結果
問題 | No.1308 ジャンプビーコン |
ユーザー | 沙耶花 |
提出日時 | 2020-12-05 13:34:16 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 9,255 bytes |
コンパイル時間 | 3,587 ms |
コンパイル使用メモリ | 244,068 KB |
実行使用メモリ | 14,016 KB |
最終ジャッジ日時 | 2024-09-15 17:05:49 |
合計ジャッジ時間 | 11,679 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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
10,624 KB |
testcase_01 | AC | 2 ms
5,248 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 | 2 ms
5,376 KB |
testcase_08 | AC | 6 ms
5,376 KB |
testcase_09 | AC | 6 ms
5,376 KB |
testcase_10 | AC | 7 ms
5,376 KB |
testcase_11 | AC | 7 ms
5,376 KB |
testcase_12 | AC | 7 ms
5,376 KB |
testcase_13 | AC | 516 ms
5,376 KB |
testcase_14 | AC | 494 ms
5,376 KB |
testcase_15 | AC | 508 ms
5,376 KB |
testcase_16 | AC | 499 ms
5,376 KB |
testcase_17 | AC | 502 ms
5,376 KB |
testcase_18 | TLE | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
コンパイルメッセージ
main.cpp:224:33: warning: use of 'auto' in parameter declaration only available with '-std=c++20' or '-fconcepts' 224 | vector<long long> get(int start,auto &E){ | ^~~~
ソースコード
#include <stdio.h> #include <bits/stdc++.h> #include <algorithm> #ifdef _MSC_VER #include <intrin.h> #endif namespace atcoder { namespace internal { // @param n `0 <= n` // @return minimum non-negative `x` s.t. `n <= 2**x` int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } // @param n `1 <= n` // @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0` int bsf(unsigned int n) { #ifdef _MSC_VER unsigned long index; _BitScanForward(&index, n); return index; #else return __builtin_ctz(n); #endif } } // namespace internal } // namespace atcoder #include <cassert> #include <iostream> #include <vector> namespace atcoder { template <class S, S (*op)(S, S), S (*e)(), class F, S (*mapping)(F, S), F (*composition)(F, F), F (*id)()> struct lazy_segtree { public: lazy_segtree() : lazy_segtree(0) {} lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {} lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) { log = internal::ceil_pow2(_n); size = 1 << log; d = std::vector<S>(2 * size, e()); lz = std::vector<F>(size, id()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); return d[p]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); if (l == r) return e(); l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push(r >> i); } S sml = e(), smr = e(); while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } void apply(int p, F f) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = mapping(f, d[p]); for (int i = 1; i <= log; i++) update(p >> i); } void apply(int l, int r, F f) { assert(0 <= l && l <= r && r <= _n); if (l == r) return; l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push((r - 1) >> i); } { int l2 = l, r2 = r; while (l < r) { if (l & 1) all_apply(l++, f); if (r & 1) all_apply(--r, f); l >>= 1; r >>= 1; } l = l2; r = r2; } for (int i = 1; i <= log; i++) { if (((l >> i) << i) != l) update(l >> i); if (((r >> i) << i) != r) update((r - 1) >> i); } } template <bool (*g)(S)> int max_right(int l) { return max_right(l, [](S x) { return g(x); }); } template <class G> int max_right(int l, G g) { assert(0 <= l && l <= _n); assert(g(e())); if (l == _n) return _n; l += size; for (int i = log; i >= 1; i--) push(l >> i); S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!g(op(sm, d[l]))) { while (l < size) { push(l); l = (2 * l); if (g(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template <bool (*g)(S)> int min_left(int r) { return min_left(r, [](S x) { return g(x); }); } template <class G> int min_left(int r, G g) { assert(0 <= r && r <= _n); assert(g(e())); if (r == 0) return 0; r += size; for (int i = log; i >= 1; i--) push((r - 1) >> i); S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!g(op(d[r], sm))) { while (r < size) { push(r); r = (2 * r + 1); if (g(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector<S> d; std::vector<F> lz; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } void all_apply(int k, F f) { d[k] = mapping(f, d[k]); if (k < size) lz[k] = composition(f, lz[k]); } void push(int k) { all_apply(2 * k, lz[k]); all_apply(2 * k + 1, lz[k]); lz[k] = id(); } }; } // namespace atcoder using namespace atcoder; using namespace std; #define rep(i,n) for (int i = 0; i < (n); ++i) #define Inf 1000000000000000 vector<long long> get(int start,auto &E){ vector<long long> dis(E.size(),Inf); dis[start] = 0; queue<int> Q; Q.push(start); while(Q.size()>0){ int u = Q.front(); Q.pop(); rep(i,E[u].size()){ int v = E[u][i].first; if(dis[v]!=Inf)continue; dis[v] = dis[u] + E[u][i].second; Q.push(v); } } return dis; } long long op(long long a,long long b){ return min(a,b); } long long e(){ return Inf; } long long mapping(long long a,long long b){ if(a==-1)return b; return a; } long long composition(long long a,long long b){ if(a==-1)return b; if(b==-1)return a; return a; } long long id(){ return -1; } struct HLD{ vector<int> sz,parent,depth,root,pos; vector<int> arr; HLD(vector<vector<int>> &E){ sz.resize(E.size(),1); parent.resize(E.size(),0); depth.resize(E.size(),0); root.resize(E.size(),0); pos.resize(E.size(),0); dfs(0,-1,E); dfs2(0,-1,E,0); } void dfs(int now,int p,vector<vector<int>> &E){ parent[now] = p; if(p==-1){ depth[now] = 0; } else{ depth[now] = depth[p]+1; } for(int i=0;i<E[now].size();i++){ int to = E[now][i]; if(to==p)continue; dfs(to,now,E); sz[now] += sz[to]; } } void dfs2(int now,int p,vector<vector<int>> &E,int r){ pos[now] = arr.size(); arr.push_back(now); root[now] = r; int maxi = 0; int ind = -1; for(int i=0;i<E[now].size();i++){ int to = E[now][i]; if(to==p)continue; if(maxi<sz[to]){ maxi = sz[to]; ind = to; } } if(ind==-1)return; dfs2(ind,now,E,r); for(int i=0;i<E[now].size();i++){ int to = E[now][i]; if(to==p||to==ind)continue; dfs2(to,now,E,to); } } vector<pair<int,int>> query(int u,int v){ vector<pair<int,int>> ret; int t = 0; while(root[u]!=root[v]){ if(depth[root[u]] <= depth[root[v]]){ ret.insert(ret.begin()+t,{pos[root[v]], pos[v]}); v = parent[root[v]]; } else{ ret.insert(ret.begin()+t,{pos[u],pos[root[u]]}); u = parent[root[u]]; t++; } } ret.insert(ret.begin()+t,{pos[u],pos[v]}); return ret; } int lca(int u,int v){ for(;;v=parent[root[v]]){ if(pos[u]>pos[v])swap(u,v); if(root[u]==root[v])return u; } } int get_distance(int u,int v){ return depth[u] + depth[v] - 2 * depth[lca(u,v)]; } }; int main(){ int N,Q; long long C; cin>>N>>Q>>C; vector E(N,vector<pair<int,long long>>()); vector EE(N,vector<int>()); rep(i,N-1){ int u,v,l; cin>>u>>v>>l; u--;v--; E[u].emplace_back(v,l); E[v].emplace_back(u,l); EE[u].push_back(v); EE[v].push_back(u); } vector<int> x(Q); rep(i,Q){ cin>>x[i]; x[i]--; } vector dis(N,vector<long long>()); rep(i,N){ dis[i] = get(i,E); } HLD H(EE); lazy_segtree<long long,op,e,long long,mapping,composition,id> seg(N); seg.set(H.pos[x[0]],0LL); rep(i,Q-1){ lazy_segtree<long long,op,e,long long,mapping,composition,id> nseg(N); vector<pair<long long,int>> V; rep(j,N){ if(j==x[i]){ long long t = seg.get(H.pos[j])+dis[j][x[i+1]]; V.emplace_back(t,j); } else{ long long t = seg.get(H.pos[j])+dis[j][x[i+1]]+C; V.emplace_back(t,j); } V.emplace_back(seg.get(H.pos[j]) + min(dis[x[i]][x[i+1]],C+dis[j][x[i+1]]),-j-1); } sort(V.rbegin(),V.rend()); rep(j,V.size()){ long long t = V[j].first; if(t>=Inf)continue; int ind = V[j].second; if(ind<0){ ind++; ind *= -1; nseg.set(H.pos[ind],t); continue; } auto ret = H.query(ind,x[i+1]); for(auto &x:ret){ if(x.first>x.second)swap(x.first,x.second); nseg.apply(x.first,x.second+1,t); } } swap(seg,nseg); // cout<<seg.all_prod()<<endl; } cout<<seg.all_prod()<<endl; return 0; }