From 97d2380154e568b8f84af825e3ee3d6e5cc2ff59 Mon Sep 17 00:00:00 2001
From: Amy Lee <amy.yj.lee@gmail.com>
Date: Tue, 26 Sep 2017 02:17:55 -0700
Subject: [PATCH 1/2] Passing all tests, code is rough

---
 string_manipulation.rb | 52 +++++++++++++++++++++++++++++++++++++-----
 1 file changed, 46 insertions(+), 6 deletions(-)

diff --git a/string_manipulation.rb b/string_manipulation.rb
index c8b52e1..3f936fc 100644
--- a/string_manipulation.rb
+++ b/string_manipulation.rb
@@ -1,22 +1,62 @@
 # A method to reverse a string in place.
 def string_reverse(my_string)
-  puts "NOT IMPLEMENTED"
+  #first, check if string has more than one letter
+  return my_string[0] if my_string.length <= 1
+  i = 0
+  j = my_string.length - 1
+  while i < j
+    temp = my_string[i]
+    my_string[i]= my_string[j]
+    my_string[j]= temp
+    i+=1
+    j-=1
+  end
+
+  return my_string
+
 end
 
 # A method to reverse each word in a sentence, in place.
 def reverse_words(my_words)
-  puts "NOT IMPLEMENTED"
+  #check for more than one word, else, return the one word reversed
+  first = 0
+  while first < my_words.length
+    first += 1 while my_words[first] == " "
+    last = first + 1
+
+    until my_words[last] == " " || last == my_words.length
+      last += 1
+    end
+    word = my_words[first...last]
+
+    my_words[first...last] = string_reverse(word)
+
+    first = last + 1
+  end
+
 end
 
 # A method to reverse the words in a sentence, in place.
 def reverse_sentence(my_sentence)
-  puts "NOT IMPLEMENTED"
+  reversed_string = string_reverse(my_sentence)
+
+  reverse_words(reversed_string)
 end
 
 # A method to check if the input string is a palindrome.
 # Return true if the string is a palindrome. Return false otherwise.
 def palindrome_check(my_phrase)
-  puts "NOT IMPLEMENTED"
+  #if word is one letter long?
+  i = 0
+  j = my_phrase.length - 1
+  while i < j
+    i+=1 until my_phrase[i] != " "
+    j-=1 until my_phrase[j] != " "
+    return false if my_phrase[i] != my_phrase[j]
+    i+=1
+    j-=1
+  end
+
   return true
 end
 
@@ -67,8 +107,8 @@ def encode_repeating(my_string)
 phrase = "empty"
 puts "BUG: empty is not a palindrome and should return false" if palindrome_check(phrase) != false
 # optional challenge
-# phrase = "nurses run"
-# puts "BUG: 'nurses run' is a palindrome and should return true" if palindrome_check(phrase) != true
+phrase = "nurses run"
+puts "BUG: 'nurses run' is a palindrome and should return true" if palindrome_check(phrase) != true
 puts "Palindrome test complete."
 
 # Optional Question #5

From c8f0893afa6d83c5d63add71c57b48ff9bebf20e Mon Sep 17 00:00:00 2001
From: Amy Lee <amy.yj.lee@gmail.com>
Date: Mon, 2 Oct 2017 00:33:18 -0700
Subject: [PATCH 2/2] Passing

---
 string_manipulation.rb | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/string_manipulation.rb b/string_manipulation.rb
index 3f936fc..ee1a392 100644
--- a/string_manipulation.rb
+++ b/string_manipulation.rb
@@ -1,6 +1,6 @@
 # A method to reverse a string in place.
 def string_reverse(my_string)
-  #first, check if string has more than one letter
+
   return my_string[0] if my_string.length <= 1
   i = 0
   j = my_string.length - 1
@@ -18,7 +18,6 @@ def string_reverse(my_string)
 
 # A method to reverse each word in a sentence, in place.
 def reverse_words(my_words)
-  #check for more than one word, else, return the one word reversed
   first = 0
   while first < my_words.length
     first += 1 while my_words[first] == " "
@@ -46,7 +45,6 @@ def reverse_sentence(my_sentence)
 # A method to check if the input string is a palindrome.
 # Return true if the string is a palindrome. Return false otherwise.
 def palindrome_check(my_phrase)
-  #if word is one letter long?
   i = 0
   j = my_phrase.length - 1
   while i < j