coreyjs

puts 'Daily Coding Challenge 1'
puts 'Given a list of numbers and a number k, return whether any two numbers from the list add up to k.'

input = [10, 15, 3, 7]
k = 17

puts "input = #{input.to_s}"
puts "k = #{k}"

input.each_with_index do |num, i|

coreyjs

puts 1

coreyjs

Begin Object Class=/Script/UnrealEd.MaterialGraphNode_Root Name="MaterialGraphNode_Root_0"
   Material=PreviewMaterial'"/Engine/Transient.My_Landscape_M"'
   NodePosX=560
   NodePosY=-240
   NodeGuid=3AE30DA94F8C789AFCCA76A064E7DFA7
   CustomProperties Pin (PinId=8465D6104324CDFC1236A7AA3BF0C172,PinName="Base Color",PinType.PinCategory="materialinput",PinType.PinSubCategory="5",PinType.PinSubCategoryObject=None,PinType.PinSubCategoryMemberReference=(),PinType.PinValueType=(),PinType.ContainerType=None,PinType.bIsArray=False,PinType.bIsReference=False,PinType.bIsConst=False,PinType.bIsWeakPointer=False,LinkedTo=(MaterialGraphNode_8 BD5EE9314271722DEBE601979B4CDC2F,),PersistentGuid=00000000000000000000000000000000,bHidden=False,bNotConnectable=False,bDefaultValueIsReadOnly=False,bDefaultValueIsIgnored=False,bAdvancedView=False,bOrphanedPin=False,)
   CustomProperties Pin (PinId=72F1750A40A5CF95548D899BDCDA51EF,PinName="Metallic",PinType.PinCategory="materialinput",PinType.PinSubCategory="6",PinType.PinSubCatego

coreyjs

#!/bin/ruby

require 'json'
require 'stringio'
require 'set'

# Complete the twoStrings function below.
#s1, s2: two strings to analyze . 
def twoStrings(s1, s2)

coreyjs

hash = {}
    0.upto(s1.length.to_i - 1).flat_map do |start|
        1.upto(s1.length - start).map do |length|
            hash[s1[start, length]] = length
        end
    end.uniq

coreyjs

#!/bin/ruby

require 'json'
require 'stringio'

# Complete the rotLeft function below.
def rotLeft(a, d)
    out = Array.new(a.length)
    (0..a.length-1).each do |i|
        new_location = (i + (a.length - d)) % a.length

coreyjs

from collections import Counter


def find_pairs(nums, k) -> int:
    # if k < 0, the result is 0
    if k < 0:
        return 0

    count = Counter(nums)
    pairs = set([])

coreyjs

class Storage
  attr_accessor :value

  def initialize
    @value = nil
    @map = {} # string, Storage
  end

  def map

coreyjs

# Function for calculating auc and roc

def build_roc_auc(model, X_train, X_test, y_train, y_test):
    '''
    INPUT:
    model - an sklearn instantiated model
    X_train - the training data
    y_train - the training response values (must be categorical)
    X_test - the test data
    y_test - the test response values (must be categorical)

coreyjs

def sigmoid(x):
    return 1 / (1 + np.exp(-x))

def output_formula(features, weights, bias):
    return sigmoid(np.dot(features, weights) + bias)

def error_formula(y, output):
    return - y*np.log(output) - (1 - y) * np.log(1-output)

def update_weights(x, y, weights, bias, learnrate):