結果
問題 | No.1812 Uribo Road |
ユーザー | kaikey |
提出日時 | 2022-01-14 22:30:34 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 127 ms / 5,000 ms |
コード長 | 5,972 bytes |
コンパイル時間 | 3,589 ms |
コンパイル使用メモリ | 241,348 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-20 12:08:42 |
合計ジャッジ時間 | 5,577 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 11 ms
6,820 KB |
testcase_04 | AC | 3 ms
6,816 KB |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | AC | 2 ms
6,820 KB |
testcase_07 | AC | 3 ms
6,816 KB |
testcase_08 | AC | 3 ms
6,816 KB |
testcase_09 | AC | 5 ms
6,820 KB |
testcase_10 | AC | 3 ms
6,820 KB |
testcase_11 | AC | 3 ms
6,816 KB |
testcase_12 | AC | 61 ms
6,816 KB |
testcase_13 | AC | 39 ms
6,816 KB |
testcase_14 | AC | 35 ms
6,816 KB |
testcase_15 | AC | 38 ms
6,816 KB |
testcase_16 | AC | 32 ms
6,816 KB |
testcase_17 | AC | 98 ms
6,816 KB |
testcase_18 | AC | 38 ms
6,816 KB |
testcase_19 | AC | 126 ms
6,820 KB |
testcase_20 | AC | 127 ms
6,820 KB |
testcase_21 | AC | 106 ms
6,820 KB |
testcase_22 | AC | 87 ms
6,816 KB |
testcase_23 | AC | 7 ms
6,816 KB |
testcase_24 | AC | 2 ms
6,816 KB |
testcase_25 | AC | 16 ms
6,816 KB |
testcase_26 | AC | 3 ms
6,816 KB |
testcase_27 | AC | 23 ms
6,820 KB |
testcase_28 | AC | 28 ms
6,820 KB |
testcase_29 | AC | 2 ms
6,820 KB |
testcase_30 | AC | 5 ms
6,816 KB |
testcase_31 | AC | 74 ms
6,816 KB |
testcase_32 | AC | 4 ms
6,816 KB |
testcase_33 | AC | 29 ms
6,820 KB |
ソースコード
#include "bits/stdc++.h" #include <random> #include <chrono> #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define ALL(x) (x).begin(), (x).end() #define RALL(x) (x).rbegin(), (x).rend() #define SZ(x) ((lint)(x).size()) #define FOR(i, begin, end) for(lint i=(begin),i##_end_=(end);i<i##_end_;++i) #define IFOR(i, begin, end) for(lint i=(end)-1,i##_begin_=(begin);i>=i##_begin_;--i) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) #define endk '\n' using namespace std; typedef unsigned long long _ulong; typedef long long int lint; typedef long double ld; typedef pair<lint, lint> plint; typedef pair<ld, ld> pld; struct fast_ios { fast_ios() { cin.tie(nullptr), ios::sync_with_stdio(false), cout << fixed << setprecision(10); }; } fast_ios_; template<class T> auto add = [](T a, T b) -> T { return a + b; }; template<class T> auto mul = [](T a, T b) -> T { return a * b; }; template<class T> auto f_max = [](T a, T b) -> T { return max(a, b); }; template<class T> auto f_min = [](T a, T b) -> T { return min(a, b); }; template<class T> using V = vector<T>; using Vl = V<lint>; using VVl = V<Vl>; using VVVl = V<V<Vl>>; template< typename T > ostream& operator<<(ostream& os, const vector< T >& v) { for (int i = 0; i < (int)v.size(); i++) os << v[i] << (i + 1 != v.size() ? " " : ""); return os; } template< typename T >istream& operator>>(istream& is, vector< T >& v) { for (T& in : v) is >> in; return is; } template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } template <class T> T div_floor(T a, T b) { if (b < 0) a *= -1, b *= -1; return a >= 0 ? a / b : (a + 1) / b - 1; } template <class T> T div_ceil(T a, T b) { if (b < 0) a *= -1, b *= -1; return a > 0 ? (a - 1) / b + 1 : a / b; } template <class F> struct rec { F f; rec(F&& f_) : f(std::forward<F>(f_)) {} template <class... Args> auto