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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int MAX_SIZE  = 1000;
  5. int main() {
  6. 	int n, v[MAX_SIZE + 1];
  7. 	cin >> n;
  8. 	int zone = 0;
  9. int counter = 0;
  10. 	for (int i = 1; i <= n; ++i) {
  11. 		cin >> v[i];
  12. 	}
  13. 		int  destination = 1;
  14. 	for(int i = 1, j = 1; destination <= n && v[i] != 0; ++destination ) {
  15.  
  16. 		int	flag = 1;
  17.  
  18. 		if(v[j] != i ) {
  19.  
  20. 			j = v[j];
  21. 			flag = 0;
  22.  
  23. 		}
  24.  
  25.  
  26. 		if(v[j] == i) {
  27. 			cout<< j << " "<< v[j] <<" \n";	
  28. 			++zone;
  29. 		destination = 1;
  30. 		j = 1;
  31. 		++i;
  32. 		v[i] = 0;
  33.  
  34. 		}
  35.  
  36. //
  37. 	}
  38. 	cout << zone ;
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 5300KB
comments (?)
stdin 
11
11 1 7 8 10 3 9 2 5 6 4
stdout 
2 1 
1
https://ideone.com/278t7D
language:
C++14 (gcc 8.3)
created:
2 years ago
visibility:
public

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