Solution to the problem 'Boolean Matrix'.

2dArrays/BooleanMatrix/Solution.java

@@ -0,0 +1,29 @@
+class Solution
+{
+    //Function to modify the matrix such that if a matrix cell matrix[i][j]
+    //is 1 then all the cells in its ith row and jth column will become 1.
+    void booleanMatrix(int matrix[][])
+    {
+        // code here 
+        int r = matrix.length;
+        int c = matrix[0].length;
+        int rTemp[] = new int[r];
+        int cTemp[] = new int[c];
+        for(int i = 0; i < r; i++){
+            for(int j = 0; j < c; j++){
+                if(matrix[i][j] == 1){
+                    rTemp[i] = 1;
+                    cTemp[j] = 1;
+                }
+            }
+        }
+
+        for(int i = 0; i < r; i++){
+            for(int j = 0; j < c; j++){
+                if(rTemp[i] == 1 || cTemp[j] == 1){
+                    matrix[i][j] = 1;
+                }
+            }
+        }
+    }
+}

2dArrays/BooleanMatrix/demo.txt

@@ -0,0 +1 @@
+