Easy lifehacks

# What is the logic to swap two numbers?

## What is the logic to swap two numbers?

Example 1: Program to swap numbers using a temp variable Assigning the value of num1 (this contains the first number) to the temp variable to create the backup of first number. 2. Assigning the value of second variable(this contains the second number) to the variable num1.

How do you swap two elements?

C Program to Swap two Numbers

1. Assign x to a temp variable : temp = x.
2. Assign y to x : x = y.
3. Assign temp to y : y = temp.

How can I swap two numbers without temperature?

Let’s see a simple c example to swap two numbers without using 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)

### How do you swap two numbers in a single statement?

First Method:

1. int x = 10;
2. int y = 20;
3. y = (x + y) – (x = y);
4. Console. WriteLine(“X = ” + x + “; Y = ” + y);

How do you swap two numbers in an array?

C Program

1. #include
2. int main()
3. {
4. int x, y, t;// x and y are the swapping variables and t is another variable.
5. printf(“Enter the value of X and Y\n”);
6. scanf(“%d%d”, &x, &y);
7. printf(“before swapping numbers: %d %d\n”,x,y);
8. /*swapping*/

How do you swap 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 elements in an ArrayList?

In order to swap elements of ArrayList with Java collections, we need to use the Collections. swap() method. It swaps the elements at the specified positions in the list.

How can I check my swap status?

The procedure to check swap space usage and size in Linux is as follows:

1. Open a terminal application.
2. To see swap size in Linux, type the command: swapon -s .
3. You can also refer to the /proc/swaps file to see swap areas in use on Linux.
4. Type free -m to see both your ram and your swap space usage in Linux.

How do you swap in C programming?

Swap Numbers Using Temporary Variable In the above program, the temp variable is assigned the value of the first variable. Then, the value of the first variable is assigned to the second variable. Finally, the temp (which holds the initial value of first ) is assigned to second . This completes the swapping process.

## How do you switch variables in one line?

C program to swap two variables in single line

1. #include
2. void main()
3. {
4. int a = 5;
5. int b = 10;
6. (a ^= b), (b ^= a), (a ^= b);
7. printf(“Swapped values of a and b are %d %d”,a, b);
8. }

How do you swap values between two variables in a single line Python?

In short, the expression: “ a, b = b, a”, first right gets assigned to first left and second right get assigned to second left at the same time therefore swap values of a and b.

How do you swap numbers in an array in C++?

The C++ function std::array::swaps() swap contents of the array. This method takes other array as parameter and exchage contents of the both arrays in linear fashion by performing swap operation on induvisual element of array.

### When do you need to do a ” swap “?

A “SWAP” is when you want to transplant an engine into a vehicle that did not originally come with this type of engine. Generally if your vehicle is pre 1998 than you will be in the “Swap” category and I sell engines for this. Although if your location requires SMOG than I don’t, sorry.

Can you replace a 4.8l engine with a 6.0L?

If you want to replace your 4.8 with a 6.0L and a cam you are still in the “Replacement” category as you do NOT need a complete engine. I do not sell incomplete engines as all you need is a long-block engine as seen here.

Do you need a VIN number for a 4.3L V8?

The 4.3L to V8 “replacement” is bit unique but offers its own set of challenges to be SMOG legal and legit. Your VIN number is embedded in the ECM and needs to be retained. Your VIN number also indicates what engine the vehicle is equipped with. So you need to essential run the new V8 on your existing computer and be retuned.

Ruth Doyle