sgreen solutions to challenge 341

challenge-341/sgreen/README.md

@@ -1,3 +1,3 @@
-# The Weekly Challenge 340
+# The Weekly Challenge 341
 
-Blog: [Ascending Regex to remove the Duplicates](https://dev.to/simongreennet/weekly-challenge-ascending-regex-to-remove-the-duplicates-2bd)
+Blog: [Reversing my broken keys](https://dev.to/simongreennet/weekly-challenge-reversing-my-broken-keys-313l)

challenge-341/sgreen/blog.txt

@@ -0,0 +1 @@
+https://dev.to/simongreennet/weekly-challenge-reversing-my-broken-keys-313l

challenge-341/sgreen/perl/ch-1.pl

@@ -0,0 +1,22 @@
+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use experimental 'signatures';
+
+sub main (@array) {
+    my $input_string = lc shift @array;
+    my @broken_keys  = map { lc } @array;
+
+    my $completed_words = 0;
+    for my $word ( split ' ', $input_string ) {
+        if ( not grep { index( $word, $_ ) != -1 } @broken_keys ) {
+            $completed_words++;
+        }
+    }
+
+    say $completed_words;
+}
+
+main(@ARGV);

challenge-341/sgreen/perl/ch-2.pl

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+#!/usr/bin/env perl
+
+use strict;
+use warnings;
+use feature 'say';
+use experimental 'signatures';
+
+sub main (@array) {
+    my ( $input_string, $char ) = @array;
+
+    # Find the position of the first occurrence of char in input_string
+    my $pos = index( $input_string, $char );
+
+    # If char is not found, raise an error
+    if ( $pos == -1 ) {
+        die "Character '$char' not found in input string.\n";
+    }
+
+    # Reverse the first part of the string
+    say reverse( substr( $input_string, 0, $pos + 1 ) )
+      . substr( $input_string, $pos + 1 );
+}
+
+main(@ARGV);

challenge-341/sgreen/python/ch-1.py

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+#!/usr/bin/env python3
+
+import sys
+
+
+def broken_keyboard(input_string: str, broken_keys: list[str]) -> int:
+    """
+    Count the number of words that can be completely typed on a broken keyboard.
+
+    Args:
+        input_string (str): The input string containing words separated by spaces.
+        broken_keys (list[str]): A list of broken keys (characters).
+
+    Returns:
+        int: The number of words that can be fully typed without using any broken keys.
+    """
+
+    # Convert everything to lower case
+    input_string = input_string.lower()
+    broken_keys = [key.lower() for key in broken_keys]
+
+    # Count words that DON'T contain any broken keys
+    completed_words = 0
+    for word in input_string.split():
+        if not any(char in broken_keys for char in word):
+            completed_words += 1
+
+    return completed_words
+
+def main():
+    # The first argument is the input string, the rest are broken keys
+    input_string = sys.argv[1]
+    broken_keys = sys.argv[2:]
+    result = broken_keyboard(input_string, broken_keys)
+    print(result)
+
+
+if __name__ == "__main__":
+    main()

challenge-341/sgreen/python/ch-2.py

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+#!/usr/bin/env python3
+
+import sys
+
+
+def reverse_prefix(input_string: str, char: str) -> str:
+    """
+    Reverse the prefix of input_string up to and including the first occurrence of char.
+
+    Args:
+        input_string (str): The input string.
+        char (str): The character to find in the input string.
+
+    Returns:
+        str: The modified string with the prefix reversed.
+    """
+
+    # Find the position of the first occurrence of char in input_string
+    pos = input_string.find(char)
+
+    # If char is not found, raise an error
+    if pos == -1:
+        raise ValueError(f"Character '{char}' not found in input string.")
+
+    # Reverse the first part of the string
+    return input_string[pos::-1] + input_string[pos+1:]
+
+
+def main():
+    result = reverse_prefix(sys.argv[1], sys.argv[2])
+    print(result)
+
+
+if __name__ == "__main__":
+    main()

challenge-341/sgreen/python/test.py

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+#!/usr/bin/env python3
+
+import unittest
+ch_1 = __import__("ch-1")
+ch_2 = __import__("ch-2")
+
+
+class TestClass(unittest.TestCase):
+    def test_ch_1(self):
+        self.assertEqual(ch_1.broken_keyboard("Hello World", ["d"]), 1)
+        self.assertEqual(ch_1.broken_keyboard("apple banana cherry", ["a", "e"]), 0)
+        self.assertEqual(ch_1.broken_keyboard("Coding is fun", []), 3)
+        self.assertEqual(ch_1.broken_keyboard("The Weekly Challenge", ["a","b"]), 2)
+        self.assertEqual(ch_1.broken_keyboard("Perl and Python", ["p"]), 1)
+
+    def test_ch_2(self):
+        self.assertEqual(ch_2.reverse_prefix("programming", "g"), "gorpramming")
+        self.assertEqual(ch_2.reverse_prefix("hello", "h"), "hello")
+        self.assertEqual(ch_2.reverse_prefix("abcdefghij", "h"), "hgfedcbaij")
+        self.assertEqual(ch_2.reverse_prefix("reverse", "s"), "srevere")
+        self.assertEqual(ch_2.reverse_prefix("perl", "r"), "repl")
+
+
+if __name__ == "__main__":
+    unittest.main()