Rozwiązanie zadania "Ilorazy pierścienia wielomianów" #35
111
main.py
111
main.py
@ -7,8 +7,16 @@ class Poly:
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self.elements = {}
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self.int_mod = int_mod
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elements = list(reversed(elements))
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z = 0
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for i in elements:
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if i != 0:
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break
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z += 1
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elements = elements[z:]
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i = len(elements) - 1
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for e in reversed(elements):
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for e in elements:
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self.elements[f"x{i}"] = e % self.int_mod
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i -= 1
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@ -53,9 +61,6 @@ class Poly:
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return Poly(self.int_mod, list(reversed(list(els.values()))))
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def __mod__(self, other):
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elements = {}
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def __pow__(self, power, modulo=None):
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poly = Poly(self.int_mod, list(reversed(list(self.elements.values()))))
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@ -110,10 +115,20 @@ class Poly:
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poly = Poly(self.int_mod, list(reversed(list(self.elements.values()))))
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fdeg = len(poly.elements) - 1
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sdeg = len(other.elements) - 1
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# print(poly)
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# print(poly.elements)
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# print(fdeg)
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# print(sdeg)
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while fdeg >= sdeg:
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coefficient = poly.elements[f"x{fdeg}"] / other.elements[f"x{sdeg}"]
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coefficient %= poly.int_mod
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# coefficient = poly.elements[f"x{fdeg}"] / other.elements[f"x{sdeg}"]
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# coefficient %= poly.int_mod
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# coefficient = 0
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coefficient = other.elements[f"x{sdeg}"]
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for i in range(1, poly.int_mod):
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if (coefficient * i) % poly.int_mod == poly.elements[f"x{fdeg}"]:
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coefficient = i
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break
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degree = fdeg - sdeg
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divpoly = [0 for x in range(degree + 1)]
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@ -121,9 +136,9 @@ class Poly:
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divpoly = Poly(poly.int_mod, divpoly)
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mulpoly = divpoly * other
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# print(poly)
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poly -= mulpoly
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# print(poly)
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for i in poly.elements.keys():
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if poly.elements[f"{i}"] != 0:
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fdeg = int(i[1:])
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@ -131,6 +146,53 @@ class Poly:
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return poly
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def __mod__(self, other):
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dividened = Poly(self.int_mod,
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list(reversed(list(self.elements.values()))))
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divisor = Poly(self.int_mod,
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list(reversed(list(other.elements.values()))))
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div_result = dividened / divisor
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els = []
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for e in div_result.elements.keys():
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if div_result.elements[e] != 0:
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els.append(div_result.elements[e])
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div_result = Poly(self.int_mod, list(reversed(list(els))))
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# #
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# # print(dividened)
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# # print(divisor)
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# # print(div_result)
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# #
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# print(div_result.elements)
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# dividened = Poly(dividened.int_mod,
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# list(reversed(list(divisor.elements.values()))))
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# divisor = Poly(divisor.int_mod,
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# list(reversed(list(div_result.elements.values()))))
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# print(dividened)
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# print(divisor)
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# div_result = dividened / divisor
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#
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# print()
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# print(dividened)
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# print(divisor)
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# print(div_result)
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# print()
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# while True:
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# dividened = Poly(dividened.int_mod,
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# list(reversed(list(divisor.elements.values()))))
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# divisor = Poly(divisor.int_mod,
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# list(reversed(list(div_result.elements.values()))))
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# div_result = dividened / divisor
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#
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# if div_result.is_empty():
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# break
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# print(div_result)
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return div_result
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def is_empty(self):
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for e in self.elements:
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@ -161,13 +223,34 @@ class PolyIntField:
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# for element in self.elements:
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if __name__ == "__main__":
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# a = Poly(5, [1, 0, 4, 0, 2, 1, 0, 0])
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# # print(a)
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# b = Poly(5, [4, 0, 0, 0, 1])
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# # print(b)
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# # print(a + b)
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# print(a % b)
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a = Poly(10, [-4, 0, -2, 1])
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b = Poly(10, [-3, 1])
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c = a/b
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print(c)
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# d = Poly(5, [3, 1, 4])
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# # print(d)
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# e = Poly(5, [4, 0, 0, 0, 1])
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# # print(e)
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# print(e / d)
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# c = Poly(5, [4, 0, 0, 0, 1])
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# d = Poly(5, [3, 1, 4, 0, 0, 0])
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# print(c)
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# print(d)
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# print(c % d)
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# e = Poly(10, [-4, 0, -2, 1])
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# f = Poly(10, [-3, 1])
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# print(e / f)
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# print((a % b).elements)
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# d = Poly(10, [2, 0, 6, 0, 1])
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# e = Poly(10, [5, 0, 1])
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# print(d / e)
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# print(a - Poly(10, [0, 0, -3, 1]))
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# p = Poly(5, [-4, 0, -2, 1])
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# print(p)
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