Menu Driven Program For Vaccination Registration System

Pre-Requisite: Linked list concept in C program, Function structure in C Language

Problem Statement:

Write a program to build a menu-driven Covid Vaccination Registration Portal using C program which can perform the following operations:

• Taking Candidate Names
• Date, time and venue for Vaccination.
• Printing Receipt of Vaccination.

Approach:

Below is the approach for the above operations:

• Taking Candidate Name: This function will take necessary details of every candidate like their name, id card type & number, gender, etc. And it will store each data in a node like in a linked list.

C

// Function To Take Candidate Numbers & Details
void details()
{
    int i;
    char a[20], b[6], c[40], d[20], e[20], f[3];

    // Calling Heading() Function
    heading();
    printf(
        "\t\t\t\tEnter Candidate Number (Max 4 People): ");
    scanf("%d", &n);

    // Taking Candidate Details
    for (i = 1; i <= n; i++) {
        // For Clear Screen
        system("cls");

        // Calling Heading() Function
        heading();
        printf("\t\t\t\tEnter The %dth Candidate Name: ",
               i);
        fflush(stdin);
        gets(a);
        printf("\t\t\t\tEnter The %dth Candidate Gender: ",
               i);
        fflush(stdin);
        gets(b);
        printf("\t\t\t\tEnter The %dth Candidate Id-Type: ",
               i);
        fflush(stdin);
        gets(c);
        printf(
            "\t\t\t\tEnter The %dth Candidate Id-Number: ",
            i);
        fflush(stdin);
        gets(d);
        printf("\t\t\t\tEnter The %dth Candidate Mobile "
               "Number: ",
               i);
        fflush(stdin);
        gets(e);
        printf("\t\t\t\tEnter The %dth Candidate "
               "Co-Morbidity Status (Yes or No): ",
               i);
        fflush(stdin);
        gets(f);

        // Calling Function addnode()
        addnode(a, b, c, d, e, f);
    }
}

• Date, time and venue for vaccination: In this function, we have to give details like state, city, hospital name where we want to take the vaccine.

C

// Function To Take Date & Time Details
void venue()
{
    int i, x = 0;

    // For Clear Screen
    system("cls");

    // Calling Heading() Function
    heading();
    printf("\t\t\t\tEnter State: ");
    gets(state);
    printf("\t\t\t\tEnter District: ");
    gets(dis);
    printf("\t\t\t\tEnter Date (DD-MM-YY): ");
    gets(date);
    printf("\t\t\t\tEnter Time (24 Hours): ");
    gets(hour);

    // For Clear Screen
    system("cls");

    // Calling Heading() Function
    heading();

    // List Of Hospitals Available
    printf("\t\t\t\t1. GFG Hospital\n");
    printf("\t\t\t\t2. Zilla Hospital\n");
    printf("\t\t\t\t3. DS Hospital\n");

    // Taking Hospital Choice
    do {
        printf("\t\t\t\tEnter Choice: ");
        scanf("%d", &i);
        if (i == 1)
            strcpy(hos, "GFG Hospital");
        else if (i == 2)
            strcpy(hos, "Zilla Hospital");
        else if (i == 3)
            strcpy(hos, "DS Hospital");
        else {
            printf("Enter Correct Choice...");
            x = 1;
        }
    } while (x);
}

• Printing Receipt: After filling in the details it will generate all details in a receipt format. We implement this by using the linked list concept.

C

// Function To Print Receipt
void receipt()
{
    int i;
    Node* ptr = start;

    // For Clear Screen
    system("cls");
    heading();
    printf(
        "\n\t\t\t\t**Take Screenshot For Further Use**\n");

    // Printing Candidate All Details
    for (i = 1; i <= n; i++) {
        printf("\t\t\t\t%dst Candidate Name: ", i);
        puts(ptr->name);
        printf("\t\t\t\t%dst Candidate Gender: ", i);
        puts(ptr->gen);
        printf("\t\t\t\t%dst Candidate Id-type: ", i);
        puts(ptr->idtype);
        printf("\t\t\t\t%dst Candidate Id Number: ", i);
        puts(ptr->id);
        printf("\t\t\t\t%dst Candidate Mobile Number: ", i);
        puts(ptr->mob);
        printf(
            "\t\t\t\t%dst Candidate Co-Morbidity Status: ",
            i);
        puts(ptr->comor);
        printf("\n");
        ptr = ptr->link;
    }
    printf("\t\t\t\tState: ");
    puts(state);
    printf("\t\t\t\tDistrict: ");
    puts(dis);
    printf("\t\t\t\tDate: ");
    puts(date);
    printf("\t\t\t\tTime: ");
    puts(hour);
    printf("\t\t\t\tChosen Hospital: ");
    puts(hos);
    printf("\n\t\t\t\t**Thank You For registration**");
}

Below is the implementation of the above approach.

