結果
問題 | No.2360 Path to Integer |
ユーザー | momohara |
提出日時 | 2024-08-11 20:27:48 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 181 ms / 2,500 ms |
コード長 | 4,969 bytes |
コンパイル時間 | 5,547 ms |
コンパイル使用メモリ | 324,548 KB |
実行使用メモリ | 57,600 KB |
最終ジャッジ日時 | 2024-08-11 20:27:56 |
合計ジャッジ時間 | 8,203 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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
5,248 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 | 1 ms
5,376 KB |
testcase_05 | AC | 1 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 12 ms
6,144 KB |
testcase_09 | AC | 134 ms
30,236 KB |
testcase_10 | AC | 108 ms
32,584 KB |
testcase_11 | AC | 111 ms
32,328 KB |
testcase_12 | AC | 85 ms
30,616 KB |
testcase_13 | AC | 135 ms
30,408 KB |
testcase_14 | AC | 160 ms
52,480 KB |
testcase_15 | AC | 138 ms
30,324 KB |
testcase_16 | AC | 181 ms
57,600 KB |
ソースコード
#include <atcoder/all> #include <bits/stdc++.h> using namespace std; using namespace atcoder; #ifdef DEBUG #include "debug/all.hpp" #else #define debug(...) 42 #endif using ll = long long; using ull = unsigned long long; using ld = long double; using P = pair<ll, ll>; using tp = tuple<ll, ll, ll>; template <class T> using vec = vector<T>; template <class T> using vvec = vector<vec<T>>; #define all(hoge) (hoge).begin(), (hoge).end() #define en '\n' #define rep(i, m, n) for(ll i = (ll)(m); i < (ll)(n); ++i) #define rep2(i, m, n) for(ll i = (ll)(n)-1; i >= (ll)(m); --i) #define REP(i, n) rep(i, 0, n) #define REP2(i, n) rep2(i, 0, n) constexpr long long INF = 1LL << 60; constexpr int INF_INT = 1 << 30; // constexpr long long MOD = (ll)1e9 + 7; constexpr long long MOD = 998244353LL; static const ld pi = 3.141592653589793L; template <class T> inline bool chmin(T &a, T b) { if(a > b) { a = b; return true; } return false; } template <class T> inline bool chmax(T &a, T b) { if(a < b) { a = b; return true; } return false; } struct Edge { int to, rev; ll cap; Edge(int _to, int _rev, ll _cap) : to(_to), rev(_rev), cap(_cap) {} }; typedef vector<Edge> Edges; typedef vector<Edges> Graph; void add_edge(Graph &G, int from, int to, ll cap, bool revFlag, ll revCap) { G[from].push_back(Edge(to, (int)G[to].size(), cap)); if(revFlag) G[to].push_back(Edge(from, (int)G[from].size() - 1, revCap)); } template <typename E, typename F, typename PE, typename PV> class RerootingDP { private: int n; E id; F merge; PE put_edge; PV put_vertex; Graph g; vector<E> subdp; vector<E> dp; public: vector<E> ans; RerootingDP(Graph _g, E _id, F f, PE pe, PV pv, int root = 0) : n(_g.size()), g(_g), id(_id), merge(f), put_edge(pe), put_vertex(pv), subdp(n, _id), dp(n, _id), ans(n, _id) { build(root); reroot(root); } void build(int root) { auto dfs = [&](auto &&self, int v, int p) -> void { E val = id; for(auto e : g[v]) { if(e.to == p) continue; self(self, e.to, v); E nval = put_edge(subdp[e.to], e); val = merge(val, nval); } subdp[v] = put_vertex(val, v); }; dfs(dfs, root, -1); } void reroot(int root) { auto dfs = [&](auto &&self, int v, int p, E pval) -> void { vec<E> as; for(auto e : g[v]) { if(e.to == p) { as.push_back(put_edge(pval, e)); } else { as.push_back(put_edge(subdp[e.to], e)); } } vec<E> al(as.size(), as[0]); REP(i, as.size() - 1) { al[i + 1] = merge(as[i + 1], al[i]); } vec<E> ar(as.size(), as.back()); REP2(i, as.size() - 1) { ar[i] = merge(as[i], ar[i + 1]); } dp[v] = merge(dp[v], put_vertex(al.back(), v)); ans[v] = dp[v]; int k = 0; for(auto e : g[v]) { if(e.to == p) { k++; continue; } E val = id; if(k - 1 >= 0) val = merge(val, al[k - 1]); if(k + 1 < ar.size()) val = merge(val, ar[k + 1]); val = put_vertex(val, v); self(self, e.to, v, val); k++; } }; dfs(dfs, root, -1, id); } }; void solve() { ll n; cin >> n; vec<string> a(n); REP(i, n) { cin >> a[i]; } Graph g(n); REP(i, n - 1) { int u, v; cin >> u >> v; u--; v--; add_edge(g, u, v, 1, true, 1); } using mint = modint998244353; struct S { mint sum; mint con; S(mint _sum, mint _con) : sum(_sum), con(_con) {} S() : sum(0), con(0) {} }; S id = S(); auto merge = [](S a, S b) -> S { return S(a.sum + b.sum, a.con + b.con); }; auto put_edge = [](S val, Edge e) { return val; }; auto put_vertex = [&](S val, int v) { // cout << v << ":" << val.sum.val() << " " << val.con.val() << en; mint con = val.con + 1; mint sum = val.sum * mint(10).pow(a[v].size()) + con * stoll(a[v]); // cout << sum.val() << " " << con.val() << en; return S(sum, con); }; RerootingDP rdp(g, id, merge, put_edge, put_vertex); auto dp = rdp.ans; mint ans = 0; for(auto i : dp) { ans += i.sum; } cout << ans.val() << en; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); // cout << fixed << setprecision(10); // ll t; // cin >> t; // REP(i, t - 1) { // solve(); // } solve(); return 0; }