Imran P. isbo
isbo
/ gist:7239007
Created
October 30, 2013 19:47
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| def fill(heights): | |
| prev = total = 0 | |
| for i, h in enumerate(heights): | |
| f = min(max(heights[i:]), prev) | |
| if f > h: | |
| total += (f - h) | |
| prev = max(prev, h) | |
| return total |