sukhchander

import java.util.Stack;

/*
Using a Stack
Traverse the string expression
- If the current character is a opening bracket ('(' or '{') then push it to stack
- If the current character is a closing bracket (')' or '}') then pop from stack
  and
  if the popped character is the matching opening bracket then balanced
  else

sukhchander

/*
The package has a weight limitation.
Your goal is to determine which things to put into the package so that the total weight is less than or equal to the package limit and the total cost is as large as possible.
You would prefer to send a package which has less weight if there is more than one package with the same price.
This is a variation of the Knapsack problem.
Input:
Your program should read lines from standard input. Each line contains the weight that a package can take (before the colon) and the list of things you need to pick from. Each thing is enclosed in parentheses where the 1st number is a thing's index number, the 2nd is its weight and the 3rd is its cost.
Max weight any package can take is <= 100.
There might be up to 15 things you need to choose from.
Max weight and max cost of any thing is <= 100.

sukhchander

TEXT = 'Given an arbitrary text document written in English, write a program
that will generate a concordance, i.e. an alphabetical list of all word
occurrences, labeled with word frequencies. Bonus: label each word with the
sentence numbers in which each occurrence appeared.'

def concordance1(string)
  result = {}
  string.split(".").each_with_index do |sentence, index|
    sentence.gsub(",", "").split(" ").each do |word|

sukhchander

class Array
  def flatflat
    result = []
    self.each do |elem|
      if elem.is_a?(Array)
        result.concat(elem.flatflat)
      else
        result.push(elem)
      end
    end

sukhchander

#!/usr/bin/env ruby

def max_path_sum(file)

  input = File.open(file).readlines

  numbers = input.collect { |line| line.split(" ").map(&:to_i) }

  # started from the bottom
  triangle_size = numbers.size - 2

sukhchander

                            SSID BSSID             RSSI CHANNEL HT CC SECURITY (auth/unicast/group)
                 DIRECT-roku-138 b0:a7:37:0b:17:2b -45  11      Y  US WPA2(PSK/AES/AES) 
                 DIRECT-roku-696 b0:a7:37:0e:3c:c3 -48  11      Y  US WPA2(PSK/AES/AES) 
                           VCHO0 00:26:b8:11:6d:e4 -70  6       Y  US WEP
                       SBG65803E 20:10:7a:7f:59:55 -81  1       Y  -- WPA(PSK/AES/AES) WPA2(PSK/AES/AES)

sukhchander

export GOPATH=$HOME/go
export PATH=$PATH:$GOPATH/bin

brew update
brew install go
brew install git
brew install mercurial

mkdir $HOME/go
mkdir -p $GOPATH/src/github.com/user

sukhchander

input = [
            { time: 201_201, x: 2 },
            { time: 201_201, y: 7 },
            { time: 201_201, z: 2 },
            { time: 201_202, a: 3 },
            { time: 201_202, b: 4 },
            { time: 201_202, c: 0 }
]

output = [

sukhchander

def multiples(max)
  (1...max).select {|i| i % 3 == 0 || i % 5 == 0 }.reduce(:+)
end

puts multiples(1000)

sukhchander

river = “************~~~”

river1 = “****~~~~”

river2 = “****************~~*~~~*”

# NOTES:
#
# acc. by 1
# stay the same speed