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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t,r,c;
  6.  
  7. 	cin>>t;
  8. 	while(t--)
  9. 	{
  10. 		cin>>r>>c;
  11. 		int ar[r][c];
  12. 		for(int i=0;i<r;i++)
  13. 		{
  14. 			for(int j=0;j<c;j++)
  15. 			cin>>ar[i][j];
  16. 		}
  17. 		int check=1;
  18. 	if(ar[0][0]>=2||ar[r-1][c-1]>=2||ar[r-1][0]>=2||ar[0][c-1]>=2)
  19. 	check=0;
  20. 	else
  21. 	{
  22. 		for(int i=0;i<r;i++)
  23. 		{
  24. 			for(int j=0;j<c;j++)
  25. 			{
  26. 				if(i!=0&&i!=r-1&&j!=0&&j!=c-1)
  27. 				{
  28. 					if(ar[i][j]>=4)
  29. 					{check=0;break;}
  30. 				}
  31. 				if((i==0&&j!=0&&j!=c-1)||(i==r-1&&j!=0&&j!=c-1))
  32. 				{
  33. 					 if(ar[i][j]>=3)
  34. 					 {check=0;break;}
  35. 				}
  36. 				if((i==0&&j!=0&&j!=r-1)||(i==c-1&&j!=0&&j!=r-1)) //part you were missing
  37. 				{
  38. 					 if(ar[j][i]>=3)
  39. 					 {check=0;break;}
  40. 				}
  41.  
  42. 			}
  43. 		}
  44. 	}
  45. 	if(check==0)
  46. 	cout<< "Unstable";
  47. 	else cout<<"Stable";
  48. 	cout<<"\n";
  49. 	}
  50. 	return 0;
  51. }
Success #stdin #stdout 0s 15232KB
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stdin
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1
3 4
0 0 0 0
5 0 0 8
0 0 0 0
stdout
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Unstable
https://ideone.com/JAQuS7
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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