Data Types and Arrays in C++

A collection of elements of the same data type stored in contiguous memory locations. Arrays provide a way to store and access multiple values of the same type using a single name.

A sequence of characters treated as a single unit of data. Strings are used to represent text and are essential for handling textual information in programs.

Variables that store the memory address of other variables. Pointers allow direct manipulation of memory locations, offering powerful capabilities and flexibility in memory management.

A technique that allows programs to dynamically allocate memory during runtime. Dynamic memory allocation provides flexibility by enabling programs to adjust their memory usage based on their needs.

Data structures are specialized ways of organizing and storing data. They offer efficient mechanisms for managing large datasets, enabling efficient retrieval, manipulation, and processing of information.

A way to declare an array in C++ syntax. The syntax specifies the data type of the elements, the name of the array, and the number of elements it will hold.

The process of assigning initial values to array elements during declaration. Array initialization provides a way to set up the array with specific data values.

Accessing individual elements in an array using their numerical index. The index starts at 0 and goes up to 'size - 1' to access all elements in the array.

A data type that can hold sequences of characters. It's used to store text-like data like names, addresses, or messages.

The process of giving an initial value to a variable when it is declared. It can be done with a specific value or a list of values.

Arrays in programming are containers that hold multiple values of the same data type. They are ordered and each value has its own index.

A declaration statement defines a variable by specifying its data type, name, and optionally its initial value. For arrays, it also includes the size.

A multidimensional array has more than one dimension, allowing it to store elements in a tabular or grid-like structure. It can access elements using multiple indices.

A one-dimensional array stores elements in a single row. It can access values using a single index.

In a one-dimensional array, the data_type specifies the type of data each element can hold (e.g., integers, floating-point numbers, characters).

The size parameter in an array declaration defines the number of elements the array can hold. It must be a positive integer constant.

In 1-D arrays, it is optional to specify the size. If omitted, the compiler assigns the array size equal to the number of initializers.

When an array is initialized, the compiler automatically assigns 0 to any elements not explicitly initialized.

An array element's position within the array. The index is used to access individual elements.

The operator returns the number of bytes allocated for a particular data type, including arrays. Sizeof(array_name);

Copying an entire array from one to another cannot be done with a simple assignment. You need a loop to manipulate the elements one by one.

An array initialization where the size is declared as a constant using const int SIZE = 10.

When assigning values to array elements, direct assignment between arrays is not allowed. You need a loop for element-by-element copy.

To access a specific element you need to know the index. The index starts at 0 and goes up to 'size - 1' to access all elements in the array.

Double marks[ ] ={50, 90, 30, 100, 78, 68};

• Declare the array 'marks' as an array of doubles.
• Assign values to the array during declaration.

The size of an array is equal to the size of the data type multiplied by the total number of elements that can be stored in the array.

By adding 1 to each element's value and storing it back into the array.

Loop through the array, summing each element. The final sum is the total.

1. Iterate through the array from start to end.
2. For each element, check if it matches the target value.
3. If it matches, you've found the element. If you reach the end without a match, the element is not in the array.

1. Choose a starting point in the array.
2. Swap elements based on the desired order (e.g., swapping the first element with the last, then the second with the second-to-last, etc.).
3. Loop and swap until you reach the middle of the array.