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First solution in Clear category for Largest Rectangle in a Histogram by veghadam1991
def largest_histogram(histogram):
sum = 0
for i in range(min(histogram), max(histogram)+1):
sub_sum = 0
for n in histogram:
if n >= i: sub_sum += i
else: sub_sum = 0
if sub_sum > sum: sum = sub_sum
return sum
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!")
Nov. 6, 2016
