Line 1 summed

sum_more.rb

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+# 5. (Harder) Find a number with the same value and position in the list
+require 'pry'
+
+lines = File.read("numbers.csv").lines
+# 1. Find the sum of numbers in the first row
+def sum_one_line l
+  numbers_as_strings = l.chomp.split ","
+  running_total = 0
+  numbers_as_strings.each do |n|
+    running_total += n.to_f
+  end
+  running_total
+end
+
+s = sum_one_line lines.first
+puts "Sum of the first line is: #{s}"
+
+
+# binding.pry
+# 2. Find the sum of all numbers in the file
+
+running_total = 0
+lines.each do |line|
+  s = sum_one_line line
+  running_total += s
+end
+
+puts "Sum of file: #{running_total}"
+
+
+# 3. How many numbers are in the file?
+s = lines.map {|l| l.split(",")}.flatten.count
+
+puts "Number of numbers in the file: #{s}"
+
+# 4. How many of those are even? Divisible by 7?
+all_tokens = lines.map {|l| l.split(",")}.flatten
+all_numbers = all_tokens.map {|t| t.to_i}
+
+evens = []
+all_numbers.each do |n|
+  if n.even?
+    evens.push n
+  end
+end
+e = evens.count
+puts "Number of evens: #{e}"
+
+sevens = []
+all_numbers.each do |n|
+  if n % 7 == 0
+    sevens.push n
+  end
+end
+s7 = sevens.count
+puts "Number of evens: #{s7}"
+
+
+#Optional code
+all_numbers.select {|n| n.even?}.count
+all_numbers.select {|n| n % 7 == 0}.count
+all_numbers.reject {|n| n % 7 == 0}.count