結果
問題 | No.1308 ジャンプビーコン |
ユーザー | fuppy_kyopro |
提出日時 | 2020-12-05 05:42:42 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,053 ms / 4,000 ms |
コード長 | 5,752 bytes |
コンパイル時間 | 2,974 ms |
コンパイル使用メモリ | 198,656 KB |
実行使用メモリ | 297,256 KB |
最終ジャッジ日時 | 2024-09-15 10:32:42 |
合計ジャッジ時間 | 21,792 ms |
ジャッジサーバーID (参考情報) |
judge6 / judge1 |
(要ログイン)
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 | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 3 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 3 ms
5,376 KB |
testcase_06 | AC | 3 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 5 ms
7,808 KB |
testcase_09 | AC | 5 ms
7,680 KB |
testcase_10 | AC | 5 ms
7,936 KB |
testcase_11 | AC | 6 ms
7,808 KB |
testcase_12 | AC | 5 ms
7,936 KB |
testcase_13 | AC | 38 ms
38,276 KB |
testcase_14 | AC | 37 ms
38,272 KB |
testcase_15 | AC | 37 ms
38,272 KB |
testcase_16 | AC | 37 ms
38,272 KB |
testcase_17 | AC | 36 ms
38,276 KB |
testcase_18 | AC | 935 ms
296,832 KB |
testcase_19 | AC | 917 ms
296,832 KB |
testcase_20 | AC | 881 ms
296,776 KB |
testcase_21 | AC | 876 ms
296,832 KB |
testcase_22 | AC | 891 ms
296,796 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 18 ms
27,648 KB |
testcase_25 | AC | 18 ms
27,648 KB |
testcase_26 | AC | 860 ms
296,948 KB |
testcase_27 | AC | 844 ms
296,832 KB |
testcase_28 | AC | 847 ms
296,828 KB |
testcase_29 | AC | 897 ms
297,216 KB |
testcase_30 | AC | 899 ms
297,216 KB |
testcase_31 | AC | 608 ms
297,216 KB |
testcase_32 | AC | 994 ms
297,256 KB |
testcase_33 | AC | 1,053 ms
297,216 KB |
testcase_34 | AC | 881 ms
296,832 KB |
testcase_35 | AC | 878 ms
296,732 KB |
testcase_36 | AC | 805 ms
296,924 KB |
testcase_37 | AC | 812 ms
296,832 KB |
testcase_38 | AC | 1,028 ms
296,960 KB |
testcase_39 | AC | 1,027 ms
296,832 KB |
ソースコード
//* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> using namespace std; // using namespace atcoder; #define DEBUG(x) cerr<<#x<<": "<<x<<endl; #define DEBUG_VEC(v) cerr<<#v<<":";for(int i=0;i<v.size();i++) cerr<<" "<<v[i]; cerr<<endl; #define DEBUG_MAT(v) cerr<<#v<<endl;for(int i=0;i<v.size();i++){for(int j=0;j<v[i].size();j++) {cerr<<v[i][j]<<" ";}cerr<<endl;} typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector< vector<int> > #define vll vector< vector<ll> > #define vs vector<string> #define pii pair<int,int> #define pis pair<int,string> #define psi pair<string,int> #define pll pair<ll,ll> template<class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template<class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template<class S, class T> ostream& operator<<(ostream& os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i,n) for(int i=0;i<(int)(n);i++) #define rep1(i,n) for(int i=1;i<=(int)(n);i++) #define rrep(i,n) for(int i=(int)(n)-1;i>=0;i--) #define rrep1(i,n) for(int i=(int)(n);i>0;i--) #define REP(i,a,b) for(int i=a;i<b;i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(),c.end() void YES(bool t=true) {cout<<(t?"YES":"NO")<<endl;} void Yes(bool t=true) {cout<<(t?"Yes":"No")<<endl;} void yes(bool t=true) {cout<<(t?"yes":"no")<<endl;} void NO(bool t=true) {cout<<(t?"NO":"YES")<<endl;} void No(bool t=true) {cout<<(t?"No":"Yes")<<endl;} void no(bool t=true) {cout<<(t?"no":"yes")<<endl;} 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 (a>b) { a = b; return 1; } return 0; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; #define Sp(p) cout<<setprecision(25)<< fixed<<p<<endl; // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 1, 0, -1}, dy = {-1, 0, 1, 0}; vi dx2 = { 1,1,0,-1,-1,-1,0,1 }, dy2 = { 0,1,1,1,0,-1,-1,-1 }; #define fio() cin.tie(0); ios::sync_with_stdio(false); // const ll MOD = 1000000007; const ll MOD = 998244353; // #define mp make_pair //#define endl '\n' const int N = 3001; vector<vector<pll>> G(N); ll dist[N][N]; ll dp[2][N][N]; vll path(N); void dfs(int now, int par, int root, ll sum) { dist[root][now] = sum; for (pll temp: G[now]) { if (temp.first == par) continue; dfs(temp.first, now, root, sum + temp.second); } path[root].push_back(now); } signed main() { fio(); ll n, q, c; cin >> n >> q >> c; rep (i, n - 1) { int u, v, l; cin >> u >> v >> l; u--; v--; G[u].push_back(pll(v, l)); G[v].push_back(pll(u, l)); } rep (i, n) { dfs(i, -1, i, 0); } vector<short> x(q); rep (i, q) { cin >> x[i]; x[i]--; } rep (i, 2) rep (j, q) rep (k, n) dp[i][j][k] = INF; dp[1][0][x[0]] = 0; // using P = pair<ll, array<short, 3>>; // priority_queue<P, vector<P>, greater<P>> pq; // pq.push(P(0, {1, 0, x[0]})); rep (i, q - 1) { rep (k, 2) { for (int j: path[x[i + 1]]) { ll cost = dp[k][i][j]; if (k == 0) { short ni = i, nj = j, nk = 1; if (dp[nk][ni][nj] > cost + c) { dp[nk][ni][nj] = cost + c; } ni = i + 1, nj = j, nk = 0; if (dp[nk][ni][nj] > cost + dist[x[i]][x[i + 1]]) { dp[nk][ni][nj] = cost + dist[x[i]][x[i + 1]]; } } if (k == 1) { short ni = i + 1, nj = j, nk = 0; if (dp[nk][ni][nj] > cost + dist[j][x[i + 1]]) { dp[nk][ni][nj] = cost + dist[j][x[i + 1]]; // pq.push(P(dp[nk][ni][nj], {nk, ni, nj})); } if (j == x[i + 1]) { short ni = i + 1, nj = j, nk = 1; if (dp[nk][ni][nj] > cost) { dp[nk][ni][nj] = cost; // pq.push(P(dp[nk][ni][nj], {nk, ni, nj})); } } for (pll temp: G[j]) { short ni = i, nj = temp.first, nk = 1; if (dist[nj][x[i + 1]] > dist[j][x[i + 1]]) continue; if (dp[nk][ni][nj] > cost + temp.second) { dp[nk][ni][nj] = cost + temp.second; // pq.push(P(dp[nk][ni][nj], {nk, ni, nj})); } } } } } } // while (pq.size()) { // P temp = pq.top(); // pq.pop(); // ll cost = temp.first; // short i = temp.second[1], j = temp.second[2], k = temp.second[0]; // if (i == q - 1) continue; // if (dp[k][i][j] < cost) continue; // if (k == 0) { // } // if (k == 1) { // } // } ll ans = INF; rep (k, 2) { rep (j, n) { chmin(ans, dp[k][q - 1][j]); } } cout << ans << endl; }