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Second solution in Clear category for The Angles of a Triangle by ultrajack
from math import acos, degrees
def checkio(*tri):
tri=sorted(tri)
if sum(tri[:2]) <= tri[-1] or len(tri) != 3: return [0, 0, 0]
return sorted([round(degrees(acos((b*b + c*c - a*a)/(2*b*c)))) for a,b,c in [tri[i:]+tri[:i] for i in range(3)]])
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio(4, 4, 4) == [60, 60, 60], "All sides are equal"
assert checkio(3, 4, 5) == [37, 53, 90], "Egyptian triangle"
assert checkio(2, 2, 5) == [0, 0, 0], "It's can not be a triangle"
March 4, 2014
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