def sum(startN,endN)
  return nil if startN > endN
  mySum = 0
  (startN...endN).each { |x| mySum = mySum + $values[x] }
  mySum
end

$values = Array.new(0)

c = nil
File.open("xptable.txt") do |f|
  f.readlines.each { |line| c = line.split(","); $values[c[0].to_i] = c[1].chop.to_f }
end

$pass25 = []
$pass50 = []
$pass75 = []
$pass100 = []

endN = 99; myArray = $pass100
mySum = 0
endN.downto(5) { |x| mySum = mySum + $values[x]; myArray[x] = mySum }

endN = 74; myArray = $pass75
mySum = 0
endN.downto(5) { |x| mySum = mySum + $values[x]; myArray[x] = mySum }

endN = 49; myArray = $pass50
mySum = 0
endN.downto(5) { |x| mySum = mySum + $values[x]; myArray[x] = mySum }

endN = 24; myArray = $pass25
mySum = 0
endN.downto(5) { |x| mySum = mySum + $values[x]; myArray[x] = mySum }

puts "Level\tEXP\tTo25\tTo50\tTo75\tTo100"

(5..99).each do |x|
  print "#{x}\t#{$values[x]}\t"
  print "#{$pass25[x]}\t"
  print "#{$pass50[x]}\t"
  print "#{$pass75[x]}\t"
  print "#{$pass100[x]}\t"
  print "\n"
end