![Declaring and Initializing Arrays
Syntax
data_type array_name[size];
Examples
int numbers[5]; /* Declaration */
int numbers[5] = {10, 20, 30, 40, 50}; /* Initialization */](https://image.slidesharecdn.com/arrays-from-basics-to-advancedfinal-250105162248-4796559f/85/Arrays-from-Basics-to-Advanced-final-pptx-4-320.jpg)
![Declaring and Initializing Arrays
Syntax:
data_type array_name[size];
Examples:
Declaration:
int numbers[5];
Initialization:
int numbers[5] = {10, 20, 30, 40, 50};
Partial Initialization:
int numbers[5] = {10, 20}; // Remaining elements are initialized to 0](https://image.slidesharecdn.com/arrays-from-basics-to-advancedfinal-250105162248-4796559f/85/Arrays-from-Basics-to-Advanced-final-pptx-5-320.jpg)
![Accessing Array Elements
int numbers[5] = {10, 20, 30, 40, 50};
Using Index: Array indexing starts from 0.
printf("%d", numbers[2]); // Outputs 30
Example Program:
#include <stdio.h>
int main()
{
int numbers[5] = {10, 20, 30, 40, 50};
for (int i = 0; i < 5; i++)
{
printf("Element at index %d: %dn", i,
numbers[i]);
}
return 0;](https://image.slidesharecdn.com/arrays-from-basics-to-advancedfinal-250105162248-4796559f/85/Arrays-from-Basics-to-Advanced-final-pptx-8-320.jpg)
Arrays-from-Basics-to-Advanced final.pptx
- 1. C Programming: Arrays from Basics to Advanced by Dr. Y. Kiran Kumar
- 2. Introduction to Arrays An array is a collection of elements of the same data type. It stores multiple values in a single variable. Arrays offer a more efficient way to handle data compared to declaring separate variables for each value. They simplify data manipulation and allow for looping and other operations.
- 3. Definition and Purpose of Arrays Definition An array is a collection of elements of the same data type stored in contiguous memory locations. Purpose Arrays are used to store multiple values in a single variable, simplifying data manipulation and allowing for efficient operations.
- 4. Declaring and Initializing Arrays Syntax data_type array_name[size]; Examples int numbers[5]; /* Declaration */ int numbers[5] = {10, 20, 30, 40, 50}; /* Initialization */
- 5. Declaring and Initializing Arrays Syntax: data_type array_name[size]; Examples: Declaration: int numbers[5]; Initialization: int numbers[5] = {10, 20, 30, 40, 50}; Partial Initialization: int numbers[5] = {10, 20}; // Remaining elements are initialized to 0
- 6. Accessing and Modifying Array Elements Accessing Elements are accessed using an index, starting from 0. Modifying Elements can be modified by assigning a new value to the desired index.
- 7. Array Operations: Traversal, Searching, and Sorting Traversal Iterating through all elements in an array. Searching Finding a specific element in an array. Sorting Arranging elements in a specific order.
- 8. Accessing Array Elements int numbers[5] = {10, 20, 30, 40, 50}; Using Index: Array indexing starts from 0. printf("%d", numbers[2]); // Outputs 30 Example Program: #include <stdio.h> int main() { int numbers[5] = {10, 20, 30, 40, 50}; for (int i = 0; i < 5; i++) { printf("Element at index %d: %dn", i, numbers[i]); } return 0;
- 15. Dynamic Memory Allocation for Arrays Concept Allocating memory for arrays at runtime. Advantages Flexibility in array size and efficient memory usage.
- 16. Array Applications in C Programming Sorting Algorithms Implementing sorting algorithms like bubble sort, insertion sort, and quick sort. Data Structures Building data structures such as stacks, queues, and linked lists. Game Development Storing game data, such as player positions, scores, and inventory items.
- 17. Advanced Array Concepts Dynamic Arrays Used when the size of the array needs to be determined at runtime. Array of Pointers Used to store addresses of other variables, allowing for flexible data management. Multi-Dimensional Arrays in Functions Functions can be used to manipulate and process multi- dimensional arrays effectively.
- 18. Arrays and Pointers 1 Pointer Arithmetic Pointers can be used to access and manipulate array elements. 2 Array Decay When an array name is used without an index, it decays to a pointer to the first element. 3 Passing Arrays to Functions Arrays are passed to functions as pointers, allowing for efficient memory management.
- 19. Summary Arrays are fundamental to C programming and are versatile tools for managing data. Advanced concepts like dynamic arrays and array of pointers extend their usefulness. Real-time examples demonstrate their practical applications and aid in logic building.