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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int t;
  6.     cin >> t; 
  7.     while (t--) {
  8.         int a, b;
  9.         cin >> a >> b;
  10.         if ((a + b) % 3 == 0 && a <= 2 * b && b <= 2 * a) {
  11.             cout << "YES" << endl;
  12.         } else {
  13.             cout << "NO" << endl;
  14.         }
  15.     }
  16.  
  17.     return 0;
  18. }
  19.  
Success #stdin #stdout 0.01s 5296KB
comments (?)
stdin
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5
2 2 
1 1
4 10
3 5
1 2
stdout
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NO
NO
NO
NO
YES
https://ideone.com/NWoGPJ
language:
C++ (gcc 8.3)
created:
10 days ago
visibility:
public

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