Program for Array of Structure

January 27, 2023

Array of Structure

We will write a C program to display array of structure for storing data and the data will be entered by the user. This will help to understand the basic structure of programming. In this program , we will display the array of structure easily by using proper syntax and algorithms.

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Working of Program :

In the program, we will require some numbers from the user to display the array of structure of the given inputs.

Important Note for Palindrome:

  • An array of structure can be defined as the collection of various structures variables where each variable stores information about different entities.
  • An array of structures is used to stores information about various entities of various data type.
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Problem 1

Write a program to display array of structures.

  • Firstly, we have to enter the an input.
  • Then print that array using structure.

Code

Run 
#include<stdio.h>
struct student
{
  char firstName[50];
  int roll;
  float marks;
}
s[3];
int main ()
{
  int i;
  printf ("Enter information of students = \n");
  for (i = 0; i < 3; ++i)
    {
      s[i].roll = i + 1;
      printf ("For roll number%d,\n", s[i].roll);
      printf ("Enter first name = ");
      scanf ("%s", s[i].firstName);
      printf ("Enter marks = ");
      scanf ("%f", &s[i].marks);
    }
  printf ("Displaying Information = \n\n");
  for (i = 0; i < 3; ++i)
    {
      printf ("\nRoll number = %d\n", i + 1);
      printf ("First name = ");
      puts (s[i].firstName);
      printf ("Marks: %.1f", s[i].marks);
      printf ("\n");
    }
  return 0;
}

Output

Enter information of students = 
For roll number1,
Enter first name = saru
Enter marks = 99
For roll number2,
Enter first name = salu
Enter marks = 98
For roll number3,
Enter first name = sanu
Enter marks = 96
Displaying Information = 


Roll number = 1
First name = saru
Marks: 99.0

Roll number = 2
First name = salu
Marks: 98.0

Roll number = 3
First name = sanu
Marks: 96.0

Strong number

Perfect number

Harshad number

Abundant number

Friendly pair

Note:

In the following program we will display the array of structure.

Problem 2

Write a program to display array using structure.

  • Firstly, we have to enter the data.
  • Then print that array using structure.

Code

Run 
#include<stdio.h>
struct student
{
  char name[20];
  int rollno;
  float marks;
};
int main ()
{
  int i, n;
  printf ("Enter how many records we want to store = ");
  scanf ("%d", &n);
  struct student stuarr[n];
  printf ("Enter name, roll no. and marks Below : \n");
  for (i = 0; i < n; i++)
    {
      printf ("\nEnter %d record : \n", i + 1);

      printf ("Enter Name = ");
      scanf ("%s", stuarr[i].name);
      printf ("Enter RollNo. = ");
      scanf ("%d", &stuarr[i].rollno);
      printf ("Enter Marks = ");
      scanf ("%f", &stuarr[i].marks);

    }
  printf ("\n\tName\tRollNo\tMarks\t\n");
  for (i = 0; i < n; i++)
    printf ("\t%s\t%d\t%.2f\t\n", stuarr[i].name, stuarr[i].rollno,
	    stuarr[i].marks);

  return 0;
}

Output

Enter how many records we want to store = 3
Enter name, roll no. and marks Below : 

Enter 1 record : 
Enter Name = shanvi
Enter RollNo. = 1
Enter Marks = 99
Enter 2 record : 
Enter Name = salu
Enter RollNo. = 2
Enter Marks = 98
Enter 3 record : 
Enter Name = sanu
Enter RollNo. = 3
Enter Marks = 97
Name	RollNo	Marks	
	shanvi	1	99.00	
	salu	2	98.00	
	sanu	3	97.00

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