# C++ Program to Generate a Random Subset by Coin Flipping

C++Server Side ProgrammingProgramming

This is a C++ program to generate a Random Subset by Coin Flipping.

## Algorithms

Begin
Take elements in an array as input.
Using rand(), generate a random binary sequence.
It generates randomly 0 or 1 as coin flipping and print the array element if it is 1.
End

## Example

#include<iostream>
#include<stdlib.h>
using namespace std;
int main() {
int i, n;
cout<<"\nEnter the number of elements: ";
cin>>n;
int a[n];
cout<<"\n";
for(i = 0; i < n; i++) {
cout<<"Enter "<<i+1<<" element: ";
cin>>a[i];
}
cout<<"\nThe random subset of the given set is: \n\t { ";
for(i = 0; i < n; i++) {
if(rand()%2 == 1)
cout<<a[i]<<" ";
}
cout<<"}";
return 0;
}

## Output

Enter the number of elements: 7
Enter 1 element: 7
Enter 2 element: 6
Enter 3 element: 5
Enter 4 element: 4
Enter 5 element: 3
Enter 6 element: 2
Enter 7 element: 1
The random subset of the given set is:
{ 7 6 3 }
Published on 03-May-2019 11:28:56