| # The Experiment class represents a laboratory experiment involving samples and reagents. | |
| # It provides methods to assign samples and reagents to wells on a plate. | |
| # Each well can contain one sample-reagent combination. | |
| # Plates come in two sizes: 96 wells or 384 wells, arranged in a rectangular grid. | |
| # Each experiment can have multiple replicates, where each replicate is a set of sample-reagent combinations. | |
| # The class aims to minimize the number of plates used by efficiently arranging the samples and reagents. | |
| # frozen_string_literal: true | |
| require 'matrix' |
| QAjaxBar.js:65 GET https://minsk.ca.chr.dev:3000/user/login-messages?language=en 500 (Internal Server Error) | |
| xhr.send @ QAjaxBar.js:65 | |
| dispatchXhrRequest @ xhr.js:178 | |
| cancellationExecute @ bluebird.js:962 | |
| Promise2._resolveFromExecutor @ bluebird.js:3100 | |
| Promise2 @ bluebird.js:2704 | |
| xhrAdapter @ xhr.js:12 | |
| dispatchRequest @ dispatchRequest.js:52 | |
| tryCatcher @ bluebird.js:5098 | |
| Promise2._settlePromiseFromHandler @ bluebird.js:3129 |
| class Array | |
| def sum | |
| inject(0) { |sum, x| sum + x } | |
| end | |
| end | |
| def solution(a) | |
| # write your code in Ruby 2.2 | |
| return unless a.is_a? Array |
| # An array A consisting of N integers is given. | |
| # Rotation of the array means that each element is shifted right by one index, | |
| # and the last element of the array is moved to the first place. | |
| # For example, the rotation of array A = [3, 8, 9, 7, 6] is [6, 3, 8, 9, 7] | |
| # (elements are shifted right by one index and 6 is moved to the first place). | |
| def solution(a, k) | |
| # write your code in Ruby 2.2 | |
| k.times do | |
| a = [a.last] + a.shift(a.size-1) |
| # A binary gap within a positive integer N is any maximal sequence of consecutive zeros | |
| # that is surrounded by ones at both ends in the binary representation of N. | |
| def solution(n) | |
| num_bin = n.to_s(2).tr('^0-9', '') | |
| return 0 if !num_bin.include?("0") || num_bin.chars.last.eql?("0") | |
| num_bin.scan(/0+/).max.size | |
| end |
| class ActiveRecord::Base | |
| def to_fixture | |
| output = {} | |
| model = self | |
| attrs = model.attributes.compact | |
| attrs.delete_if { |_k, v| v.nil? } | |
| attrs.each do |key, value| | |
| attrs[key] = value.to_time.utc if value.class == ActiveSupport::TimeWithZone |
| docker ps | |
| CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES | |
| 09789f2ba638 dmitryavramets/farmar:active_admin_de34b872636af1336628fb81d2c911c9d22e4c90 "/bin/sh -c 'rails d…" 2 weeks ago Up 2 weeks 0.0.0.0:3333->3000/tcp farmar_farmar_1 | |
| ubuntu@ip-172-31-28-247:~$ docker logs 09789f2ba638 | |
| D, [2018-05-23T19:55:52.853155 #5] DEBUG -- : (0.2ms) SELECT pg_try_advisory_lock(7712731876370246670) | |
| D, [2018-05-23T19:55:52.873994 #5] DEBUG -- : (1.9ms) SELECT "schema_migrations"."version" FROM "schema_migrations" ORDER BY "schema_migrations"."version" ASC | |
| D, [2018-05-23T19:55:52.879274 #5] DEBUG -- : ActiveRecord::InternalMetadata Load (0.8ms) SELECT "ar_internal_metadata".* FROM "ar_internal_metadata" WHERE "ar_internal_metadata"."key" = $1 LIMIT $2 [["key", "environment"], ["LIMIT", 1]] | |
| D, [2018-05-23T19:55:52.885056 #5] DEBUG -- : (0 |
• В чём разница между процессом и тредом?
• Что такое мультизадачность?
• Устройство файловой системы. Файловые дескрипторы, inode.
• Знаешь ли, что такое race condition? Сталкивался ли в реальной жизни (когда возникало и как боролся)? Когда может произойти?
| # encoding: utf-8 | |
| # config valid only for Capistrano 3 | |
| lock '3.6.1' | |
| # Project configuration options | |
| # ------------------------------ | |
| set :application, 'niftyordering' | |
| set :login, 'root' |
| require 'csv' | |
| require 'roo' | |
| require 'globalize' | |
| module Shoppe | |
| class Product < ActiveRecord::Base | |
| self.table_name = 'shoppe_products' | |
| # Add dependencies for products | |
| require_dependency 'shoppe/product/product_attributes' |
