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question@mail.ru
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Period of decimal fraction
📁 method, Advanced Python Topics, example
Problem: the function receives two integers (int(a), int(b)) as input. It should return the quotient a/b, with repeating digits (the period) enclosed in parentheses.
Examples:
1/3 = > 0.(3)29/12 = > 2.41(6)5/3 = > 1.(6)I approached solving the problem using brute force. I iterated through the fractional part, looking for matches. But in the case of 1/117, the period contains more than 90 digits, and iterating through the numbers takes longer than allowed by the problem.
What
answer@mail.ru
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My approach is to iterate through the database and check for matches:
First, let's get the database from this source
In the left window, in step 3, select Russian (Cyrillic) - in the right window I select United States, for generation specify only the fields we are interested in: Gender, Given Name and Surname, make the database the largest: 50000
Also, let's order a database for English names by analogy.
The process is not fast, so you can go make some tea and have a cigarette. When we come back, we will receive 2 emails with download links for our databases.
Let's write the code:
import pandas as pddfru = pd.read_csv('FNru.csv')dfen = pd.read_csv('FNen.csv')Log in to leave an answer
