Add Python solutions

4 files changed, 83 insertions, 2 deletions

diff --git a/challenge-182/paulo-custodio/perl/ch-1.pl b/challenge-182/paulo-custodio/perl/ch-1.pl
index edbd2e53fd..dfc949e8f2 100644
--- a/challenge-182/paulo-custodio/perl/ch-1.pl
+++ b/challenge-182/paulo-custodio/perl/ch-1.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 # Challenge 182
 #
diff --git a/challenge-182/paulo-custodio/perl/ch-2.pl b/challenge-182/paulo-custodio/perl/ch-2.pl
index 24a734dfc7..bba31b5b77 100644
--- a/challenge-182/paulo-custodio/perl/ch-2.pl
+++ b/challenge-182/paulo-custodio/perl/ch-2.pl
@@ -1,4 +1,4 @@
-#!/usr/bin/perl
+#!/usr/bin/env perl
 
 # Challenge 182
 #
diff --git a/challenge-182/paulo-custodio/python/ch-1.py b/challenge-182/paulo-custodio/python/ch-1.py
new file mode 100644
index 0000000000..a92ca0bd4a
--- /dev/null
+++ b/challenge-182/paulo-custodio/python/ch-1.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+
+# Challenge 182
+#
+# Task 1: Max Index
+# Submitted by: Mohammad S Anwar
+#
+# You are given a list of integers.
+#
+# Write a script to find the index of the first biggest number in the list.
+# Example
+#
+# Input: @n = (5, 2, 9, 1, 7, 6)
+# Output: 2 (as 3rd element in the list is the biggest number)
+#
+#
+# Input: @n = (4, 2, 3, 1, 5, 0)
+# Output: 4 (as 5th element in the list is the biggest number)
+
+import sys
+
+in_list = sys.argv[1:]
+result = sorted(((value, index) for index, value in enumerate(in_list)), key=lambda x: x[0], reverse=True)[0][1]
+print(result)
diff --git a/challenge-182/paulo-custodio/python/ch-2.py b/challenge-182/paulo-custodio/python/ch-2.py
new file mode 100644
index 0000000000..ec9469f316
--- /dev/null
+++ b/challenge-182/paulo-custodio/python/ch-2.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+
+# Challenge 182
+#
+# Task 2: Common Path
+# Submitted by: Julien Fiegehenn
+#
+# Given a list of absolute Linux file paths, determine the deepest path to the
+# directory that contains all of them.
+# Example
+#
+# Input:
+#     /a/b/c/1/x.pl
+#     /a/b/c/d/e/2/x.pl
+#     /a/b/c/d/3/x.pl
+#     /a/b/c/4/x.pl
+#     /a/b/c/d/5/x.pl
+#
+# Ouput:
+#     /a/b/c
+
+import sys
+
+def extract_common_prefix(paths):
+    # check if all paths have the same prefix
+    dir_prefix = None
+    for i in range(len(paths)):
+        if not paths[i]:  # path empty
+            return None
+        if i == 0:
+            dir_prefix = paths[i][0]  # first path
+        else:
+            if dir_prefix != paths[i][0]:  # not same prefix
+                return None
+
+    # all have dir_prefix, shift if out
+    for path in paths:
+        path.pop(0)
+
+    return dir_prefix
+
+
+def common_prefix(sep, *paths):
+    # split paths by separator
+    paths = [path.split(sep) for path in paths]
+
+    # find common prefix
+    prefix = []
+    while (dir_prefix := extract_common_prefix(paths)) is not None:
+        prefix.append(dir_prefix)
+
+    return sep.join(prefix)
+
+
+sep = sys.argv[1]
+paths = sys.argv[2:]
+print(common_prefix('/', *paths))