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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     ios::sync_with_stdio(false);
  6.     cin.tie(nullptr);
  7.  
  8.     int x;
  9.     cin >> x;
  10.     deque<string> d(x);
  11.     for (int i = 0; i < x; i++) {
  12.         cin >> d[i];
  13.     }
  14.  
  15.     bool f = 1;
  16.  
  17.  
  18.     if (d.front() != "Header" || d.back() != "EndHeader") {
  19.         f = 0;
  20.     }
  21.     else if (d.front() == "Header" || d.back() == "EndHeader") {
  22.         d.pop_front();
  23.  d.pop_back();
  24.     }
  25.  
  26.         else {
  27.         while(!d.empty()) {
  28.                 string s="End"+d.front();
  29.                 if(d.front()=="Header")
  30.                 {
  31.                                     f = 0;
  32.                 break;
  33.                 }
  34.             if (d.empty()||s != d.back()) {
  35.                 f = 0;
  36.                 break;
  37.             }
  38.             d.pop_front();
  39.             d.pop_back();
  40.         }
  41.     }
  42.  
  43.     if (f)
  44.         cout << "ACC";
  45.     else
  46.         cout << "WA";
  47.  
  48.     return 0;
  49. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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2
Header
EndHeader
stdout
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ACC
https://ideone.com/gsJX8C
language:
C++ (gcc 8.3)
created:
7 hours ago
visibility:
public

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