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#!/usr/bin/env ruby
require 'pry'
data = File.read("data.txt")
OPERATIONS = %i(+ *)
def test_combinations(test_value, vals)
test_results = [vals.shift]
all_vals_results = []
vals.each_with_index do |value, index|
previous_results = test_results.clone
test_results = []
previous_results.each do |start_value|
OPERATIONS.each do |operation|
test_result = start_value.public_send(operation, value)
#p "test_results: " + test_results.to_s
#p "previous: " + previous_results.to_s
#p "value: " + value.to_s
#p "operation "+ operation.to_s
#
#binding.pry if test_value == 3554112
# p previous_results if test_value == 3267
if test_result <= test_value && test_result > 0
test_results << test_result
end
if index + 1 == vals.size
all_vals_results << test_result
end
end
end
end
#binding.pry if test_value == 3554112
p all_vals_results
all_vals_results.any? { |v| v == test_value }
end
result = data.split("\n").map do |row|
vals = row.split ": "
test_value = vals.shift.to_i
vals = vals[0].split(" ").map(&:to_i)
#if vals.sum < test_value
# 0
#elsif vals.inject(&:*) > test_value
# 0
#elsif vals.sum == test_value
# test_value
#elsif vals.inject(&:*) == test_value
## test_value
#else
if test_combinations(test_value, vals)
test_value
else
0
end
#end
end
p result.sum
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