def alphabetical_value(name): return sum(ALPHABET.index(x)+1 for x in name.lower())
1, 3, 6, 10, 15, 21, 28, 36, 45, 55, ... By converting each letter in a word to a number corresponding to its alphabetical position and adding these values we form a word value. For example, the word value for SKY is 19 + 11 + 25 = 55 = t[10]. If the word value is a triangle number then we shall call the word a triangle word. Using words.txt, a 16K text file containing nearly two-thousand common English words, how many are triangle words? """ from utils import triangle_number_generator, ALPHABET tri = triangle_number_generator() tri_numbers = [tri.next()] while tri_numbers[-1]<1000: tri_numbers.append(tri.next()) with open('resources/words.txt') as infile: words = infile.readline().replace('"', '').strip().lower().split(',') tri_count = 0 for w in words: val = sum(ALPHABET.find(x)+1 for x in w) if val in tri_numbers: tri_count += 1 print tri_count