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How to use fraction_to_decimal method in hypothesis

Best Python code snippet using hypothesis

0166_fraction-to-recurring-decimal.py

Source:0166_fraction-to-recurring-decimal.py

...22 - æå°æ°ç¹çè¯ï¼æ¯å¦åå¨å¾ªç¯23"""24import unittest25class OfficialSolution:26    def fraction_to_decimal(self, numerator: int, denominator: int) -> str:27        # ç¹æ®æåµã28        if numerator == 0:29            return '0'30        # åå¨æ£è´å·ãæ´æ°é¨åãå°æ°ç¹ãå°æ°é¨åï¼ç¨äºæåè¿åæ¼æ¥åçåç¬¦ä¸²ã31        res = []32        # è¥ä¸º fasleï¼è¯´æç»ææ¯è´æ°ï¼å¦åï¼ç»æä¸ºæ£æ°ã33        if (numerator > 0) ^ (denominator > 0):34            res.append('-')35        # åæ£æ°ã36        numerator = abs(numerator)37        denominator = abs(denominator)38        # æ·»å æ´æ°é¨åã39        res.append(str(numerator // denominator))40        # è¥ä½æ°ä¸º 0ï¼è¯´ææ²¡æå°æ°ç¹åå°æ°ï¼ç´æ¥è¿åç»æã41        remainder = numerator % denominator42        if remainder == 0:43            return ''.join(res)44        # æ·»å å°æ°ç¹ã45        res.append('.')46        # è®°å½ä½æ°åä½ç½®ï¼ç¨äºéå°å¾ªç¯æ¶æå¥æ¬å·ã47        d = {}48        # ä½æ°ä¸ä¸ºé¶ï¼è¯´æå¯ä»¥ç»§ç»é¤ã49        while remainder != 0:50            # åå¨å·²ç»åºç°è¿çä½æ°ï¼è¯´æåå¨å¾ªç¯ã51            if remainder in d:52                # å¨ä¹ååºç°çä½ç½®æå¥æ¬å·ã53                res.insert(d[remainder], '(')54                res.append(')')55                break56            # è®°å½ä½æ°åä½ç½®ã57            d[remainder] = len(res)58            # ä½æ°å  0ï¼ç»§ç»é¤ã59            remainder *= 1060            # æ·»å å°æ°ã61            res.append(str(remainder // denominator))62            # æ´æ°ä½æ°ã63            remainder = remainder % denominator64        return ''.join(res)65class TestOfficialSolution(unittest.TestCase):66    def setUp(self) -> None:67        self.s = OfficialSolution()68    def test_fraction_to_decimal(self) -> None:69        self.assertEqual(70            self.s.fraction_to_decimal(1, 2),71            '0.5',72        )73        self.assertEqual(74            self.s.fraction_to_decimal(2, 1),75            '2',76        )77        self.assertEqual(78            self.s.fraction_to_decimal(2, 3),79            '0.(6)',80        )81        self.assertEqual(82            self.s.fraction_to_decimal(-2147483648, -1),83            '2147483648',84        )85        self.assertEqual(86            self.s.fraction_to_decimal(-50, 8),87            '-6.25',88        )89if __name__ == '__main__':...

166.py

Source:166.py

...24Python versions). When we find a repetition of both the previous remainder and the number of tens, we stop dividing as25we have entered a cycle and thus found the repeating part of the decimal.26Then we just have to iterate over the division results, appending digits and brackets to the result str as necessary.27"""28def fraction_to_decimal(numerator, denominator):29    if not numerator:30        return '0'31    result = '-' if (numerator < 0) != (denominator < 0) else ''32    numerator, denominator = abs(numerator), abs(denominator)33    quotient, remainder = divmod(numerator, denominator)34    result += str(quotient)35    if not remainder:36        return result37    result += '.'38    divisions = {}39    repeating = None40    while remainder:41        tens = -142        while remainder < denominator:43            remainder *= 1044            tens += 145        quotient, new_remainder = divmod(remainder, denominator)46        if (remainder, tens) in divisions:47            repeating = (remainder, tens)48            break49        divisions[remainder, tens] = quotient50        remainder = new_remainder51    for (remainder, tens), quotient in divisions.items():52        if (remainder, tens) == repeating:53            result += '('54        result += ('0' * tens) + str(quotient)55    if repeating:56        result += ')'57    return result58assert fraction_to_decimal(1, 2) == '0.5'59assert fraction_to_decimal(2, 1) == '2'60assert fraction_to_decimal(2, 3) == '0.(6)'61assert fraction_to_decimal(4, 333) == '0.(012)'62assert fraction_to_decimal(1, 5) == '0.2'63assert fraction_to_decimal(1, 7) == '0.(142857)'64assert fraction_to_decimal(10, 7) == '1.(428571)'65assert fraction_to_decimal(1, 90) == '0.01(1)'66assert fraction_to_decimal(1, 99) == '0.(01)'67assert fraction_to_decimal(-50, 8) == '-6.25'68assert fraction_to_decimal(0, -5) == '0'69assert fraction_to_decimal(1, 29) == '0.(0344827586206896551724137931)'...

