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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     int t;
  8.     cin >> t;
  9.     while(t--)
  10.     {
  11.         int n;
  12.         cin >> n;
  13.         int a[n];
  14.         for(int i = 0; i < n; i++)
  15.             cin >> a[i];
  16.         bool kt = true;    
  17.         for(int i = 0; i < n/2; i++)
  18.             if(a[i] != a[n-1-i])
  19.                 kt = false;
  20.         if(kt)
  21.             cout << "YES\n";
  22.         else
  23.             cout << "NO\n";
  24.     }
  25. }
Success #stdin #stdout 0.01s 5284KB
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stdin
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2
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1 4 4 1
5

1 5 5 5 3
stdout
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YES
NO
https://ideone.com/LCNdwT
B4: kiểm tra mảng đối xứng
language:
C++14 (gcc 8.3)
created:
9 days ago
visibility:
public

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