Merge pull request #10011 from oWnOIzRi/week267

add solutions week 267 in python

2 files changed, 74 insertions, 0 deletions

diff --git a/challenge-267/steven-wilson/python/ch-1.py b/challenge-267/steven-wilson/python/ch-1.py
new file mode 100644
index 0000000000..13dd7863b0
--- /dev/null
+++ b/challenge-267/steven-wilson/python/ch-1.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+
+from math import prod
+
+
+def product_sign(*integers):
+    ''' Given an array, find the sign of product of all integers in the given
+    array. The sign is 1 if the product is positive, -1 if the product is
+    negative and 0 if product is zero.
+    >>> product_sign(-1, -2, -3, -4, 3, 2, 1)
+    1
+    >>> product_sign(1, 2, 0, -2, -1)
+    0
+    >>> product_sign(-1, -1, 1, -1, 2)
+    -1
+    '''
+    if not integers or not all(isinstance(x, int) for x in integers):
+        raise TypeError('All paramaters should be of type int')
+
+    product = prod(integers)
+    return 1 if product > 0 else -1 if product < 0 else 0
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod(verbose=True)
diff --git a/challenge-267/steven-wilson/python/ch-2.py b/challenge-267/steven-wilson/python/ch-2.py
new file mode 100644
index 0000000000..05be9768be
--- /dev/null
+++ b/challenge-267/steven-wilson/python/ch-2.py
@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+
+from string import ascii_lowercase
+LINE_WIDTH = 100
+
+
+def line_counts(string, *widths):
+    ''' Given a string and a 26-items array containing the width of each
+    character from a to z, find out the number of lines and the width of the
+    last line needed to display the given string, assuming you can only fit 100
+    width units on a line.
+    >>> line_counts("abcdefghijklmnopqrstuvwxyz",10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10)
+    (3, 60)
+    >>> line_counts("bbbcccdddaaa",4,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10)
+    (2, 4)
+    '''
+    if not all(x in ascii_lowercase for x in string):
+        raise TypeError('string should be all ascii lowercase')
+
+    if not all(isinstance(x, int) for x in widths):
+        raise TypeError('All widths should be of type int')
+
+    if not len(widths) == 26:
+        raise TypeError("Not the corrent amount of arguments, there should be 26 widths")
+
+    widths_count = dict(zip(ascii_lowercase, widths))
+    lines = []
+    current_line = []
+    current_width = 0
+
+    for character in string:
+        character_width = widths_count[character]
+        if current_width + character_width > LINE_WIDTH:
+            lines.append(''.join(current_line))
+            current_line = []
+            current_width = 0
+        current_line.append(character)
+        current_width += character_width
+    lines.append(''.join(current_line))
+
+    return (len(lines), current_width)
+
+
+if __name__ == "__main__":
+    import doctest
+
+    doctest.testmod(verbose=True)