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integer to assyrian numeral
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def int_to_aii_numeral(num): | |
# greedy approach similar to https://leetcode.com/problems/integer-to-roman/description/ | |
# time O(1) | |
# space O(1) | |
# based on the numerals here: https://en.wiktionary.org/wiki/Module:number_list/data/aii | |
numerals = [ | |
(1000, 'ܐ݇'), | |
(900, 'ܨ̈'), (800, 'ܦ̈'), (700, 'ܥ̈'), (600, 'ܣ̈'), (500, 'ܢ̈'), (400, 'ܬ'), | |
(300, 'ܫ'), (200, 'ܪ'), (100, 'ܩ'), (90, 'ܨ'), (80, 'ܦ'), (70, 'ܥ'), (60, 'ܣ'), | |
(50, 'ܢ'), (40, 'ܡ'), (30, 'ܠ'), (20, 'ܟ'), (10, 'ܝ'), (9, 'ܛ'), (8, 'ܚ'), (7, 'ܙ'), | |
(6, 'ܘ'), (5, 'ܗ'), (4, 'ܕ'), (3, 'ܓ'), (2, 'ܒ'), (1, 'ܐ'), (0, ''), | |
] | |
aii_numerals = [] | |
for val, numeral in numerals: | |
if num == 0: | |
break | |
is_divisible, num = divmod(num, val) # reassign quotient and remainder | |
if is_divisible: | |
aii_numerals.append(numeral) | |
return ''.join(aii_numerals) + '.' | |
assert int_to_aii_numeral(0) == '.' | |
assert int_to_aii_numeral(1) == 'ܐ.' | |
assert int_to_aii_numeral(9) == 'ܛ.' | |
assert int_to_aii_numeral(10) == 'ܝ.' | |
assert int_to_aii_numeral(11) == 'ܝܐ.' | |
assert int_to_aii_numeral(77) == 'ܥܙ.' | |
assert int_to_aii_numeral(90) == 'ܨ.' | |
assert int_to_aii_numeral(99) == 'ܨܛ.' | |
assert int_to_aii_numeral(1999) == 'ܐ݇ܨ̈ܨܛ.' |
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