C++ Program to Print nPr using While Loop
Write C++ Program to Print nPr using While Loop
// CPP Program to Print nPr using While Loop #include <iostream> using namespace std; int fact(int n) { int f = 1; int i = 1; while(i <= n) { f = f * i; i++; } return f; } int main() { int n, r; cout << "Enter the value of n:--> "; cin >> n; cout << "Enter the value of r :--> "; cin >> r; int result = fact(n)/fact(n-r); //permutation formula cout << "The value of nPr is " << result; return 0; }
Output:
Enter the value of n:--> 5
Enter the value of r :--> 3
The value of nPr is 60