Users' questions

What is swapping of two numbers in Python?

by Rhyley Bryan

What is swapping of two numbers in Python?

The bitwise XOR operator can be used to swap two variables. The XOR of two numbers x and y returns a number which has all the bits as 1 wherever bits of x and y differ. For example XOR of 10 (In Binary 1010) and 5 (In Binary 0101) is 1111 and XOR of 7 (0111) and 5 (0101) is (0010).

How do you swap two values in Python?

To swap values of variables, write as follows:

  1. a = 1 b = 2 a, b = b, a print(‘a = ‘, a) print(‘b = ‘, b) # a = 2 # b = 1.
  2. a, b = 100, 200 print(‘a = ‘, a) print(‘b = ‘, b) # a = 100 # b = 200.

How we can swap the two numbers in main function?

C Program to Swap two Numbers

  • Assign x to a temp variable : temp = x.
  • Assign y to x : x = y.
  • Assign temp to y : y = temp.

How do you swap two numbers?

Let’s see another example to swap two numbers using * and /.

  1. #include
  2. #include
  3. int main()
  4. {
  5. int a=10, b=20;
  6. printf(“Before swap a=%d b=%d”,a,b);
  7. a=a*b;//a=200 (10*20)
  8. b=a/b;//b=10 (200/20)

How do you swap two numbers in a list in Python?

Swap elements by value in a list

  1. a_list = [“a”, “b”, “c”]
  2. index1 = a_list. index(“a”)
  3. index2 = a_list. index(“c”)
  4. a_list[index1], a_list[index2] = a_list[index2], a_list[index1]
  5. print(a_list)

How do you swap values in two variables?

The bitwise XOR operator can be used to swap two variables. The XOR of two numbers x and y returns a number that has all the bits as 1 wherever bits of x and y differ. For example, XOR of 10 (In Binary 1010) and 5 (In Binary 0101) is 1111 and XOR of 7 (0111) and 5 (0101) is (0010).

How do you swap three numbers in Python?

In this program, we have taken the input from the user. The user has to provide three inputs that will be assigned the three variables x, y, and z. The values will be later used to get swapped among the variables. In the swapping logic, first, the value of x has been temporarily stored in the variable named temp_var.

How do you swap two numbers in an array?

Java Program

  1. import java.util.*;
  2. class Swap_With {
  3. public static void main(String[] args) {
  4. int x, y, t;// x and y are to swap.
  5. Scanner sc = new Scanner(System.in);
  6. System.out.println(“Enter the value of X and Y”);
  7. x = sc.nextInt();
  8. y = sc.nextInt();

How do you swap a number?

C Program to swap two numbers without third variable

  1. #include
  2. int main()
  3. {
  4. int a=10, b=20;
  5. printf(“Before swap a=%d b=%d”,a,b);
  6. a=a+b;//a=30 (10+20)
  7. b=a-b;//b=10 (30-20)
  8. a=a-b;//a=20 (30-10)

What is meant by swapping of two numbers?

Swapping two number in C programming language means exchanging the values of two variables. Suppose you have two variable var1 & var2. Value of var1 is 20 & value of var2 is 40. So, after swapping the value of var1 will become 40 & value of var 2 will become 20.

How do you swap two numbers in Python without using third variable?

Program to swap two numbers without using the third variable

  1. STEP 1: START.
  2. STEP 2: ENTER x, y.
  3. STEP 3: PRINT x, y.
  4. STEP 4: x = x + y.
  5. STEP 5: y= x – y.
  6. STEP 6: x =x – y.
  7. STEP 7: PRINT x, y.
  8. STEP 8: END.


https://www.youtube.com/watch?v=NyeQXuonDek