We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Databases
  3. NoSQL - XML, MapReduce
  4. Querying XML Datastores with XPath - 7
  5. Discussions

Querying XML Datastores with XPath - 7

Sort by

recency

|

5 Discussions

|

  • phoenixdev100
     + 0 comments
    # Standard ruby library for XML parsing
require 'rexml/document'
include REXML

# Enter your code here. Read input from STDIN. Print output to STDOUT
xmlText = "" 

# Read the input XML Fragment
while line = gets()
	xmlText += line
end

doc = Document.new xmlText

# XPath Selector for computing the average popularity of the movies in the given XML fragment.
# Fill in the blanks to complete the required XPath selector query
puts XPath.match(doc,"sum(collection/movie/popularity) div count(collection/movie/popularity)")

  • yashdeora98294
     + 0 comments

    Here is Querying XML Datastores with XPath - 7 problem solution - https://www.gyangav.com/2022/11/hackerrank-querying-xml-datastores-with-xpath-7-problem-solution.html

  • ArmanT
     + 0 comments

    sum(//popularity) div count(//popularity)

  • kumaranSR4
     + 0 comments

    answer:

    puts XPath.match(doc,"sum(collection/movie/popularity) div count(collection/movie/popularity)")

  • zorgoz
     + 0 comments

    The problem description should warn that only XPath 1.0 functions can be used. XPath 2.0 contains "avg" in the specification. It seems that Ruby does not implement it.

No more comments