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Banlı Üye
There are many ways in which we can do so but i want to ensure some specific and easy methods to perform such task
How to swap a variable without using a third Variable
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Seçkin Üye
Which variable is it
Onaylı Üye
#include <iostream>
int main() {
int a = 5;
int b = 10;
std::cout << "Before swapping: a = " << a << ", b = " << b << std::endl;
a = a ^ b; // a now becomes 15 (0101 ^ 1010 = 1111)
b = a ^ b; // b now becomes 5 (1111 ^ 1010 = 0101)
a = a ^ b; // a now becomes 10 (1111 ^ 0101 = 1010)
std::cout << "After swapping: a = " << a << ", b = " << b << std::endl;
return 0;
}
int main() {
int a = 5;
int b = 10;
std::cout << "Before swapping: a = " << a << ", b = " << b << std::endl;
a = a ^ b; // a now becomes 15 (0101 ^ 1010 = 1111)
b = a ^ b; // b now becomes 5 (1111 ^ 1010 = 0101)
a = a ^ b; // a now becomes 10 (1111 ^ 0101 = 1010)
std::cout << "After swapping: a = " << a << ", b = " << b << std::endl;
return 0;
}
Onaylı Üye
no it is so simple, with practice, it becomes easier. Understanding the arithmetic and bitwise methods helps simplify the process.
for example in my previous answer Using Bitwise XOR, ( 0 XOR 0 = 0, 0 XOR 1 = 1, 1 XOR 0 = 1, 1 XOR 1 = 0 )
Üye
I will try it
Onaylı Üye
Which one
Onaylı Üye
The method you choose depends on the data type of your variables. For integers or floats, the arithmetic method is quite simple, For other data types, using a temporary variable might be the easiest solution
Üye
Sorry i dont know
by using a temp variable
Onaylı Üye
In Python, you can swap variables without a third variable using tuple unpacking. For instance, if a = 5 and b = 10, a, b = b, a swaps their values. Another method involves arithmetic operations: a = a + b, b = a - b, a = a - b. Bitwise XOR can also be used for integers: a = a ^ b, b = a ^ b, a = a ^ b. These methods utilize Python’s dynamic typing and ability to handle different data types seamlessly. Choose the method that suits your coding style and performance requirements.
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