Pushpa_Agr_C10_reverse_words

lib/reverse_words.rb

@@ -1,4 +1,51 @@
+require'pry'
 # A method to reverse each word in a sentence, in place.
 def reverse_words(my_words)
-  raise NotImplementedError
+
+  if my_words == nil
+    return nil
+  end
+
+
+  length = (my_words.length - 1)
+  i = 0
+  while i < length
+
+    while my_words[i] == " "
+      i = i + 1
+    end
+
+    start = i
+
+    while my_words[i] != " "
+      i = i + 1
+      break if my_words[i].nil?
+    end
+
+    end_i = i - 1
+
+    reverse_word(my_words, start, end_i)
+
+  end
+
+  return my_words
+
+end
+
+
+
+def reverse_word(my_words, start, end_i)
+
+  first = my_words[start] #b
+  last = my_words[end_i] #e
+
+  while start < end_i
+    my_words[start] = last
+    my_words[end_i] = first
+    start = start + 1
+    end_i = end_i - 1
+    first = my_words[start]
+    last = my_words[end_i]
+  end
+  return
 end