I need some help...

I would like to know how to add up the integers after the id number.

For instance:
12345 = id number
19
21
22
23
-1
54321
23
15
-1

my code so far is

Code:

#include<iostream>
#include<fstream>

//void AverageSpeed(double, double);

using namespace std;

const int sentinel = -1;

int main(){
int count;
int time;

int time1;
int time2;
int time3;
int time4;
  
ifstream input;
ofstream out;

int id;

double velocity;
int distance = 1;
double average;
double sum;


int timesum[4];


input.open("race1.dat");
out.open("raceresults.txt");

cout << "Vehicle Id          Average Speed (Mph)          Status" << endl;
cout << "*******************************************************" << endl;

out  << "Vehicle Id          Average Speed (Mph)          Status" << endl;
out  << "*******************************************************" << endl;

input >> id;
while (!input.eof())
{
  cout << id << endl;
  out << id << endl;
  
input >> time;
	count = 0;
   while (time != -1)
   {	
     cout << time << endl;	
     
     count ++;

	input >> time;
   }
   input >> id;
}





input.close();
out.close();

return 0;
}


/***********************************/
//void AverageSpeed(double velocity, double time)
//{
 //velocity =  
  
//average = time/4;

Use += to add the current value of time to the current sum. Don't forget to set/reset sum to 0 when you start with a new id.

Doesn't anybody bother to
- read the FAQ
- indent their code
- preview before they post?