結果
問題 | No.1950 片道きゃっちぼーる |
ユーザー | auaua |
提出日時 | 2022-05-20 22:50:10 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,534 ms / 3,000 ms |
コード長 | 4,969 bytes |
コンパイル時間 | 2,342 ms |
コンパイル使用メモリ | 200,920 KB |
実行使用メモリ | 148,876 KB |
最終ジャッジ日時 | 2024-09-20 09:12:29 |
合計ジャッジ時間 | 19,248 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
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 705 ms
106,204 KB |
testcase_04 | AC | 742 ms
137,772 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 553 ms
79,764 KB |
testcase_07 | AC | 961 ms
148,876 KB |
testcase_08 | AC | 1,534 ms
148,500 KB |
testcase_09 | AC | 745 ms
105,008 KB |
testcase_10 | AC | 715 ms
101,644 KB |
testcase_11 | AC | 822 ms
101,532 KB |
testcase_12 | AC | 731 ms
101,696 KB |
testcase_13 | AC | 640 ms
74,628 KB |
testcase_14 | AC | 540 ms
52,100 KB |
testcase_15 | AC | 1,238 ms
115,400 KB |
testcase_16 | AC | 569 ms
63,692 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 859 ms
127,476 KB |
testcase_19 | AC | 1,185 ms
112,884 KB |
testcase_20 | AC | 820 ms
101,516 KB |
testcase_21 | AC | 564 ms
58,364 KB |
testcase_22 | AC | 564 ms
58,120 KB |
ソースコード
#include<bits/stdc++.h> using namespace std; #include <unordered_set> #include <random> //#define int long long #define REP(i,m,n) for(int i=(m);i<(n);i++) #define rep(i,n) REP(i,0,n) #define pb push_back #define all(a) a.begin(),a.end() #define rall(c) (c).rbegin(),(c).rend() #define mp make_pair #define endl '\n' //#define vec vector<ll> //#define mat vector<vector<ll> > #define fi first #define se second #define double long double typedef long long ll; typedef unsigned long long ull; typedef pair<ll,ll> pll; //typedef long double ld; typedef complex<double> Complex; const ll INF=1e9+7; const ll MOD=998244353; const ll inf=INF*INF; const ll mod=INF; const ll MAX=200010; const double PI=acos(-1.0); typedef vector<vector<ll> > mat; typedef vector<ll> vec; ll dx[]={0,1,0,-1}; ll dy[]={1,0,-1,0}; namespace internal { template <class E> struct csr { std::vector<int> start; std::vector<E> elist; csr(int n, const std::vector<std::pair<int, E>>& edges) : start(n + 1), elist(edges.size()) { for (auto e : edges) { start[e.first + 1]++; } for (int i = 1; i <= n; i++) { start[i] += start[i - 1]; } auto counter = start; for (auto e : edges) { elist[counter[e.first]++] = e.second; } } }; // Reference: // R. Tarjan, // Depth-First Search and Linear Graph Algorithms struct scc_graph { public: scc_graph(int n) : _n(n) {} int num_vertices() { return _n; } void add_edge(int from, int to) { edges.push_back({from, {to}}); } // @return pair of (# of scc, scc id) std::pair<int, std::vector<int>> scc_ids() { auto g = csr<edge>(_n, edges); int now_ord = 0, group_num = 0; std::vector<int> visited, low(_n), ord(_n, -1), ids(_n); visited.reserve(_n); auto dfs = [&](auto self, int v) -> void { low[v] = ord[v] = now_ord++; visited.push_back(v); for (int i = g.start[v]; i < g.start[v + 1]; i++) { auto to = g.elist[i].to; if (ord[to] == -1) { self(self, to); low[v] = std::min(low[v], low[to]); } else { low[v] = std::min(low[v], ord[to]); } } if (low[v] == ord[v]) { while (true) { int u = visited.back(); visited.pop_back(); ord[u] = _n; ids[u] = group_num; if (u == v) break; } group_num++; } }; for (int i = 0; i < _n; i++) { if (ord[i] == -1) dfs(dfs, i); } for (auto& x : ids) { x = group_num - 1 - x; } return {group_num, ids}; } std::vector<std::vector<int>> scc() { auto ids = scc_ids(); int group_num = ids.first; std::vector<int> counts(group_num); for (auto x : ids.second) counts[x]++; std::vector<std::vector<int>> groups(ids.first); for (int i = 0; i < group_num; i++) { groups[i].reserve(counts[i]); } for (int i = 0; i < _n; i++) { groups[ids.second[i]].push_back(i); } return groups; } private: int _n; struct edge { int to; }; std::vector<std::pair<int, edge>> edges; }; } struct scc_graph { public: scc_graph() : internal(0) {} scc_graph(int n) : internal(n) {} void add_edge(int from, int to) { int n = internal.num_vertices(); assert(0 <= from && from < n); assert(0 <= to && to < n); internal.add_edge(from, to); } std::vector<std::vector<int>> scc() { return internal.scc(); } private: internal::scc_graph internal; }; void solve(){ ll N;cin>>N; vector<ll>X(N),A(N); rep(i,N)cin>>X[i]; rep(i,N)cin>>A[i]; set<ll>st; rep(i,N){ st.insert(X[i]); st.insert(X[i]-A[i]); st.insert(X[i]+A[i]); } map<ll,ll>idx; ll m=0; for(auto e:st){ idx[e]=m; m++; } scc_graph G(m); vector<vector<ll> >G2(m); rep(i,N){ G.add_edge(idx[X[i]+A[i]],idx[X[i]]); G.add_edge(idx[X[i]-A[i]],idx[X[i]]); G2[idx[X[i]+A[i]]].pb(idx[X[i]]); G2[idx[X[i]-A[i]]].pb(idx[X[i]]); } auto f=G.scc(); vector<ll>ma(m); for(auto e:st){ ma[idx[e]]=e; } vector<ll>used(m); rep(i,f.size()){ ll maa=0; rep(j,f[i].size()){ maa=max(maa,ma[f[i][j]]); used[f[i][j]]=1; } rep(j,f[i].size()){ ma[f[i][j]]=maa; for(auto e:G2[f[i][j]]){ ma[e]=max(ma[e],maa); } } } rep(i,N){ cout<<ma[idx[X[i]]]-X[i]<<endl; } } signed main(){ cin.tie(0); ios::sync_with_stdio(false); solve(); }