Ruby Solution for Set Matrix Zeroes

ruby/0073-set-matrix-zeroes.rb

@@ -0,0 +1,38 @@
+def set_zeroes(matrix)
+
+ rows = matrix.length - 1
+ cols = matrix[0].length - 1
+ row_zero = false
+
+
+ (0..rows).each do |r|
+ (0..cols).each do |c|
+ if(matrix[r][c] == 0)
+ matrix[0][c] = 0
+ if r > 0
+ matrix[r][0] = 0
+ else
+ row_zero = true
+ end
+ end
+ end
+ end
+
+ (1...rows+1).each do |r|
+ (1..cols).each do |c|
+ matrix[r][c] = 0 if ((matrix[0][c] == 0)||(matrix[r][0] == 0))
+ end
+ end
+
+ if matrix[0][0] == 0
+ (0..rows).each do |r|
+ matrix[r][0] = 0
+ end
+ end
+
+ if row_zero
+ (0..cols).each do |c|
+ matrix[0][c] = 0
+ end
+ end
+end