Nested Structures in C

Write a C program using a nested structure to store student information along with address details.

Two structures are defined: Address for location data and Student which includes Address as a nested structure.
A Student variable named student is declared to store both personal and address information.
User input is collected for all fields using scanf, including accessing nested fields like student.address.city.
All stored data is printed using dot notation for both direct and nested structure members.

Example : pgm.c

#include <stdio.h>

// Nested Structure
struct Address {
    char city[50];
    char state[50];
    int pincode;
};

// Outer Structure
struct Student {
    int id;
    char name[50];
    float marks;
    struct Address address; // Nested structure
};

int main() {
    struct Student student;

    // Input student data
    printf("Enter student ID: ");
    scanf("%d", &student.id);

    printf("Enter student name: ");
    scanf(" %[^\n]", student.name);

    printf("Enter student marks: ");
    scanf("%f", &student.marks);

    printf("Enter city: ");
    scanf(" %[^\n]", student.address.city);

    printf("Enter state: ");
    scanf(" %[^\n]", student.address.state);

    printf("Enter pincode: ");
    scanf("%d", &student.address.pincode);

    // Output student data
    printf("\nStudent Details:\n");
    printf("ID: %d\n", student.id);
    printf("Name: %s\n", student.name);
    printf("Marks: %.2f\n", student.marks);
    printf("City: %s\n", student.address.city);
    printf("State: %s\n", student.address.state);
    printf("Pincode: %d\n", student.address.pincode);

    return 0;
}

Output :

Enter student ID: 101
Enter student name: Alex
Enter student marks: 88.5
Enter city: Salem
Enter state: Tamil Nadu
Enter pincode: 636001

Student Details:
ID: 101
Name: Alex
Marks: 88.50
City: Salem
State: Tamil Nadu
Pincode: 636001

Basic

Switch Case

Goto

Operators

if Statement

Nested if

While Loop

For Loop

Patterns

Array

2D Array

String Function Example

Pointers

Recursion Function

Structure

Excersises

Others