From bf3b99b63c55aaa5d370d08ff81a425ddec9c974 Mon Sep 17 00:00:00 2001
From: Alok Shukla <alok.linuxmail@gmail.com>
Date: Tue, 13 Aug 2019 20:20:32 +0530
Subject: [PATCH 1/4] Solution for Euler 56

---
 project_euler/problem_56/__init__.py |  0
 project_euler/problem_56/sol1.py     | 15 +++++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 project_euler/problem_56/__init__.py
 create mode 100644 project_euler/problem_56/sol1.py

diff --git a/project_euler/problem_56/__init__.py b/project_euler/problem_56/__init__.py
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/project_euler/problem_56/sol1.py b/project_euler/problem_56/sol1.py
new file mode 100644
index 000000000000..1dfc67c5106f
--- /dev/null
+++ b/project_euler/problem_56/sol1.py
@@ -0,0 +1,15 @@
+def maximum_digital_sum(a,b):
+    '''
+    Considering natural numbers of the form, a**b, where a, b < 100,
+    what is the maximum digital sum?
+    :param a:
+    :param b:
+    :return:
+    '''
+    # RETURN the MAXIMUM from the list of SUMs of the list of INT converted from STR of BASE raised to the POWER
+    return max([sum([int(x) for x in str(base**power)]) for base in range(a) for power in range(b)])
+
+#Tests
+print(maximum_digital_sum(10,10), "is 45")
+print(maximum_digital_sum(100,100), "is 972")
+print(maximum_digital_sum(100,200), "is 1872")

From 2a6a25bddb145bd53a23e33d0959eeed51dd32c3 Mon Sep 17 00:00:00 2001
From: Alok Shukla <alok.linuxmail@gmail.com>
Date: Tue, 13 Aug 2019 21:55:28 +0530
Subject: [PATCH 2/4] Adding Type and Doctest as per guideline

---
 project_euler/problem_56/sol1.py | 34 +++++++++++++++++++++-----------
 1 file changed, 23 insertions(+), 11 deletions(-)

diff --git a/project_euler/problem_56/sol1.py b/project_euler/problem_56/sol1.py
index 1dfc67c5106f..42bec9aad58f 100644
--- a/project_euler/problem_56/sol1.py
+++ b/project_euler/problem_56/sol1.py
@@ -1,15 +1,27 @@
-def maximum_digital_sum(a,b):
-    '''
-    Considering natural numbers of the form, a**b, where a, b < 100,
-    what is the maximum digital sum?
-    :param a:
-    :param b:
-    :return:
-    '''
+import typing
+
+
+def maximum_digital_sum(a,b) -> int:
+    """
+        Considering natural numbers of the form, a**b, where a, b < 100,
+        what is the maximum digital sum?
+        :param a:
+        :param b:
+        :return:
+        >>> maximum_digital_sum(10,10)
+        45
+
+        >>> maximum_digital_sum(100,100)
+        972
+
+        >>> maximum_digital_sum(100,200)
+        1872
+    """
+
     # RETURN the MAXIMUM from the list of SUMs of the list of INT converted from STR of BASE raised to the POWER
     return max([sum([int(x) for x in str(base**power)]) for base in range(a) for power in range(b)])
 
 #Tests
-print(maximum_digital_sum(10,10), "is 45")
-print(maximum_digital_sum(100,100), "is 972")
-print(maximum_digital_sum(100,200), "is 1872")
+if __name__ == "__main__":
+    import doctest
+    doctest.testmod()

From d6fb746a758659aff3d41bcb50ae3b92a37c5dc9 Mon Sep 17 00:00:00 2001
From: Alok Shukla <alok.linuxmail@gmail.com>
Date: Tue, 13 Aug 2019 22:07:54 +0530
Subject: [PATCH 3/4] removing unused import

---
 project_euler/problem_56/sol1.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/project_euler/problem_56/sol1.py b/project_euler/problem_56/sol1.py
index 42bec9aad58f..f5cd61ea04b1 100644
--- a/project_euler/problem_56/sol1.py
+++ b/project_euler/problem_56/sol1.py
@@ -1,4 +1,3 @@
-import typing
 
 
 def maximum_digital_sum(a,b) -> int:

From 38eff76ca8db46d132a2cf246fd0c918005dc17b Mon Sep 17 00:00:00 2001
From: Alok Shukla <alok.linuxmail@gmail.com>
Date: Tue, 13 Aug 2019 22:11:23 +0530
Subject: [PATCH 4/4] correcting the way type check works

---
 project_euler/problem_56/sol1.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/project_euler/problem_56/sol1.py b/project_euler/problem_56/sol1.py
index f5cd61ea04b1..194a7a37af43 100644
--- a/project_euler/problem_56/sol1.py
+++ b/project_euler/problem_56/sol1.py
@@ -1,6 +1,6 @@
 
 
-def maximum_digital_sum(a,b) -> int:
+def maximum_digital_sum(a: int, b: int) -> int:
     """
         Considering natural numbers of the form, a**b, where a, b < 100,
         what is the maximum digital sum?