結果
| 問題 | 
                            No.1058 素敵な数
                             | 
                    
| コンテスト | |
| ユーザー | 
                             scol_kp
                         | 
                    
| 提出日時 | 2020-05-22 21:36:42 | 
| 言語 | C++17  (gcc 13.3.0 + boost 1.87.0)  | 
                    
| 結果 | 
                             
                                WA
                                 
                             
                            
                         | 
                    
| 実行時間 | - | 
| コード長 | 1,428 bytes | 
| コンパイル時間 | 2,459 ms | 
| コンパイル使用メモリ | 198,124 KB | 
| 最終ジャッジ日時 | 2025-01-10 14:29:52 | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge5 / judge1 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 1 | 
| other | WA * 9 | 
ソースコード
#include <bits/stdc++.h>
#define FASTIO
using namespace std;
using ll = long long;
using Vi = vector<int>;
using Vl = vector<ll>;
using Pii = pair<int, int>;
using Pll = pair<ll, ll>;
constexpr int I_INF = numeric_limits<int>::max();
constexpr ll L_INF = numeric_limits<ll>::max();
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void solve() {
    ll N;
    cin >> N;
    Vl ps;
    for (ll x = 100001;; x++) {
        bool ok = true;
        for (ll y = 2; y * y <= x; y++) {
            if (y % x == 0) {
                ok = false;
                break;
            }
        }
        if (ok) {
            ps.emplace_back(x);
        }
        if (ps.size() == 10) {
            break;
        }
    }
    Vl vs;
    for (ll i = 0; i < 10; i++) {
        for (ll j = 0; j < 10; j++) {
            vs.emplace_back(ps[i] * ps[j]);
        }
    }
    sort(vs.begin(), vs.end());
    if (N == 1) {
        cout << 1 << endl;
    }
    else {
        cout << vs[N - 2] << endl;
    }
}
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
int main() {
#ifdef FASTIO
    cin.tie(0), cout.tie(0);
    ios::sync_with_stdio(false);
#endif
#ifdef FILEINPUT
    ifstream ifs("./in_out/input.txt");
    cin.rdbuf(ifs.rdbuf());
#endif
#ifdef FILEOUTPUT
    ofstream ofs("./in_out/output.txt");
    cout.rdbuf(ofs.rdbuf());
#endif
    solve();
    cout << flush;
    return 0;
}
            
            
            
        
            
scol_kp