         |                                                                                                                                                                             |                                                                                                                                   |
 | 1266 | [Minimum Time Visiting All Points](https://leetcode.com/problems/minimum-time-visiting-all-points)                                                   |                                                                                                                                                                             |                                                                                                                                   |
 | 1271 | [Hexspeak](https://leetcode.com/problems/hexspeak)                                                                                                   |                                                                                                                                                                             |                                                                                                                                   |

src/CellsWithOddValuesInMatrix.java

@@ -0,0 +1,22 @@
+public class CellsWithOddValuesInMatrix {
+    public int oddCells(int m, int n, int[][] operations) {
+        final byte[] rowState = new byte[m];
+        final byte[] columnState = new byte[n];
+        for (int[] operation : operations) {
+            rowState[operation[0]] ^= 1;
+            columnState[operation[1]] ^= 1;
+        }
+        int oddElements = 0;
+        final int shiftedColumns = sum(columnState);
+        for (int row : rowState) {
+            oddElements += row == 0 ? shiftedColumns : n - shiftedColumns;
+        }
+        return oddElements;
+    }
+
+    private int sum(byte[] array) {
+        int sum = 0;
+        for (byte element : array) sum += element;
+        return sum;
+    }
+}