How do I merge two queues in Python?

How do I merge two queues in Python?

While both queues aren't empty, dequeue an item from A and enqueue it to newQ. Then dequeue an item off of queue B. If either of the queues (A or B) are empty, dequeue the rest of the other queue and enqueue each element onto newQ.

What is concatenation in computing?

In formal language theory and computer programming, string concatenation is the operation of joining character strings end-to-end. For example, the concatenation of "snow" and "ball" is "snowball".

Which character is used for concatenation of string?

ampersand symbol

Can we do string concatenation using interpolation?

Strings are immutable. ... When you concatenate strings with a + sign, you end up creating multiple strings to get to the final string. When you use the interpolation method (or StringBuilder), the . NET runtime optimizes your string use, so it (in theory) has better memory usage.

Is string function in Python?

Python has a set of built-in methods that you can use on strings. Note: All string methods returns new values. They do not change the original string....Python String Methods.
MethodDescription
isalnum()Returns True if all characters in the string are alphanumeric
isalpha()Returns True if all characters in the string are in the alphabet

What is a string Python 3?

Working with Strings in Python 3 A string is a sequence of one or more characters (letters, numbers, symbols) that can be either a constant or a variable. Made up of Unicode, strings are immutable sequences, meaning they are unchanging.

How do you return a float in Python?

float() in Python The float() method is used to return a floating point number from a number or a string. The method only accepts one parameter and that is also optional to use.

Is there double in Python?

We can convert integers to floating point numbers in python using the float and double functions. ... There are no such differences in python, but note that float is built in to python, while double comes from numpy, and hence is slightly different.

What is the difference between a double and a float?

What's the difference ? double has 2x more precision then float. float is a 32 bit IEEE 754 single precision Floating Point Number1 bit for the sign, (8 bits for the exponent, and 23* for the value), i.e. float has 7 decimal digits of precision.

How many types of data types are there?

Data types are divided into two groups:

  • Primitive data types - includes byte , short , int , long , float , double , boolean and char.
  • Non-primitive data types - such as String, Arrays and Classes (you will learn more about these in a later chapter)

Why data types are important?

Data types are especially important in Java because it is a strongly typed language. This means that all operations are type-checked by the compiler for type compatibility. Thus, strong type checking helps prevent errors and enhances reliability. ...

What are data types How are they important?

What are data types ? A data type is an attribute of data which tells the compiler or interpreter how the data is intended to be used. ... They are important because each programming language needs to work on different types of data like integers and strings and so they are stored as that data type.