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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. 	int n=0,i=0;
  7. 	int a[100001]={0},b[100001]={0};
  8. 	cin>>n;
  9. 	while(n!=0)
  10. 	{	
  11. 		a[0]=0;
  12. 		for(i=1;i<=n;i++)
  13. 		{
  14. 			cin>>a[i];
  15. 			b[a[i]]=i;
  16. 		}
  17. 		for(i=0;i<=n;i++)
  18. 		{
  19. 			if(a[i]!=b[i])
  20. 			{
  21. 				cout<<"not ambiguous\n";
  22. 				a[0]=1;
  23. 				break;
  24. 			}
  25. 		}
  26. 		if(a[0]==0)
  27. 		{
  28. 			cout<<"ambiguous\n";
  29. 		}
  30. 		cin>>n;
  31. 	}
  32. 	return 0;
  33.  
  34. }
Success #stdin #stdout 0s 3804KB
comments (?)
stdin
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4
1 4 3 2
5
2 3 4 5 1
1
1
0
stdout
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ambiguous
not ambiguous
ambiguous
https://ideone.com/DM1mWX
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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