diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..9b38853
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,7 @@
+{
+    "python.testing.pytestArgs": [
+        "tests"
+    ],
+    "python.testing.unittestEnabled": false,
+    "python.testing.pytestEnabled": true
+}
\ No newline at end of file
diff --git a/lib/max_subarray.py b/lib/max_subarray.py
index 4e892e0..24f802b 100644
--- a/lib/max_subarray.py
+++ b/lib/max_subarray.py
@@ -2,11 +2,23 @@
 def max_sub_array(nums):
     """ Returns the max subarray of the given list of numbers.
         Returns 0 if  nums is None or an empty list.
-        Time Complexity: ?
-        Space Complexity: ?
+        Time Complexity: O(n)
+        Space Complexity: O(1)
     """
     if nums == None:
         return 0
     if len(nums) == 0:
         return 0
-    pass
+    
+    max_so_far = 0
+    max_ending_here = 0
+
+    for num in nums:
+        max_ending_here = max_ending_here + num
+        if max_so_far < max_ending_here:
+            max_so_far = max_ending_here
+    
+    if max_so_far <= 0:
+        return max(nums) 
+
+    return max_so_far
\ No newline at end of file
diff --git a/lib/newman_conway.py b/lib/newman_conway.py
index 70a3353..d17dbe0 100644
--- a/lib/newman_conway.py
+++ b/lib/newman_conway.py
@@ -1,10 +1,22 @@
 
 
-# Time complexity: ?
-# Space Complexity: ?
+# Time complexity: O(n)
+# Space Complexity: O(n)
 def newman_conway(num):
-    """ Returns a list of the Newman Conway numbers for the given value.
-        Time Complexity: ?
-        Space Complexity: ?
+    """ Returns a string of the Newman Conway numbers for the given value.
+        Time Complexity: O(n)
+        Space Complexity: O(n)
     """
-    pass
+    if num == 0:
+        raise ValueError
+    
+    if num == 1:
+        return "1"
+
+    seq = [0, 1, 1]
+
+    for i in range(3, num + 1):
+        next_num = seq[seq[i-1]] + seq[i - seq[i-1]]
+        seq.append(next_num)
+    
+    return ' '.join([str(n) for n in seq[1:num+1]])