Factorial (using recursive approach)
General Explanatiobn: Factorial of a non-negative integer, is multiplication of all integers smaller than or equal to n. For example factorial of 6 is 65432*1 which is 720.
Pseudo Code:
int Factorial(int n) { if n is 0 return 1; else multiply n with Factorial(n-1);//till n!=0 }
main function { take any arbitrary no. and cout its factorial return 0; }