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  1. #include <iostream>
  2. #include <math.h>
  3. using namespace std;
  4.  
  5. int factorial(int param) {
  6. 	int fact = 1;
  7. 	for(int i = 2; i <= param; i++) 
  8. 		fact = fact*i;
  9. 	return fact;
  10. }
  11.  
  12. int main() {
  13. 	double sum = 0;
  14. 	int n, x;
  15. 	n = 3; // cin >> n;
  16. 	x = 5; // cin >> 5;
  17. 	for(int i = 1; i <= n; i++) {
  18. 		sum = sum + pow(x, i)/factorial(i);
  19. 	}
  20. 	cout << sum;
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 2728KB
comments (?)
stdin 
Standard input is empty
stdout 
38.3333
https://ideone.com/8GxZX8
language:
C++ 4.3.2 (gcc-4.3.2)
created:
12 years ago
visibility:
public

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