Friday, 15 April 2016

C Program to Store Student Information Using Structures With Pointer

Problem :- Write A C Program to Store Information Using Structures With Pointer With Dynamically Memory Allocation In Structure In C

What Is Structure 

Structure is a user-defined data type in C which allows you to combine different data types to store a particular type of record. Structure helps to construct a complex data type in more meaningful way. It is somewhat similar to an Array. The only difference is that array is used to store collection of similar datatypes while structure can store collection of any type of data.

Structure is used to represent a record. Suppose you want to store record of Student which consists of student name, address, roll number and age. You can define a structure to hold this information.

Defining a structure

struct keyword is used to define a structure. struct define a new data type which is a collection of different type of data.

Syntax :

struct structure_name
{
 //Statements
};

Solution :-

#include <stdio.h>
#include<stdlib.h>
struct name {
   int a;
   char c[30];
};
int main(){
   struct name *ptr;
   int i,n;
   printf("Enter The No. : ");
   scanf("%d",&n);

/* Allocates the memory for n structures with pointer ptr pointing to the base address. */
   ptr=(struct name*)malloc(n*sizeof(struct name));
   for(i=0;i<n;++i){
       printf("Enter string and integer respectively:\n");
       scanf("%s%d",&(ptr+i)->c, &(ptr+i)->a);
   }
   printf("Displaying Infromation:\n");
   for(i=0;i<n;++i)
       printf("%s\t%d\t\n",(ptr+i)->c,(ptr+i)->a);
   return 0;

}

Output:-


C Program to Store Information Using Structures With Pointer With Dynamically Memory Allocation In Structure In C

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