Created
August 9, 2012 16:13
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data = %w/ | |
75 | |
95 64 | |
17 47 82 | |
18 35 87 10 | |
20 04 82 47 65 | |
19 01 23 75 03 34 | |
88 02 77 73 07 63 67 | |
99 65 04 28 06 16 70 92 | |
41 41 26 56 83 40 80 70 33 | |
41 48 72 33 47 32 37 16 94 29 | |
53 71 44 65 25 43 91 52 97 51 14 | |
70 11 33 28 77 73 17 78 39 68 17 57 | |
91 71 52 38 17 14 91 43 58 50 27 29 48 | |
63 66 04 68 89 53 67 30 73 16 69 87 40 31 | |
04 62 98 27 23 09 70 98 73 93 38 53 60 04 23/ | |
nums = data.map{|c| c.to_i} | |
def sums_for_each_route(nums, pos=0, depth=1, sums=[0]) | |
sums[-1] += nums[pos] | |
nums.length <= (pos + depth) and return sums | |
cur = sums[-1] | |
sums_for_each_route(nums, pos + depth, depth + 1, sums) | |
sums.push(cur) | |
sums_for_each_route(nums, pos + depth + 1, depth + 1, sums) | |
end | |
puts sums_for_each_route(nums).max | |
# 1074 |
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