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Number Base solution in Clear category for Number Base by Druggist
def char_to_int(char):
return ord(char) - 55
def checkio(str_number, radix):
number = 0
for i in range(len(str_number), 0, -1):
if str_number[len(str_number) - i].isdigit():
if int(str_number[len(str_number) - i]) >= radix:
return -1
number += radix**(i-1) * int(str_number[len(str_number) - i])
else:
if char_to_int(str_number[len(str_number) - i]) >= radix:
return -1
number += radix**(i-1) * char_to_int(str_number[len(str_number) - i])
return number
#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"
Nov. 26, 2016
