Home > Programming > Project euler problem 22: Names scores

Project euler problem 22: Names scores


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?

Solution:

Solution is for this problem is straight forward. I have used python for the ease of string operations.

apyr=[]
def pyr():
    with open("names.txt", "r")as out:
        for i in out:
            i=i.replace('\"','')
            apyr = i.split(',')
    apyr = sorted(apyr)
    gsum = 0
    for i in range(1, len(apyr) + 1):
        lsum = 0
        for j in range(0, len(apyr[i - 1])):
            lsum += (ord(apyr[i - 1][j]) - 64)
        gsum += lsum * i
    print gsum


pyr()

Answer: 871198282

Time taken for the solution is:

real 0m0.160s
user 0m0.030s
sys 0m0.140s

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