Arun is working on a program to swap the values of two variables, a and b, without using a temporary variable. Write a program to help Arun accomplish this task.Input format :The first line of input is an integer value a.The second line of input is an integer value b.Output format :The output prints the values of a and b after swapping. Refer to the sample output for the formatting specifications.
Question
Arun is working on a program to swap the values of two variables, a and b, without using a temporary variable. Write a program to help Arun accomplish this task.Input format :The first line of input is an integer value a.The second line of input is an integer value b.Output format :The output prints the values of a and b after swapping. Refer to the sample output for the formatting specifications.
Solution
Here is a Python program that accomplishes the task:
# Reading the input values
a = int(input())
b = int(input())
# Swapping the values
a = a + b
b = a - b
a = a - b
# Printing the swapped values
print("a =", a)
print("b =", b)
This program works by using the properties of addition and subtraction. First, it adds the values of a and b and stores the result in a. Then, it subtracts the new value of a (which is a + b) with b, which gives the original value of a, and stores this in b. Finally, it subtracts the new value of a (which is still a + b) with the new value of b (which is the original value of a), which gives the original value of b, and stores this in a. Thus, the values of a and b are swapped.
Similar Questions
Arun is working on a program to swap the values of two variables, a and b, without using a temporary variable. Write a program to help Arun accomplish this task.
Single File Programming QuestionProblem StatementRaja needs a program to swap values using only assignment operators. Write a program that takes two floating-point numbers a and b as input. Swap the values using only assignment operators and display them before and after the swap.Can you assist Raja in checking the correctness of his swapping program?Input format :The first line consists of a float value a, representing the first number.The second line consists of a float value b, representing the second number.Output format :The first line displays "Before swapping: " followed by the values before swapping, separated by a space with two decimal places.The second line displays "After swapping: " followed by the values after swapping, separated by a space with two decimal places.Refer to the sample output for the formatting specifications.Code constraints :In the given scenario, the test cases will fall under the following constraints:1.0 ≤ a, b ≤ 100.0Sample test cases :Input 1 :10.013.14Output 1 :Before swapping: 10.01 3.14After swapping: 3.14 10.01Input 2 :1.581.2Output 2 :Before swapping: 1.58 1.20After swapping: 1.20 1.58Input 3 :98.25100.0Output 3 :Before swapping: 98.25 100.00After swapping: 100.00 98.25Input 4 :45.2545.00Output 4 :Before swapping: 45.25 45.00After swapping: 45.00 45.25Note :The program will be evaluated only after the “Submit Code” is clicked.Extra spaces and new line characters in the program output will result in the failure of the test case.
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