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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. long long stoi_a(string s) {
  4. 	long long n = 0;
  5. 	for (int i = 0; i < s.size(); ++i) {
  6. 		n = n * 10 + (s[i] - 48);
  7. 	}
  8. 	return n;
  9. }
  10. int main()
  11. {
  12. 	string n;
  13. 	cin >> n;
  14. 	long long lt = n.size();
  15. 	long long sum = 0;
  16. 	for (auto i : n)
  17. 		sum += (long long)(pow(i - '0', lt));
  18. 	long long new_num = stoi_a(n);
  19. 	if (sum == new_num) cout << "true" << '\n';
  20. 	else cout << "false" << '\n';
  21. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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Standard input is empty
stdout
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true
https://ideone.com/0Ic377
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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