c++ - cses coin piles problem script takes to long

Question

how can i make the code run faster as my solution is right but it does it too slow! the idea is that you have a number of piles with a different amount of coins in it and the problem is asking you if you can take out the coins from the piles, by subtracting one of the piles by two and the other one with one and vice versa. Without leaving coins inside the piles. If you can you should get "YES" and if not "NO"! Sorry if you had a problem reading that i am not a native English Speaker!

Here's the solution i came up with!

for(int i = 0; i < n; ++i){
    cin >> a, b;
    while(a>=1 && b >=1){
         if(a>b){
          a--;
          a--;
          b--;
         }else if(a<b){
            a--;
            b--;
            b--;
          }
    }
    if(a==0 && b==0){
       cout << "YES 
";

    }else{
      cout << "NO 
";
     }

}

question from:https://stackoverflow.com/questions/65885547/cses-coin-piles-problem-script-takes-to-long

Answer 1

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