swap two numbers using python

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Python Program to swap two numbers

program to swap two nos using third variable

a=int(input("enter first number"))
b=int(input("enter second number"))
print("before swap a=",a)
print("before swap b=",b)
temp=a
a=b
b=temp
print("after swap a=",a)
print("after swap b=",b)

Output: if input 10 , 20

first output a=10 b=20

second output after swap:a=20 b=10

program to swap two nos without using third variable

a=int(input("enter first number"))
b=int(input("enter second number"))
print("before swap a=",a)
print("before swap b=",b)
a=a+b
b=a-b
a=a-b
print("after swap a=",a)
print("after swap b=",b)

Output: if input 10 , 20

first output a=10 b=20

second output after swap:a=20 b=10

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Python Program to swap two numbers

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