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  1. #include <iostream>
  2. const int maxn = 1000000;
  3. using namespace std;
  4. int n,a,d[maxn+2],dd[maxn+1],p,tplt,m;
  5. int main() {
  6. 	cin >> n;
  7. 	for (int i=1; i<=n; i++)
  8. 	{
  9. 	  cin >> a;
  10. 	  d[a] = i;
  11. 	}
  12. 	tplt = 0;
  13. 	p = n;
  14. 	m = n;
  15. 	for (int i=n; i>=1; i--)
  16. 	{
  17. 		if (d[i]==p)
  18. 		{
  19. 			tplt++;
  20. 			dd[m]=p-m+1;
  21. 			p = m-1;
  22. 			m = p;
  23. 		}
  24. 		else 
  25. 		{
  26. 			if (d[i]<m) m = d[i];
  27. 		}
  28. 	}
  29. 	cout << tplt;
  30. 	for (int i=1; i<=n; i++)
  31. 	{
  32. 		if (dd[i]!=0)
  33. 		{
  34. 			cout << '\n' << dd[i] << ' ';
  35. 		}
  36. 		cout << i << ' ';
  37. 	}
  38. 	return 0;
  39. }
Success #stdin #stdout 0s 11272KB
comments (?)
stdin 
6
2 1 5 4 3 6
stdout 
3
2 1 2 
3 3 4 5 
1 6
https://ideone.com/5JVQDr
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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