2 files changed, 76 insertions, 0 deletions
diff --git a/challenge-208/sgreen/python/ch-1.py b/challenge-208/sgreen/python/ch-1.py
new file mode 100755
index 0000000000..9ab9f318d4
--- /dev/null
+++ b/challenge-208/sgreen/python/ch-1.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+
+import re
+import sys
+
+
+def find_index_in_list(array, word):
+    '''Find the index of a word in a list'''
+    for i, w in enumerate(array):
+        if w == word:
+            return i
+
+    # This word does not appear in the list
+    return None
+
+
+def main(first_list, second_list):
+    # Turn the words into a list
+    first_list = re.findall(r'\w+', first_list)
+    second_list = re.findall(r'\w+', second_list)
+
+    # We set the index_sum to one more than the greatest possible solution
+    index_sum = len(first_list) + len(second_list) + 1
+    solution = []
+
+    # Loop through the first_list
+    for i1, w in enumerate(first_list):
+        # See if it appears in the second list
+        i2 = find_index_in_list(second_list, w)
+        if i2 is not None:
+            # The the index sum of this word
+            i = i1 + i2
+            if i < index_sum:
+                # It is better than the previous solution
+                solution = [w]
+                index_sum = i
+            elif i == index_sum:
+                # It is the same as the previous solution
+                solution.append(w)
+
+    # Print the results
+    if solution:
+        print('("' + '", "'.join(solution) + '")')
+    else:
+        print('()')
+
+
+if __name__ == '__main__':
+    main(sys.argv[1], sys.argv[2])
diff --git a/challenge-208/sgreen/python/ch-2.py b/challenge-208/sgreen/python/ch-2.py
new file mode 100755
index 0000000000..84952f60f1
--- /dev/null
+++ b/challenge-208/sgreen/python/ch-2.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+import sys
+
+
+def main(array):
+    missing = None
+    duplicate = None
+
+    for i in range(1, len(array)+1):
+        # Find out how many times this number appears in the list
+        count = sum(1 for n in array if n == i)
+        if count == 0:
+            missing = i
+        elif count > 1:
+            duplicate = i
+
+    if missing is None:
+        print(-1)
+    else:
+        print(f'({duplicate or ""}, {missing})')
+
+
+if __name__ == '__main__':
+    # Turn the strings into integers
+    n = [int(i) for i in sys.argv[1:]]
+    main(n)