Merge pull request neetcode-gh#169 from r1cky0/patch-15

Create 73-Set-Matrix-Zeroes.java

Author: neetcode-gh

java/73-Set-Matrix-Zeroes.java

@@ -0,0 +1,40 @@
+class Solution {
+    public void setZeroes(int[][] matrix) {
+        int rows = matrix.length;
+        int cols = matrix[0].length;
+        boolean firstRow = false;
+        
+        for (int i = 0; i < rows; i++) {
+            for (int j = 0; j < cols; j++) {
+                if (matrix[i][j] == 0) {
+                    matrix[0][j] = 0;
+                    if (i == 0) {
+                        firstRow = true;
+                    } else {
+                        matrix[i][0] = 0;
+                    }
+                }
+            }
+        }
+        
+        for (int i = 1; i < rows; i++) {
+            for (int j = 1; j < cols; j++) {
+                if (matrix[0][j] == 0 || matrix[i][0] == 0) {
+                    matrix[i][j] = 0;
+                }
+            }
+        }
+        
+        if (matrix[0][0] == 0) {
+            for (int i = 0; i < rows; i++) {
+                matrix[i][0] = 0;
+            }
+        }
+        
+        if (firstRow) {
+            for (int j = 0; j < cols; j++) {
+                matrix[0][j] = 0;
+            }
+        }
+    }
+}