Merge pull request AdarshAddee#121 from navdeepk037/patch-1

created factorial program in cpp

C++/factorialprogram.cpp

@@ -0,0 +1,17 @@
+#include<iostream>
+using namespace std;
+// github username navdeepk037   https://github.com/navdeepk037
+int fact(int n)
+{
+    int factorial=1;
+    for(int i=n;i>=1;i--)
+    factorial=factorial*i;
+    return factorial;
+}
+int main(){
+    int n;
+    cout<<"enter the number ";
+    cin>>n;
+    cout<<"the factorial of the number is "<<fact(n);
+
+}