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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t;cin>>t;
  6. 	while(t--){
  7. 		int n;cin>>n;
  8. 		int a[n];
  9. 		int c=n;
  10. 		for(int i=0;i<n;i++){
  11. 			cin>>a[i];
  12. 			if(i!=0)
  13. 			{
  14. 				if(a[i-1]==a[i])
  15. 				c-=1;
  16. 			}
  17. 		}
  18. 		cout<<c<<endl;
  19. 	}
  20. 	return 0;
  21. }
Success #stdin #stdout 0.01s 5424KB
comments (?)
stdin
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4
1
5
2
1 1
3
1 2 3
4
2 1 2 2
stdout
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1
1
3
3
https://ideone.com/6dK254
language:
C++14 (gcc 8.3)
created:
85 days ago
visibility:
public

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