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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int MAX_ELEM = 10000;
  5.  
  6. int main() {
  7.     int n, v[MAX_ELEM + MAX_ELEM + 1], m, k, x;
  8.     cin >> n;
  9.     for (int i = 1; i <= n; ++i) {
  10.         cin >> v[i];
  11.     }
  12.     cin >> m;
  13.     for (int j = 1; j <= m; ++j) {
  14.         if (m <= MAX_ELEM) {
  15.             cin >> k;
  16.             if (k == 1) {
  17.                 cin >> x;
  18.                 ++n;
  19.                 v[n] = x;
  20.             }
  21.             if (k == 2) {
  22.                 if (n > 0) {
  23.                     --n;
  24.                 }
  25.             }
  26.         }
  27.     }
  28.     cout << n << "\n ";
  29.     for (int i = 1; i <= n; ++i) {
  30.         cout << v[i] << " ";
  31.     }
  32.     return 0;
  33. }
Success #stdin #stdout 0s 5288KB
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https://ideone.com/hdCwzR
language:
C++ (gcc 8.3)
created:
78 days ago
visibility:
public

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