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implement hw 1 #761
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implement hw 1 #761
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Original file line number | Diff line number | Diff line change |
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def fact(n) | ||
(1..n).inject(1, :*) | ||
end | ||
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def binom(n,k) | ||
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fact(n) / ( fact(k) * fact(n-k) ) | ||
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end | ||
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def pascals_row(row, first_el) | ||
(0..row).map { |line| first_el * binom(row, line) } | ||
end | ||
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puts "Введите глубину дерева:" | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Prefer single-quoted strings when you don't need string interpolation or special symbols. |
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three_len = gets.chomp.to_i | ||
puts "Введите базовый номер:" | ||
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first_el = gets.chomp.to_i | ||
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number_max_len = pascals_row(three_len, first_el).max.to_s.length #для вывода числа с нулями в начале, если его длинна меньше длинны максимального элемента | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Missing space after #. |
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console_len = 160 # для центрирования дерева, значение для монитора 15" и разрешения 1366 х 768 | ||
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gaps = (" " * (number_max_len)) #для формирования отображения в консоле | ||
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help_str = "\/#{gaps}\\#{gaps}" #задание шаблона отображения ветвей дерева | ||
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(0..three_len).each do |i| | ||
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str = "" #для создания строки вывода на консоль каждой строчки дерева | ||
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pascals_row(i, first_el).each do | ||
|elem| str += elem.to_s.rjust(number_max_len, '0') + (gaps + " ") | ||
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end | ||
puts "#{" " * three_len.to_s.length}" + (help_str * i).chomp(gaps).center(console_len) #ветви | ||
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puts "#{i.to_s.rjust(three_len.to_s.length, '0')}" + str.chomp(gaps + " ").center(console_len, ",") #элементы | ||
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end | ||
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There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. Trailing whitespace detected. |
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Используй более дружелюбные переменные, чтобы можно было читать код легко, а не гадать что такое n, k или j