欧拉计划(python) problem 17

Number letter counts

Problem 17

If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.

If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?


NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of "and" when writing out numbers is in compliance with British usage.


Answer:
21124
Completed on Wed, 28 Jan 2015, 15:17


这道题没有任何难度,只要熟悉了英文数字的表达方式循环一遍就好了,也可以计算出每个单词出现的次数不过这样太麻烦了

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