Step by Step solution about How to resolve the algorithm Text processing/Max licenses in use step by step in the Ruby programming language

This Ruby code reads a text file called mlijobs.txt and analyzes its contents to identify the maximum number of simultaneous license uses and the corresponding timestamps. Here's a breakdown of how the code works:

1. Initialization:

   • out is initialized to 0, which represents the current count of simultaneous license uses.
   • max_out is initialized to -1, which will store the maximum count of simultaneous license uses encountered.
   • max_times is initialized as an empty array, which will store the timestamps associated with the maximum license use.

2. File Processing:

   • The code opens the mlijobs.txt file for processing line by line using the File.foreach method.

3. Line Analysis:

   • For each line in the file, it checks if the line contains the string "OUT."
     • If "OUT" is found, it means a license has been used, so it increments out by 1.
     • If "OUT" is not found, it means a license has been released, so it decrements out by 1.

4. Tracking Maximum Simultaneous Use:

   • After processing each line, the code checks if the current out value is greater than the previously recorded max_out value.
     • If out is greater than max_out, it means a new maximum has been reached. In this case, it updates max_out to the new value and clears the max_times array to store only the timestamps associated with the new maximum.
     • If out is equal to max_out, it means the current line is within the period of maximum simultaneous license use. In this case, it adds the timestamp from the line (assuming it's in the fourth column, separated by whitespace) to the max_times array.

5. Output:

   • After processing all the lines in the file, the code prints out the following:
     • The maximum simultaneous license use count (max_out) followed by the message "at the following times:"
     • A list of timestamps (max_times) where the maximum license use occurred, each on a separate line

In summary, this code reads a text file containing license usage information, tracks the number of simultaneous license uses, identifies the maximum use, and prints the corresponding timestamps.

out = 0
max_out = -1
max_times = []
 
File.foreach('mlijobs.txt') do |line|
  out += line.include?("OUT") ? 1 : -1
  if out > max_out
    max_out = out
    max_times = []
  end
  max_times << line.split[3]  if out == max_out
end
 
puts "Maximum simultaneous license use is #{max_out} at the following times:"
max_times.each {|time| puts "  #{time}"}