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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int n;
  6. 	cin>>n;
  7. 	for(int i = 0; i < n; i++){
  8. 		int a,b;
  9. 		cin>>a>>b;
  10. 		if(b==a+2||a==b+2||((a%2==1)&&(b==a+1))||((b%2==1)&&(a==b+1))) cout<<"YES"<<"\n";
  11. 		else cout<<"NO"<<"\n";
  12. 	}
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 4368KB
comments (?)
stdin
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7
1 4
4 3
5 4
10 12
1 3
999999999 1000000000
17 2384823
stdout
copy 
NO
YES
NO
YES
YES
YES
NO
https://ideone.com/tK6ZgE
language:
C++ (gcc 8.3)
created:
3 years ago
visibility:
public

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