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First solution in Clear category for Largest Rectangle in a Histogram by bravebug
def largest_histogram(histogram):
res = []
his_len = len(histogram)
for n in range(his_len, 0, -1):
for k in range(his_len, n-1, -1):
res.append(min(histogram[n-1:k])*(k-n+1))
return max(res)
if __name__ == "__main__":
#These "asserts" using only for self-checking and not necessary for auto-testing
assert largest_histogram([5]) == 5, "one is always the biggest"
assert largest_histogram([5, 3]) == 6, "two are smallest X 2"
assert largest_histogram([1, 1, 4, 1]) == 4, "vertical"
assert largest_histogram([1, 1, 3, 1]) == 4, "horizontal"
assert largest_histogram([2, 1, 4, 5, 1, 3, 3]) == 8, "complex"
print("Done! Go check it!")
March 27, 2020
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