Definition:

An array of structures in C is a data structure that allows you to group multiple variables of different data types under a single name.

            
Syntax:
  Declare a structure:
  struct structure_name {
      data_type member1;
      data_type member2;
      // ... more members
  };
  Declare an array of structures:
  struct structure_name array_name[size];
  
Explanation:
  Each element of the array is a structure, and you can access its members using the dot operator (.).
  Arrays allow you to store and manipulate multiple instances of the same structure type.

Examples :

Program.c

#include <stdio.h> // Define the structure struct Student { char name[50]; int rollNumber; float marks; }; int main() { // Declare an array of structures struct Student students[3]; // Input data for each student for (int i = 0; i < 3; i++) { printf("Enter name, roll number, and marks for student %d:\n", i + 1); scanf("%s %d %f", students[i].name, &students[i].rollNumber, &students[i].marks); } // Display information for each student printf("\nStudent Information:\n"); for (int i = 0; i < 3; i++) { printf("Name: %s, Roll Number: %d, Marks: %.2f\n", students[i].name, students[i].rollNumber, students[i].marks); } return 0; }

        
Output
        Enter name, roll number, and marks for student 1:
  John 101 85.5
  Enter name, roll number, and marks for student 2:
  Alice 102 78.5
  Enter name, roll number, and marks for student 3:
  Bob 103 92.0
  
  Student Information:
  Name: John, Roll Number: 101, Marks: 85.50
  Name: Alice, Roll Number: 102, Marks: 78.50
  Name: Bob, Roll Number: 103, Marks: 92.00
  This program demonstrates the use of an array of structures to store and display information about students.