結果
| 問題 | No.2715 Unique Chimatagram | 
| コンテスト | |
| ユーザー |  | 
| 提出日時 | 2024-04-05 22:18:39 | 
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 21 ms / 2,000 ms | 
| コード長 | 2,001 bytes | 
| コンパイル時間 | 2,685 ms | 
| コンパイル使用メモリ | 205,480 KB | 
| 最終ジャッジ日時 | 2025-02-20 21:32:19 | 
| ジャッジサーバーID (参考情報) | judge3 / judge3 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 3 | 
| other | AC * 40 | 
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define INF (int)1e18
#define f first
#define s second
mt19937_64 RNG(chrono::steady_clock::now().time_since_epoch().count());
void Solve() 
{
    int n; cin >> n;
    
    vector<string> a(n);
    for (auto &x : a){
        cin >> x;
        sort(x.begin(), x.end());
    }
    
    for (int i = 0; i < n; i++){
        vector <int> c1(26, 0);
        for (auto ch : a[i]) c1[ch - 'a']++;
        
        bool good = true;
        vector<bool> poss(26, true);
        int count = 0;
        for (auto x : a){
            count++;
            if (x.size() != a[i].size()) continue;
            if (count == i + 1) continue;
            
            if (x == a[i]) {
                good = false;
                break;
            }
            
            vector <int> c2(26, 0);
            for (auto ch : x) c2[ch - 'a']++;
            
            int diff = 0;
            for (int i = 0; i < 26; i++) diff += abs(c2[i] - c1[i]);
            
            if (diff == 2){
                for (int i = 0; i < 26; i++) if (c2[i] > c1[i]) poss[i] = false;
            }
        }
        
        if (!good) continue;
        
        for (int j = 0; j < 26; j++){
            if (poss[j]){
                a[i] += (char)(j + 'a');
                cout << a[i] << "\n";
                return;
            }
        }
    }
    
    cout << -1 << "\n";
}
int32_t main() 
{
    auto begin = std::chrono::high_resolution_clock::now();
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
    // freopen("in",  "r", stdin);
    // freopen("out", "w", stdout);
    
   // cin >> t;
    for(int i = 1; i <= t; i++) 
    {
        //cout << "Case #" << i << ": ";
        Solve();
    }
    auto end = std::chrono::high_resolution_clock::now();
    auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
    cerr << "Time measured: " << elapsed.count() * 1e-9 << " seconds.\n"; 
    return 0;
}
            
            
            
        