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Max Slice
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| def max_slice(numbers) | |
| best_sum = nil | |
| best_slice = nil | |
| numbers.each_with_index do |number, index| | |
| numbers[index..numbers.size].each_with_index do |inner_number, inner_index| | |
| sum_nums = numbers[index..inner_index+1] | |
| unless sum_nums.empty? | |
| sum = sum_nums.inject(0) { |sum, x| sum += x } | |
| if best_sum.nil? || sum > best_sum | |
| best_sum = sum | |
| best_slice = sum_nums | |
| end | |
| end | |
| end | |
| end | |
| p "for #{numbers} the best slice is #{best_slice}" | |
| end | |
| max_slice([-1, 5, 4]) # => [5, 4] | |
| max_slice([-4]) # => [-4] | |
| max_slice([-5, -4, -7]) # => [-4] | |
| max_slice([1]) # => [1] | |
| max_slice([-5, 4, 5, -1, 10, -5]) # => [4, 5, -1, 10] |
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Given an array, find the slice of the array that results in the highest sum. This can be the entire array or just a slice/segment from it.