(Coin Tossing) Write a program that simulates coin tossing. For each toss of the coin, the program should print Heads or Tails. Let the program toss the coin 100 times and count the number of times each side of the coin appears. Print the results. The program should call a separate function flip that takes no arguments and returns 0 for tails and 1 for heads. [Note: If the program realistically simulates the coin tossing, then each side of the coin should appear approximately half the time.]

Question

What will be an ideal response?

Answer 1

// Simulate coin tossing.
#include
#include
#include
using namespace std;

int flip(); // function prototype

int main()
{
int headsCount = 0; // total Heads count
int tailsCount = 0; // total Tails count

srand( time( 0 ) ); // seed random number generator

// simulate coin toss 100 times
for ( int loop = 1; loop <= 100; loop++ )
{
if ( flip() == 0 ) // simulate coin toss, 0 refers to tails
{
++tailsCount; // update Tails count
cout << "Tails "; // display result
} // end if
else // 1 refers to heads
{
++headsCount; // update Heads count
cout << "Heads "; // display result
} // end else

if ( loop % 10 == 0 ) // 10 tosses per line
cout << endl;
} // end for

// display totals
cout << "\nThe total number of Heads was " << headsCount
<< "\nThe total number of Tails was " << tailsCount << endl;
} // end main

// flip uses random number to simulate coin toss
int flip()
{
return rand() % 2; // scale by 2 for binary result
} // end function flip