Project Euler Problem 22

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?

# 在names.txt文档中有一系列的英文名字，对每个英文名字计算得分，这个得分是各个字母的顺序之和与它在排序后的文档中的位置之积，求所有的得分之和。

f = open('p022_names.txt', 'r')
name = f.read()
lst = name.split(',')
lst.sort()
sumtotal = 0
for name_str in lst:
    sumsub = 0
    for substr in name_str:
        if substr.isalpha():
                sumsub += (ord(substr) - 64)
    sumtotal += (lst.index(name_str)+1) * sumsub

print(sumtotal)

结果：871198282