Add solution for problem 22.

README.md

@@ -1,6 +1,6 @@
 # [Project Euler](https://projecteuler.net) Solutions
 
-[![solved: 21 problems](https://img.shields.io/badge/solved-21_problems-f93.svg)](./src)
+[![solved: 22 problems](https://img.shields.io/badge/solved-22_problems-f93.svg)](./src)
 ![Python: 3.7](https://img.shields.io/badge/Python-3.7-3776ab.svg)
 [![Build Status](https://travis-ci.com/FranzDiebold/project-euler-solutions.svg?branch=master)](https://travis-ci.com/FranzDiebold/project-euler-solutions)
 [![license: MIT](https://img.shields.io/badge/license-MIT-brightgreen.svg)](./LICENSE.md)

src/p022_names_scores/p022_names_scores.py

@@ -0,0 +1,46 @@
+"""
+Problem 22: Names scores
+https://projecteuler.net/problem=22
+
+Using names.txt (right click and 'Save Link/Target As...'), a 46K text file containing
+over five-thousand first names, begin by sorting it into alphabetical order.
+Then working out the alphabetical value for each name,
+multiply this value by its alphabetical position in the list to obtain a name score.
+
+For example, when the list is sorted into alphabetical order, COLIN,
+which is worth 3 + 15 + 12 + 9 + 14 = 53, is the 938th name in the list.
+So, COLIN would obtain a score of 938 × 53 = 49714.
+
+What is the total of all the name scores in the file?
+"""
+
+from typing import Iterable
+
+
+def get_alphabetical_value(string: str) -> int:
+    """Get alphabetical value of a given string `string`.
+
+    Example: 'COLIN' -> 53 = 3 + 15 + 12 + 9 + 14
+    """
+    return sum([(ord(char) - ord('a') + 1) for char in string.lower()])
+
+
+def get_names_from_file(file_name: str) -> Iterable[str]:
+    """Get names as iterable from file with name `file_name`."""
+    with open(file_name, 'r') as file_object:
+        for line in file_object:
+            for item in line.replace('"', '').lower().split(','):
+                yield item
+
+
+def main() -> None:
+    """Main function."""
+    file_name = 'p022_names_scores/p022_names.txt'
+    total_name_scores = 0
+    for idx, name in enumerate(sorted(get_names_from_file(file_name)), 1):
+        total_name_scores += idx * get_alphabetical_value(name)
+    print(f'The total of all the name scores in the file "{file_name}" is {total_name_scores:,}.')
+
+
+if __name__ == '__main__':
+    main()