Merge remote-tracking branch 'upstream/master'

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diff --git a/challenge-048/paulo-custodio/python/ch-1.py b/challenge-048/paulo-custodio/python/ch-1.py
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+++ b/challenge-048/paulo-custodio/python/ch-1.py
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+#!/usr/bin/env python3
+
+# Challenge 048
+#
+# TASK #1
+# Survivor
+# There are 50 people standing in a circle in position 1 to 50. The person
+# standing at position 1 has a sword. He kills the next person i.e. standing at
+# position 2 and pass on the sword to the immediate next i.e. person standing at
+# position 3. Now the person at position 3 does the same and it goes on until
+# only one survives.
+#
+# Write a script to find out the survivor.
+
+people = [x for x in range(1, 51)]
+p = 0
+while len(people) > 1:
+    if p >= len(people)-1:
+        people = people[1:]
+    else:
+        people = people[0:p+1]+people[p+2:]
+    p += 1
+    if p >= len(people):
+        p = 0
+print(people[0])
diff --git a/challenge-048/paulo-custodio/python/ch-2.py b/challenge-048/paulo-custodio/python/ch-2.py
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+++ b/challenge-048/paulo-custodio/python/ch-2.py
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+#!/usr/bin/env python3
+
+# Challenge 048
+#
+# TASK #2
+# Palindrome Dates
+# Write a script to print all Palindrome Dates between 2000 and 2999. The format
+# of date is mmddyyyy. For example, the first one was on October 2, 2001 as it is
+# represented as 10022001.
+
+from datetime import datetime, timedelta
+
+dt = datetime(2000,1,1)
+while dt < datetime(3000,1,1):
+    str = dt.strftime("%m%d%Y")
+    if str[::-1] == str:
+        print(str)
+    dt += timedelta(days=1)