166_fractionToRecurringDecimal.py

Source:166_fractionToRecurringDecimal.py

...7    Given numerator = 1, denominator = 2, return "0.5".8    Given numerator = 2, denominator = 1, return "2".9    Given numerator = 2, denominator = 3, return "0.(6)".10"""11def fraction_to_decimal(numerator, denominator):12    n = numerator13    d = denominator14    sign = '-' if n * d < 0 else ''15    n = abs(n)16    d = abs(d)17    res = []18    res.append(sign)19    res.append(str(n / d))20    r = n % d   # remainder21    if not r:22        return ''.join(res)23    24    res.append('.')25    seen = {}26    while not r in seen:27        seen[r] = len(res)28        res.append(str(10 * r / d))29        r = 10 * r % d30    idx = seen[r]31    res.insert(idx, '(')32    res.append(')')33    return ''.join(res).replace('(0)', '')34#print fraction_to_decimal(1, 2)35#print fraction_to_decimal(2, 3)36print fraction_to_decimal(1, 19)37def fractionToDecimal(self, numerator, denominator):38    n = numerator39    d = denominator40    if n % d == 0:41        return str(n//d)42    # Deal with negatives43    if (abs(n)/n) * (abs(d)/d) < 0:44        res = '-'45        n = abs(n)46        d = abs(d)47    else:48        res = ''49    # Integer part50    res = res + str(n//d) + '.'51    n = n % d52    # Start point of the "list"53    frem = n54    srem = n55    firstTime = True56    while frem != 0 and not (firstTime == False and frem == srem):57        firstTime = False58        srem = (srem * 10) % d59        frem = (frem * 10) % d60        if frem:61            frem = (frem * 10) % d62    # The fast pointer encounters a remainder of 0, so no cycle in the "list"63    if frem == 0:64        res += str((n * 10) // d)65        rem = (n * 10) % d66        while rem:67            res += str((rem * 10) // d)68            rem = (rem * 10) % d69        return res70    else:71        # Find the start point of the cycle, meanwhile, generate the non recurring part72        srem = n73        while frem != srem:74            res += str((srem * 10) // d)75            srem = (srem * 10) % d76            frem = (frem * 10) % d77        res += '('78        # Generate the recurring part79        firstTime = True80        while not (firstTime == False and srem == frem):81            firstTime = False82            res += str((srem * 10) // d)83            srem = (srem * 10) % d84        res += ')'85        return res86#def fraction_to_decimal(numerator, denominator):87#    sign = '-' if numerator * denominator < 0 else ''88#    numerator = abs(numerator)89#    denominator = abs(denominator)90#    if numerator == 0:91#        return '0'92#    elif numerator == denominator:93#        return '1'94#    elif numerator > denominator:95#        return sign + str(numerator / denominator) + fraction_to_decimal(numerator % denominator)96#    else:97#        d = 298#        while d <= min(int(numerator ** 0.5), int(denominator ** 0.5)):99#            if numerator % d == denominator % d == 0:100#                numerator /= d101#                denominator /= d102#        if is_prime(denominator):103#            pass104#        else:105#            return str(numerator / denominator)[1:]106#def is_prime(n):107#    if n==2 or n==3: return True108#    if n%2==0 or n<2: return False109#    for i in range(3,int(n**0.5)+1,2):   # only odd numbers...

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