Note:  This is a programming quiz.  You must use Visual C++.  You must begin with a new project, and you may not use any notes or any pre-written code.

Your task is to write the missing functions in the code below:  rand1(), random(), coinFlip(), and main().

// Quiz7.cpp

#include <stdio.h>
#include <iostream.h>
#include <stdlib.h>  // for rand()
#include <time.h>    // for time()
 

// rand1() returns a random floating point number
// in the range [0,1].  It uses the built-in function
// rand().

double rand1()
{
 // YOU WRITE THIS CODE
}
 
 

// This function returns a random floating point
// number in the range [lo,hi].  It uses the
// function rand1() defined above.

double random(double lo, double hi)
{
  // YOU WRITE THIS CODE
}
 

const int HEADS = 0;
const int TAILS = 1;

// This function returns HEADS or TAILS by simulating
// one coin flip.  It uses one of the random functions
// from above.

int coinFlip()
{
 // YOU WRITE THIS CODE
}
 

// Write this main function so that it has the following
// behavior (where *3* indicates user input the number 3):
//
// How many more heads than tails should I wait for:  *3*
// It took 17 coin flips before there were 3 more heads
// than tails.
// Goodbye!

void main()
{
 // YOU WRITE THIS CODE
}