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  1. #include <iostream>
  2. #include <limits>
  3.  
  4. unsigned long long factorial(int x)
  5. {
  6. 	if(x < 2)
  7. 		return 1;
  8.  
  9. 	return x * factorial(x - 1);
  10. }
  11.  
  12. int main() // overflow
  13. {
  14. 	int x = 25;
  15. 	unsigned long long f = factorial(x);
  16. 	std::cout << x << "! = " <<  f << std::endl;
  17. 	std::cout << "Max value for ull: " << std::numeric_limits<unsigned long long>::max();
  18. 	for(int i = 25 ; i > 0 ; --i) {
  19. 		f /= i;
  20. 		std::cout << f << '\n';
  21. 	}
  22.  
  23. 	return 0;
  24. }
  25.  
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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25! = 7034535277573963776
Max value for ull: 18446744073709551615281381411102958551
11724225462623272
509748933157533
23170406052615
1103352669172
55167633458
2903559655
161308869
9488757
593047
39536
2824
217
18
1
0
0
0
0
0
0
0
0
0
0
https://ideone.com/oOHsfJ
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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