Ruby program to swap two numbers using the Bitwise XOR (^) operator

num1=5
num2=3

print "Number before swapping:\n"
print "num1: ",num1,"\n"
print "num2: ",num2,"\n"

num1 = num1 ^ num2
num2 = num1 ^ num2
num1 = num1 ^ num2

print "\nNumber after swapping:\n"
print "num1: ",num1,"\n"
print "num2: ",num2,"\n"

Output:

Number before swapping:
num1: 5
num2: 3

Number after swapping:
num1: 3
num2: 5