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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct mod {
  5.   mod(): v(0) {}
  6.   mod &operator<<(int v2) {
  7.   	v = v ? v % v2 : v2;
  8.   	return *this;
  9.   }	  
  10.   operator int() {
  11.   	return v;
  12.   }
  13.   int v;
  14. } mod;
  15.  
  16. template<int a>
  17. bool mozliwe() {
  18. 	return a;
  19. }
  20.  
  21. bool prawda() {
  22. 	return mozliwe<1>();
  23. }
  24.  
  25. bool falsz() {
  26. 	return mozliwe<0>();
  27. }
  28.  
  29. struct napis_t {
  30.   napis_t(const std::string &value): v(value) {}
  31.   char operator[](int idx) { return v[idx - 1]; }
  32.   string v;
  33. };
  34.  
  35. void wypisz(const std::string &value) {
  36.    cout << value;	
  37. }
  38.  
  39. void wypisz(char value) {
  40.    cout << value;	
  41. }
  42.  
  43. int main() {
  44. 	string wartosc;
  45. 	int n;
  46. 	bool mozliwe = falsz();
  47. 	cin >> n;
  48. 	cin >> wartosc;
  49. 	napis_t napis(wartosc);
  50.  
  51. 	if ((mod << n << 2) == 0) {
  52.         mozliwe = prawda();       		
  53.         for(int i=1; i <= n / 2; i++) {
  54.            	if(napis[i] != napis[i + n / 2]) {
  55.            		mozliwe = falsz();
  56.            	}
  57.         }
  58. 	}
  59.  
  60. 	if (mozliwe) {
  61. 		wypisz("(");
  62. 		for(int i=1; i <= n / 2; i++) {
  63. 			wypisz(napis[i]);
  64. 		}
  65. 		wypisz(")");
  66. 	}
  67. 	return 0;
  68. }
Success #stdin #stdout 0s 4404KB
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https://ideone.com/ZUBrQq
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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