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  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n, a, b, cnt;
  7. 	while(cin >> n) {
  8. 		cnt = 0;
  9. 		for(int a=1; a < n; a++) {
  10. 			b = nearbyint(log(n)/log(a));
  11. 			if ((int)nearbyint(pow(a, b)) == n) {
  12. 				cout << n << " = " << a << " ^ " << b << endl;
  13. 				cnt++;
  14. 			}
  15. 		}
  16. 		if (cnt == 0) {
  17. 			cout << "For " << n << " there are no powers\n";
  18. 		}
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 4388KB
comments (?)
stdin
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1528
6561
125
stdout
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For 1528 there are no powers
6561 = 3 ^ 8
6561 = 9 ^ 4
6561 = 81 ^ 2
125 = 5 ^ 3
https://ideone.com/aUSjIO
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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