Enable Javascript in your browser and then refresh this page, for a much enhanced experience.
First solution in Clear category for Skew-symmetric Matrix by KoutoAsari
def checkio(matrix):
for col, row in zip(zip(*matrix), matrix):
for c, r in zip(col, row):
if c + r != 0: return False
else: return True
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio([
[0, 1, 2],
[-1, 0, 1],
[-2, -1, 0]]) == True, "1st example"
assert checkio([
[0, 1, 2],
[-1, 1, 1],
[-2, -1, 0]]) == False, "2nd example"
assert checkio([
[0, 1, 2],
[-1, 0, 1],
[-3, -1, 0]]) == False, "3rd example"
Nov. 11, 2014
