結果
問題 | No.1320 Two Type Min Cost Cycle |
ユーザー | Slephy |
提出日時 | 2023-07-02 03:23:02 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 735 ms / 2,000 ms |
コード長 | 3,470 bytes |
コンパイル時間 | 2,489 ms |
コンパイル使用メモリ | 219,264 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-08 13:51:26 |
合計ジャッジ時間 | 9,239 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 16 ms
5,376 KB |
testcase_08 | AC | 25 ms
5,376 KB |
testcase_09 | AC | 735 ms
5,376 KB |
testcase_10 | AC | 23 ms
5,376 KB |
testcase_11 | AC | 352 ms
5,376 KB |
testcase_12 | AC | 64 ms
5,376 KB |
testcase_13 | AC | 168 ms
5,376 KB |
testcase_14 | AC | 13 ms
5,376 KB |
testcase_15 | AC | 23 ms
5,376 KB |
testcase_16 | AC | 13 ms
5,376 KB |
testcase_17 | AC | 7 ms
5,376 KB |
testcase_18 | AC | 7 ms
5,376 KB |
testcase_19 | AC | 70 ms
5,376 KB |
testcase_20 | AC | 4 ms
5,376 KB |
testcase_21 | AC | 369 ms
5,376 KB |
testcase_22 | AC | 1 ms
5,376 KB |
testcase_23 | AC | 1 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 1 ms
5,376 KB |
testcase_26 | AC | 2 ms
5,376 KB |
testcase_27 | AC | 2 ms
5,376 KB |
testcase_28 | AC | 12 ms
5,376 KB |
testcase_29 | AC | 91 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
testcase_31 | AC | 15 ms
5,376 KB |
testcase_32 | AC | 1 ms
5,376 KB |
testcase_33 | AC | 189 ms
5,376 KB |
testcase_34 | AC | 120 ms
5,376 KB |
testcase_35 | AC | 4 ms
5,376 KB |
testcase_36 | AC | 21 ms
5,376 KB |
testcase_37 | AC | 3 ms
5,376 KB |
testcase_38 | AC | 8 ms
5,376 KB |
testcase_39 | AC | 4 ms
5,376 KB |
testcase_40 | AC | 2 ms
5,376 KB |
testcase_41 | AC | 2 ms
5,376 KB |
testcase_42 | AC | 2 ms
5,376 KB |
testcase_43 | AC | 24 ms
5,376 KB |
testcase_44 | AC | 10 ms
5,376 KB |
testcase_45 | AC | 653 ms
5,376 KB |
testcase_46 | AC | 13 ms
5,376 KB |
testcase_47 | AC | 182 ms
5,376 KB |
testcase_48 | AC | 75 ms
5,376 KB |
testcase_49 | AC | 11 ms
5,376 KB |
testcase_50 | AC | 2 ms
5,376 KB |
testcase_51 | AC | 1 ms
5,376 KB |
testcase_52 | AC | 38 ms
5,376 KB |
testcase_53 | AC | 15 ms
5,376 KB |
testcase_54 | AC | 106 ms
5,376 KB |
testcase_55 | AC | 111 ms
5,376 KB |
testcase_56 | AC | 104 ms
5,376 KB |
testcase_57 | AC | 489 ms
5,376 KB |
testcase_58 | AC | 518 ms
5,376 KB |
testcase_59 | AC | 486 ms
5,376 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; constexpr int INF = (int)1e9 + 1001010; constexpr ll llINF = (ll)4e18 + 22000020; const string endn = "\n"; template <class T> inline vector<vector<T>> vector2(size_t i, size_t j, const T &init = T()) {return vector<vector<T>>(i, vector<T>(j, init));} const string ELEM_SEPARATION = " ", VEC_SEPARATION = endn; template<class T> istream& operator >>(istream &i, vector<T> &A) {for(auto &I : A) {i >> I;} return i;} template<class T> ostream& operator <<(ostream &o, const vector<vector<T>> &A) {int i=A.size(); for(auto &I : A){o << I << (--i ? VEC_SEPARATION : "");} return o;} template<class T> ostream& operator <<(ostream &o, const vector<T> &A) {int i=A.size(); for(auto &I : A){o << I << (--i ? ELEM_SEPARATION : "");} return o;} template<class T> vector<T>& operator ++(vector<T> &A, int n) {for(auto &I : A) {I++;} return A;} template<class T> vector<T>& operator --(vector<T> &A, int n) {for(auto &I : A) {I--;} return A;} template<class T, class U> bool chmax(T &a, const U &b) {return ((a < b) ? (a = b, true) : false);} template<class T, class U> bool chmin(T &a, const U &b) {return ((a > b) ? (a = b, true) : false);} ll floor(ll a, ll b) {assert(b != 0); return((a%b != 0 && ((a>0) != (b>0))) ? a/b-1 : a/b);} ll ceil (ll a, ll b) {assert(b != 0); return((a%b != 0 && ((a>0) == (b>0))) ? a/b+1 : a/b);} // ================================== ここまでテンプレ ================================== template<class T> using priority_queue_greater = priority_queue<T, vector<T>, greater<T>>; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); int t; cin >> t; int n, m; cin >> n >> m; auto edges = vector2<pair<int, ll>>(n, 0); for(int i = 0; i < m; i++){ int u, v, w; cin >> u >> v >> w; u--; v--; edges[u].emplace_back(v, w); if(t == 0) edges[v].emplace_back(u, w); } auto solve = [&](int root) -> ll { // rootを根とする最短路木を作る vector<ll> distance(n, llINF); vector<int> label(n); { priority_queue_greater<tuple<ll, int, int>> pq; // {dist, vIndex} pq.emplace(0, root, root); while(!pq.empty()){ auto [d, now, pre] = pq.top(); pq.pop(); if(distance[now] < d) continue; distance[now] = d; if(pre == root) label[now] = now; else label[now] = label[pre]; for(auto [nxt, cost] : edges[now]){ pq.emplace(d+cost, nxt, now); } } } // 最短閉路を見つける ll ret = llINF; for(int from = 0; from < n; from++){ if(from == root) continue; for(auto [to, cost] : edges[from]){ if(t == 0){ if(label[from] == label[to]) continue; if(to == root && label[from] == from) continue; else chmin(ret, distance[from] + distance[to] + cost); } if(t == 1){ if(to != root) continue; else chmin(ret, distance[from] + cost); } } } return ret; }; ll ans = llINF; for(int i = 0; i < n; i++){ auto s = solve(i); chmin(ans, s); } if(ans == llINF) cout << -1 << endl; else cout << ans << endl; return 0; }