diff --git a/lib/max_subarray.py b/lib/max_subarray.py
index 4e892e0..d8e0afb 100644
--- a/lib/max_subarray.py
+++ b/lib/max_subarray.py
@@ -9,4 +9,12 @@ def max_sub_array(nums):
         return 0
     if len(nums) == 0:
         return 0
-    pass
+    
+    now_max = 0
+    max_ending_here = nums[0]
+
+    for i in range(len(nums)):
+        now_max = max(nums[i], now_max + nums[i])
+        max_ending_here = max(max_ending_here, now_max)
+    return max_ending_here
+
diff --git a/lib/newman_conway.py b/lib/newman_conway.py
index 70a3353..1bca2d5 100644
--- a/lib/newman_conway.py
+++ b/lib/newman_conway.py
@@ -7,4 +7,13 @@ def newman_conway(num):
         Time Complexity: ?
         Space Complexity: ?
     """
-    pass
+    if num == 0:
+        raise ValueError
+
+    if num == 1:
+        return '1'
+
+    sequence = [0, 1, 1]
+    for i in range(3, num + 1):
+        sequence.append (sequence[sequence[i - 1]] + sequence[i - sequence[i -1]])
+    return ' '.join([str(s) for s in sequence[1:]])