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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. using namespace std;
  6.  
  7. void solve() {
  8.     int N;
  9.     cin >> N;
  10.     vector<int> A(N);
  11.     for (int i = 0; i < N; ++i) {
  12.         cin >> A[i];
  13.     }
  14.  
  15.     sort(A.begin(), A.end());
  16.  
  17.     vector<int> piles;
  18.     int current_val = A[0];
  19.     int count = 1;
  20.  
  21.     if (current_val > 0) {
  22.         piles.push_back(current_val);
  23.     }
  24.  
  25.     for (int i = 1; i < N; ++i) {
  26.         if (A[i] == current_val) {
  27.             count++;
  28.         } else {
  29.             piles.push_back(count);
  30.             piles.push_back(A[i] - current_val);
  31.             current_val = A[i];
  32.             count = 1;
  33.         }
  34.     }
  35.     piles.push_back(count);
  36.  
  37.     for (size_t i = 0; i < piles.size(); ++i) {
  38.         if (piles[i] > 1) {
  39.             if (i % 2 == 0) cout << "Alice\n";
  40.             else cout << "Bob\n";
  41.             return;
  42.         }
  43.     }
  44.  
  45.     if (piles.size() % 2 != 0) cout << "Alice\n";
  46.     else cout << "Bob\n";
  47. }
  48.  
  49. int main() {
  50.     ios_base::sync_with_stdio(false);
  51.     cin.tie(NULL);
  52.     int T;
  53.     if (cin >> T) {
  54.         while (T--) solve();
  55.     }
  56.     return 0;
  57. }
Success #stdin #stdout 0s 5316KB
comments (?)
stdin
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5
1
2
3
1 1 1
4
1 2 3 4
7
3 1 4 1 5 9 2
3
218 503 2026
stdout
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Alice
Bob
Bob
Bob
Alice
https://ideone.com/TlQpIu
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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