Binomial Coefficients in C++

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How we implement a logic to find out the binomial coefficients of an entered number by the user in C++?. Look at the below code:

[cpp]

# include <iostream>
using namespace std;

int my_func(int x) //defination
{

if (x==0)
return 1;

else

return x*my_func(x–1);
}

int bionomial_func(int power,int y) //defination
{

cout<<” “;
return my_func(power)/(my_func(y)*my_func(power–y));

}

void main()
{
int a;

cout<<“enter binomial expression= “; //enter the expression

cin>>a;

cout<<“coefficients are”;
cout<<endl;

for(int i = 0; i <=a; ++i)

{
cout<<bionomial_func(a,i);
}

cout<<endl;
}

[/cpp]

In the code for Binomial Coefficients we defined a function binomial_func()  in which we implemented the login of finding the binomial coefficients.