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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6. 	int n;
  7. 	cin>>n;
  8. 	int i;
  9. 	for(int i=1;i<=n;i++)
  10. 	{
  11. 		int value;
  12. 		value=i%2==0?1:0;
  13. 		for(int j=1;j<=i;j++)
  14. 		{
  15. 			cout<<value;
  16. 			value=1-value;
  17. 		}
  18. 		cout<<endl;
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 4200KB
comments (?)
stdin
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8
stdout
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0
10
010
1010
01010
101010
0101010
10101010
https://ideone.com/2vQoMH
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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