operator()(Args &&... args) const { return f(*this, std::forward<Args>(args)...); } }; lint gcd(lint a, lint b) { if (b == 0) return a; else return gcd(b, a % b); } lint digit(lint a) { return (lint)log10(a); } lint e_dist(plint a, plint b) { return abs(a.first - b.first) * abs(a.first - b.first) + abs(a.second - b.second) * abs(a.second - b.second); } lint m_dist(plint a, plint b) { return abs(a.first - b.first) + abs(a.second - b.second); } bool check_overflow(lint a, lint b, lint limit) { if (b == 0) return false; return a >= limit / b; } // a * b > c => true void Worshall_Floyd(VVl& g) { REP(k, SZ(g)) REP(i, SZ(g)) REP(j, SZ(g)) chmin(g[i][j], g[i][k] + g[k][j]); } const lint MOD1000000007 = 1000000007, MOD998244353 = 998244353, INF = 2e18; lint dx[8] = { 0, -1, 0, 1, 1, -1, 1, -1 }, dy[8] = { -1, 0, 1, 0, -1, -1, 1, 1 }; bool YN(bool flag) { cout << (flag ? "YES" : "NO") << endk; return flag; } bool yn(bool flag) { cout << (flag ? "Yes" : "No") << endk; return flag; } struct Edge { lint from, to; lint cost; Edge() { } Edge(lint u, lint v, lint c) { cost = c; from = u; to = v; } bool operator<(const Edge& e) const { return cost < e.cost; } }; struct WeightedEdge { lint to; lint cost; WeightedEdge(lint v, lint c = 1) { to = v; cost = c; } bool operator<(const WeightedEdge& e) const { return cost < e.cost; } }; using WeightedGraph = V<V<WeightedEdge>>; typedef pair<plint, lint> tlint; typedef pair<ld, ld> pld; typedef pair<lint, tlint> qlint; typedef pair<string, lint> valstr; typedef pair<Vl, lint> valv; Vl Dijkstra(WeightedGraph& g, int s) { Vl dist(SZ(g), INF); deque<bool> visited(SZ(g), false); priority_queue<plint> que; que.push({ 0, s }); dist[s] = 0; while (!que.empty()) { plint curr = que.top(); que.pop(); if (visited[curr.second]) continue; visited[curr.second] = true; if (dist[curr.second] < curr.first) continue; for (auto nxt : g[curr.second]) { if (visited[nxt.to]) continue; if (dist[nxt.to] > dist[curr.second] + nxt.cost) { dist[nxt.to] = dist[curr.second] + nxt.cost; que.emplace(-dist[nxt.to], nxt.to); } } } return dist; } int main() { lint N, M, K; cin >> N >> M >> K; Vl arr(K); cin >> arr; lint base_sum = 0; set<lint> st; REP(i, K) st.insert(arr[i] - 1); WeightedGraph g(N); V<plint> ps; set<lint> sts; REP(i, M) { lint u, v, c; cin >> u >> v >> c; u--; v--; if (u > v) swap(u, v); if (st.count(i)) { base_sum += c; ps.push_back({ u, v }); sts.insert(u); sts.insert(v); } g[u].push_back({ v, c }); g[v].push_back({ u, c }); } map<lint, lint> fx; for (lint v : sts) fx[v] = SZ(fx); VVl dist(SZ(fx), Vl(SZ(fx))); for (lint v : sts) { auto _dist = Dijkstra(g, v); for (lint _v : sts) { dist[fx[v]][fx[_v]] = _dist[_v]; } } auto s = Dijkstra(g, 0), t = Dijkstra(g, N - 1); VVl dp(1 << K, Vl(SZ(fx), INF)); REP(i, K) { auto [u, v] = ps[i]; dp[1 << i][fx[v]] = s[u]; dp[1 << i][fx[u]] = s[v]; } REP(mask, 1 << K) { REP(i, SZ(fx)) { REP(j, K) { if (mask >> j & 1) continue; auto [u, v] = ps[j]; chmin(dp[mask | (1 << j)][fx[v]], dp[mask][i] + dist[i][fx[u]]); chmin(dp[mask | (1 << j)][fx[u]], dp[mask][i] + dist[i][fx[v]]); } } } lint minv = INF; REP(i, K) { auto [u, v] = ps[i]; chmin(minv, dp[(1 << K) - 1][fx[u]] + t[u] + base_sum); chmin(minv, dp[(1 << K) - 1][fx[v]] + t[v] + base_sum); } cout << minv << endk; }