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clear solution in Clear category for Number Base by wyf.141060
def checkio(str_number: str, radix: int) -> int:
int_number = [ord(c)-55 if c.isupper() else int(c) for c in str_number]
return sum([num*radix**index for index, num in enumerate(int_number[::-1])]) if max(int_number) < radix else -1
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
assert checkio("AF", 16) == 175, "Hex"
assert checkio("101", 2) == 5, "Bin"
assert checkio("101", 5) == 26, "5 base"
assert checkio("Z", 36) == 35, "Z base"
assert checkio("AB", 10) == -1, "B > A = 10"
print("Coding complete? Click 'Check' to review your tests and earn cool rewards!")
Nov. 8, 2018