C

// C program for the above approach

#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// Defining Structure
typedef struct mynode {
    char name[20];
    char gen[6];
    char idtype[40];
    char id[20];
    char mob[20];
    char comor[3];
    struct mynode* link;
} Node;
Node* start = NULL;

// Global Variables
int n;
char state[20], dis[20], hos[40], date[12], hour[6];

// Declaring Function Used In This Program
void heading();
void details();
void venue();
void receipt();

// Driver Code
void main()
{
    details();
    venue();
    receipt();
}

// Function To Take Candidate Numbers & Details
void details()
{
    int i;
    char a[20], b[6], c[40], d[20], e[20], f[3];

    // Calling Heading() Function
    heading();
    printf(
        "\t\t\t\tEnter Candidate Number (Max 4 People): ");
    scanf("%d", &n);

    // Taking Candidate Details
    for (i = 1; i <= n; i++) {
        // For Clear Screen
        system("cls");

        // Calling Heading() Function
        heading();
        printf("\t\t\t\tEnter The %dth Candidate Name: ",
               i);
        fflush(stdin);
        gets(a);
        printf("\t\t\t\tEnter The %dth Candidate Gender: ",
               i);
        fflush(stdin);
        gets(b);
        printf("\t\t\t\tEnter The %dth Candidate Id-Type: ",
               i);
        fflush(stdin);
        gets(c);
        printf(
            "\t\t\t\tEnter The %dth Candidate Id-Number: ",
            i);
        fflush(stdin);
        gets(d);
        printf("\t\t\t\tEnter The %dth Candidate Mobile "
               "Number: ",
               i);
        fflush(stdin);
        gets(e);
        printf("\t\t\t\tEnter The %dth Candidate "
               "Co-Morbidity Status (Yes or No): ",
               i);
        fflush(stdin);
        gets(f);

        // Calling Function addnode()
        addnode(a, b, c, d, e, f);
    }
}

// Function To Create Node & Insert Data Like Linked List
void addnode(char a[20], char b[6], char c[40], char d[20],
             char e[20], char f[3])
{
    Node *newptr = NULL, *ptr;
    newptr = (Node*)malloc(sizeof(Node));
    strcpy(newptr->name, a);
    strcpy(newptr->gen, b);
    strcpy(newptr->idtype, c);
    strcpy(newptr->id, d);
    strcpy(newptr->mob, e);
    strcpy(newptr->comor, f);
    newptr->link = NULL;
    if (start == NULL)
        start = newptr;
    else {
        ptr = start;
        while (ptr->link != NULL)
            ptr = ptr->link;
        ptr->link = newptr;
    }
}

// Function To Take Date & Time Details
void venue()
{
    int i, x = 0;

    // For Clear Screen
    system("cls");

    // Calling Heading() Function
    heading();
    printf("\t\t\t\tEnter State: ");
    gets(state);
    printf("\t\t\t\tEnter District: ");
    gets(dis);
    printf("\t\t\t\tEnter Date (DD-MM-YY): ");
    gets(date);
    printf("\t\t\t\tEnter Time (24 Hours): ");
    gets(hour);

    // For Clear Screen
    system("cls");

    // Calling Heading() Function
    heading();

    // List Of Hospitals Available
    printf("\t\t\t\t1. GFG Hospital\n");
    printf("\t\t\t\t2. Zilla Hospital\n");
    printf("\t\t\t\t3. DS Hospital\n");

    // Taking Hospital Choice
    do {
        printf("\t\t\t\tEnter Choice: ");
        scanf("%d", &i);
        if (i == 1)
            strcpy(hos, "GFG Hospital");
        else if (i == 2)
            strcpy(hos, "Zilla Hospital");
        else if (i == 3)
            strcpy(hos, "DS Hospital");
        else {
            printf("Enter Correct Choice...");
            x = 1;
        }
    } while (x);
}

// Function To Print Receipt
void receipt()
{
    int i;
    Node* ptr = start;

    // For Clear Screen
    system("cls");
    heading();
    printf(
        "\n\t\t\t\t**Take Screenshot For Further Use**\n");

    // Printing Candidate All Details
    for (i = 1; i <= n; i++) {
        printf("\t\t\t\t%dst Candidate Name: ", i);
        puts(ptr->name);
        printf("\t\t\t\t%dst Candidate Gender: ", i);
        puts(ptr->gen);
        printf("\t\t\t\t%dst Candidate Id-type: ", i);
        puts(ptr->idtype);
        printf("\t\t\t\t%dst Candidate Id Number: ", i);
        puts(ptr->id);
        printf("\t\t\t\t%dst Candidate Mobile Number: ", i);
        puts(ptr->mob);
        printf(
            "\t\t\t\t%dst Candidate Co-Morbidity Status: ",
            i);
        puts(ptr->comor);
        printf("\n");
        ptr = ptr->link;
    }
    printf("\t\t\t\tState: ");
    puts(state);
    printf("\t\t\t\tDistrict: ");
    puts(dis);
    printf("\t\t\t\tDate: ");
    puts(date);
    printf("\t\t\t\tTime: ");
    puts(hour);
    printf("\t\t\t\tChosen Hospital: ");
    puts(hos);
    printf("\n\t\t\t\t**Thank You For registration**");
}

// Function To Make Heading Of Portal
void heading()
{
    printf(
        "\t\t\t\t***Covid Vaccination Registration***\n");
    printf("\t\t\t***Take Vaccine At Your Time & Fight "
           "Against Corona***\n\n");
}

Output: