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First solution in Clear category for Stair Steps by eugene100372
def checkio(numbers):
s1=s2=0
for el in numbers:
buf=s2
s2=max(s2,s1)+el
s1=buf
return max(s1,s2)
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio([5, -3, -1, 2]) == 6, 'Fifth'
assert checkio([5, 6, -10, -7, 4]) == 8, 'First'
assert checkio([-11, 69, 77, -51, 23, 67, 35, 27, -25, 95]) == 393, 'Second'
assert checkio([-21, -23, -69, -67, 1, 41, 97, 49, 27]) == 125, 'Third'
print('All ok')
Dec. 11, 2018
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