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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. const char el = '\n';
  4. using ll = long long;
  5.  
  6. int teamOf[1000000];
  7.  
  8. int main() {
  9.     cin.tie(0)->sync_with_stdio(0);
  10.  
  11.     int t;
  12.     int scenario = 1;
  13.     while (cin >> t && t != 0) {
  14.         for (int i = 0; i < t; i++) {
  15.             int n;
  16.             cin >> n;
  17.             for (int j = 0; j < n; j++) {
  18.                 int x;
  19.                 cin >> x;
  20.                 teamOf[x] = i;
  21.             }
  22.         }
  23.         queue<int> teamQ;
  24.         queue<int> q[1000];
  25.         bool inQ[1000] = {};
  26.         cout << "Scenario #" << scenario++ << el;
  27.         string c;
  28.         while (cin >> c && c != "STOP") {
  29.             if (c == "ENQUEUE") {
  30.                 int x;
  31.                 cin >> x;
  32.                 int team = teamOf[x];
  33.                 if (!inQ[team]) {
  34.                     teamQ.push(team);
  35.                     inQ[team] = true;
  36.                 }
  37.                 q[team].push(x);
  38.             }
  39.             else if (c == "DEQUEUE") {
  40.                 int team = teamQ.front();
  41.                 cout << q[team].front() << el;
  42.                 q[team].pop();
  43.                 if (q[team].empty()) {
  44.                     teamQ.pop();
  45.                     inQ[team] = false;
  46.                 }
  47.             }
  48.         }
  49.     }
  50.     return 0;
  51. }
Success #stdin #stdout 0.01s 5320KB
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https://ideone.com/0AYcUm
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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