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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int t,n,s; cin >> t;
  6. 	while(t--){
  7. 		/*string s;*/	cin >> n >>  s;
  8. 		if(s == 0 || s == 1 || s == 10 || s == 01)	cout << "YES\n";
  9. 		else	cout << "NO\n";
  10. 	}
  11. 	return 0;
  12. }
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin
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4
1
1
2
00
2
01
4
1010
stdout
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YES
YES
YES
NO
https://ideone.com/0Ql2yI
language:
C++ (gcc 8.3)
created:
59 days ago
visibility:
public

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