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CODE EXAMPLE FOR CPP

cpp factorial of a number.

/*#include<bits/stdc++.h>
using namespace std;
iterative solution:
int fact (int n, int k)
{
	if(n==0) return 1;
	return fact(n-1,k*n);
}
int main()
{
	int n,k=1;
	cin>>n;
	int ans=fact(n,k);
	cout<<ans<<endl;
}*/
//recursive solution.
#include<bits/stdc++.h>
using namespace std;
int fact(int n)
{
	if(n==0)return 1;
	return n*fact(n-1);
}
int main(){
	int n;
	cin>>n;
	cout<<fact(n)<<endl;
	
}
 
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Tagged: #cpp #factorial
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