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First solution in Clear category for Skew-symmetric Matrix by ylrih
def checkio(n):
rez = 0
for i in range(len(n)):
for j in range(len(n[i])):
if n[i][j] == - n[j][i]:
rez += 1
return rez == len(n) * len(n[i])
#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"
July 11, 2016
