main.py

@@ -47,7 +47,11 @@ class Poly:
                 else:
                     elements[degree] += coefficient % self.int_mod
 
-        return Poly(self.int_mod, list(reversed(list(elements.values()))))
+        els = {}
+        for i in reversed(range(len(elements))):
+            els[f"x{i}"] = elements[f"x{i}"]
+
+        return Poly(self.int_mod, list(reversed(list(els.values()))))
 
     def __mod__(self, other):
         elements = {}
@@ -98,22 +102,34 @@ class Poly:
 
     def __truediv__(self, other):
 
-        if self.int_mod != other.int_mod:
-            raise Exception("Different modulo")
+        assert self.int_mod == other.int_mod
 
         if other.is_empty():
             raise ZeroDivisionError("Polynomial is empty")
 
-        fdeg = len(self.elements) - 1
+        poly = Poly(self.int_mod, list(reversed(list(self.elements.values()))))
+        fdeg = len(poly.elements) - 1
         sdeg = len(other.elements) - 1
 
-        while not other.is_empty():
-            coefficient = self.elements[f"x{fdeg}"] / other.elements[f"x{sdeg}"]
-            coefficient %= self.int_mod
+        while fdeg >= sdeg:
+            coefficient = poly.elements[f"x{fdeg}"] / other.elements[f"x{sdeg}"]
+            coefficient %= poly.int_mod
             degree = fdeg - sdeg
 
-            # print(self.elements["x2"])
-            # break
+            divpoly = [0 for x in range(degree + 1)]
+            divpoly[degree] = coefficient
+            divpoly = Poly(poly.int_mod, divpoly)
+
+            mulpoly = divpoly * other
+
+            poly -= mulpoly
+
+            for i in poly.elements.keys():
+                if poly.elements[f"{i}"] != 0:
+                    fdeg = int(i[1:])
+                    break
+
+        return poly
 
     def is_empty(self):
 
@@ -147,7 +163,13 @@ class PolyIntField:
 
 
 if __name__ == "__main__":
-    p = Poly(5, [-4, 0, -2, 1])
+
+    a = Poly(10, [-4, 0, -2, 1])
+    b = Poly(10, [-3, 1])
+    c = a/b
+    print(c)
+    # print(a - Poly(10, [0, 0, -3, 1]))
+    # p = Poly(5, [-4, 0, -2, 1])
     # print(p)
     # c = p * p
     # print(c.elements)
@@ -158,29 +180,23 @@ if __name__ == "__main__":
     # print(d)
     # print(p)
     # print(p + d)
-    d = Poly(5, [-3, 1])
-    g = Poly(5, [1, 2, 1])
-    print(d)
-    print(g)
-    print()
-
+    # d = Poly(5, [-3, 1])
+    # g = Poly(5, [1, 2, 1])
+    # print(d)
+    # print(g)
+    # print()
+    #
+    # # print(g)
+    # print(g - d)
+    # print(d - g)
+    #
     # print()
-    # print(g ** 2)
-    # print(d)
-    # print(g)
-    # # c = d * g
-    # print(g * d)
-    # print(d * g)
-    # print(g + d)
     # print(d + g)
-    # print(d)
-    # print(g)
-    print(g - d)
-    print(d - g)
-
-    print()
-    print(d + g)
-    print(g + d)
+    # print(g + d)
+    #
+    # print()
+    # print(d * g)
+    # print(g * d)
     # print(d)
     # print(g)
     # print(g - d)