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  1. #include <iostream>
  2. #include <cmath>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. int main() {
  8.     ios_base::sync_with_stdio(0);
  9.     cin.tie(0);
  10.     cout.tie(0);
  11.  
  12.     int A;
  13.     long long arr[1001];
  14.     bool B = false;
  15.  
  16.     cin >> A;
  17.  
  18.     for ( int i = 0 ; i < A ; i++ ) {
  19.     cin >> arr[i];
  20.     }
  21.  
  22.     for ( int i = 0 ; i < A / 2 ; i++ ) {
  23.         if ( arr[i] != arr[A-i-1] ) {
  24.             B = true;
  25.         }
  26.     }
  27.     if ( B == false ) {
  28.             cout <<"YES";
  29.     }
  30.     else {
  31.         cout <<"NO";
  32.     }
  33.  
  34.   return 0;
  35. }
  36.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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YES
https://ideone.com/Vn97bt
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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