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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int n, m, v[900001];
  6.     cin >> n >> m;
  7.     for (int i = 1; i <= n; ++i) {
  8.         cin >> v[i];
  9.     }
  10.     for (int j = 1; j <= m; ++j) {
  11.         int k;
  12.         cin >> k;
  13.         if (k == 1) {
  14.             if (n > 0) {
  15.                 --n;
  16.                 for (int i = 1; i <= n; ++i) {
  17.                     v[i] = v[i + 1];
  18.                 }
  19.             }
  20.         } else if (k == 2) { 
  21.             int x; 
  22.             cin >> x;
  23.             ++n;
  24.             v[n] = x;
  25.         }
  26.     }
  27.     cout << n << "\n";
  28.     for (int i = 1; i <= n; ++i) {
  29.         cout << v[i] << " "; 
  30.     }
  31.     return 0;
  32. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
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4 3
30 21 81 26
2 68
2 64
1->5
21 81 26 68 64
stdout
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5
21 81 26 68 64
https://ideone.com/T5Pey9
language:
C++ (gcc 8.3)
created:
12 hours ago
visibility:
public

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