Voting Management System in C++ using File Handling

Voting management system is most demanded management system in C++ among students because this covers logic , syntax and thinking capabilities… I have done Voting management system in C++ using only file handling, No hard concepts like OOP and Data structure has been used. So This code can be used for beginners too.

Here is Demo Video of Working of Code

Here is Code in C++

/*Voting Management System using file handling in C++
maximum vote can be casted : 200
*/
//any ID that is entered once can't be added again

#include<iostream>
#include<fstream>
#include<conio.h>
using namespace std;
//ID's.txt file for matching ID of the user
//vote_casted_ID.txt file containing ID's that have been used to cast vote
int main()
{
	cout<<"\n\tVOTING MANAGEMENT SYSTEM\n";
	string name;
	int i,j,ID;
	bool Id_exist=0;
    //ID must be 4 digit number starting from 5555 ending at 5755
	fstream file;
	file.open("ID's.txt",ios::in);
	cout<<"\n\nEnter Your Name : ";
	cin>>name;
	cout<<"\nEnter Your ID : ";
	cin>>ID;
	int arr[200];
	for( i=0;i<200;i++)
	file>>arr[i];
	file.close();
	for( j=0;j<i;j++)
	{
		if(ID==arr[j])
		{
			arr[j]=0;
			Id_exist=1;
		}
	}
	file.open("ID's.txt",ios::out);
		for(i=0;i<200;i++)
		file<<arr[i]<<endl;
		file.close();

	if(Id_exist==0)
	{
		cout<<"\nInvalid ID or it has already been used :| ";
		return 0;
	}
	int c=0,party;
	do
	{
	c++;
	cout<<"\nChoose a Party to cast your Vote \n\n";
	cout<<"1-PTI"<<endl;
	cout<<"2-PMLN"<<endl;
	cout<<"3-PPP"<<endl;
	cin>>party;
	}while((party<1 || party>3));
	int count;
	if(party==1)
	{
		file.open("PTI.txt",ios::in);
		file>>count;
		count++;
		file.close();
		file.open("PTI.txt",ios::out);
		file<<count;
		file.close();
	}
	else if(party==2)
	{
		file.open("PMLN.txt",ios::in);
		file>>count;
		count++;
		file.close();
		file.open("PMLN.txt",ios::out);
		file<<count;
		file.close();
	}
	else if(party==3)
	{
		file.open("PPP.txt",ios::in);
		file>>count;
		count++;
		file.close();
		file.open("PPP.txt",ios::out);
		file<<count;
		file.close();
	}
	cout<<"\nYour vote has been casted successfully :) "<<endl;
	char res;
	cout<<"\nDo you want to see the results (y/n)\n";
	cin>>res;
	int pti,pmln,ppp;
	if(res=='y'|| res=='Y')
	{
		file.open("PTI.txt",ios::in);
		file>>pti;
		file.close();
		file.open("PMLN.txt",ios::in);
		file>>pmln;
		file.close();
		file.open("PPP.txt",ios::in);
		file>>ppp;
		file.close();
		cout<<"\nNumber of votes casted to each party "<<endl<<endl;
		cout<<"PTI = "<<pti<<endl;
		cout<<"PMLN = "<<pmln<<endl;
		cout<<"PPP = "<<ppp<<endl;
		return 0;
	}
	else
	cout<<"\nThank You for casting Vote "<<endl;
}

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