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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. const int MAX_SIZE = 10000;
  5.  
  6. int main() {
  7.     int n, m, v[MAX_SIZE], k, x;
  8.     cin >> n;
  9.     for (int i = 0; i < n; ++i) {
  10.         cin >> v[i];
  11.     }
  12.     int size = n;
  13.     cin >> m; 
  14.     while (m--) {
  15.         cin >> k; 
  16.         if (k == 1) {
  17.             cin >> x; 
  18.             if (size < MAX_SIZE) {
  19.                 v[size] = x; 
  20.                 ++size; 
  21.             }
  22.         } else if (k == 2) {
  23.             if (size >= 0) {
  24.                 --size;
  25.             }
  26.         }
  27.     }
  28.     if(size <= 0){
  29.     	cout << " ";
  30.     }else{
  31.     cout << size << "\n";
  32.     for (int i = 0; i < size; ++i) {
  33.         cout << v[i] << " "; 
  34.     }}
  35.     return 0;
  36. }
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin
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7
5 -4 0 -7 7 7 2
7
2
2 
2
2
1 5
1 6
1 7
stdout
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6
5 -4 0 5 6 7
https://ideone.com/4lVWhR
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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