#remove():Removes Element from the Set
#Syntax : set.remove(element)
student = {"Ram", 200, 205.04}
student.remove("Ram")
print(student)

# add():adds element to a set
student = {"Ram", 200, 205.04}
student.add("Krish")
print(student)

# copy():Returns Shallow Copy of a Set
numbers = {1, 2, 3, 4}
new_numbers = numbers.copy()
print(new_numbers)

# clear():remove all elements from a set
student = {"Ram", 200, 205.04}
student.clear()
print(student)

# difference():Returns Difference of Two Sets
marks1 = {100,102,500}
marks2 = {100,200,300,500}

print(marks1.difference(marks2))

print(marks2.difference(marks1))

#other way
print(marks1-marks2)
#
print(marks2-marks1)

# # intersection():Returns Intersection of Two or More Sets
A = {1, 2, 3, 4}
B = {5, 2, 1, 6, 4}
C = {2, 3, 5, 6, 4}
print(B.intersection(A))
print(B.intersection(C))
print(A.intersection(C))
print(C.intersection(A, B))

print(A & C)
print(A & B)


print(A & C & B)
print(A & B & C)

# intersection_update():Updates Calling Set With Intersection of Sets
data = [[1,2,3,4], [8,7,3,2], [9,2,6], [5,1,3]]

A = set(data[0])
print(A)
for currentSet in data[1:]:
    A.intersection_update(currentSet)
    print(A)
    
  
print("final result = ",A)

# difference_update():Updates Calling Set With Intersection of Sets
A = {'a', 'c', 'g', 'd'}
B = {'c', 'f', 'g'}
#
A.difference_update(B)
#
print('A = ', A)
print('B = ', B)

# discard():Removes an Element from The Set
numbers = {1, 2, 3, 4, 5, 6}

# Returns None
# Meaning, absence of a return value
print(numbers.discard(3))
print('numbers =', numbers)

# isdisjoint():Checks Disjoint Sets
A = {1, 2, 3,4}
B = {8, 5, 6}
C = {7,2, 8, 9}

print('Are A and B disjoint?', A.isdisjoint(B))
print('Are A and C disjoint?', A.isdisjoint(C))

# issubset():Checks if a Set is Subset of Another Set
A = {1, 2, 3, 4, 5, 6, 7}
B = {1,4,9}

# Returns True
print(B.issubset(A))

# pop():Removes an Arbitrary Element
A ={'a', 'b', 'c', 'd'}

print('Return Value is', A.pop())
print('A = ', A)

# symmetric_difference():Returns Symmetric Difference
A = {1, 2, 4, 6}
B = {3, 4, 5, 6,7}
C = {}

re = A.symmetric_difference(B)
print(re)
print(B.symmetric_difference(A))

print(A.symmetric_difference(C))
print(B.symmetric_difference(C))

# symmetric_difference_update():Updates Set With Symmetric Difference
A = {1, 2, 4, 6}
B = {3, 4, 5, 6,7}

result = A.symmetric_difference_update(B)

print('A = ', A)
print('B = ', B)
print('result = ', result)

# union():Returns Union of Sets
A = {'a', 'c', 'd'}
B = {'c', 'd', 2 }
C= {1, 2, 3}

print('A U B =', A.union(B))
print('B U C =', B.union(C))

print('A U B U C =', A.union(B, C))
# 
print('A.union() = ', A.union())

# # update()
A = {1, 2, 3, 4}
B = {5, 6, 3, 8}
# 
B.update(A)
print('A =',A)
print('B =',B)