ruby ПроверкавалидностиИННюрлицанаRuby（согласноhttp：//www.egrul.ru/test_inn.html）

Posted 2021-05-16

def valid_le_tax_id? (tax_id)
	tax_id = tax_id.to_s.split('')
	weights = [2,4,10,3,5,9,4,6,8,0]
	sum = tax_id.each_with_index.reduce(0){|result,item| 
		result += item[0].to_i * weights[item[1]]
	}%11%10
	return sum == tax_id[9].to_i
end