結果

問題 No.416 旅行会社
ユーザー ecottea
提出日時 2023-09-14 22:21:31
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 379 ms / 4,000 ms
コード長 7,550 bytes
コンパイル時間 3,582 ms
コンパイル使用メモリ 267,260 KB
最終ジャッジ日時 2025-02-16 22:28:24
ジャッジサーバーID
(参考情報)
judge1 / judge2
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ファイルパターン 結果
other AC * 21
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ソースコード

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プレゼンテーションモードにする

#ifndef HIDDEN_IN_VS //
//
#define _CRT_SECURE_NO_WARNINGS
//
#include <bits/stdc++.h>
using namespace std;
//
using ll = long long; // -2^63 2^63 = 9 * 10^18int -2^31 2^31 = 2 * 10^9
using pii = pair<int, int>; using pll = pair<ll, ll>; using pil = pair<int, ll>; using pli = pair<ll, int>;
using vi = vector<int>; using vvi = vector<vi>; using vvvi = vector<vvi>; using vvvvi = vector<vvvi>;
using vl = vector<ll>; using vvl = vector<vl>; using vvvl = vector<vvl>; using vvvvl = vector<vvvl>;
using vb = vector<bool>; using vvb = vector<vb>; using vvvb = vector<vvb>;
using vc = vector<char>; using vvc = vector<vc>; using vvvc = vector<vvc>;
using vd = vector<double>; using vvd = vector<vd>; using vvvd = vector<vvd>;
template <class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T>>;
using Graph = vvi;
//
const double PI = acos(-1);
const vi DX = { 1, 0, -1, 0 }; // 4
const vi DY = { 0, 1, 0, -1 };
int INF = 1001001001; ll INFL = 4004004003104004004LL; // (int)INFL = 1010931620;
double EPS = 1e-15;
//
struct fast_io { fast_io() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(18); } } fastIOtmp;
//
#define all(a) (a).begin(), (a).end()
#define sz(x) ((int)(x).size())
#define lbpos(a, x) (int)distance((a).begin(), std::lower_bound(all(a), x))
#define ubpos(a, x) (int)distance((a).begin(), std::upper_bound(all(a), x))
#define Yes(b) {cout << ((b) ? "Yes\n" : "No\n");}
#define rep(i, n) for(int i = 0, i##_len = int(n); i < i##_len; ++i) // 0 n-1
#define repi(i, s, t) for(int i = int(s), i##_end = int(t); i <= i##_end; ++i) // s t
#define repir(i, s, t) for(int i = int(s), i##_end = int(t); i >= i##_end; --i) // s t
#define repe(v, a) for(const auto& v : (a)) // a
#define repea(v, a) for(auto& v : (a)) // a
#define repb(set, d) for(int set = 0; set < (1 << int(d)); ++set) // d
#define repp(a) sort(all(a)); for(bool a##_perm = true; a##_perm; a##_perm = next_permutation(all(a))) // a
#define smod(n, m) ((((n) % (m)) + (m)) % (m)) // mod
#define uniq(a) {sort(all(a)); (a).erase(unique(all(a)), (a).end());} //
#define EXIT(a) {cout << (a) << endl; exit(0);} //
#define inQ(x, y, u, l, d, r) ((u) <= (x) && (l) <= (y) && (x) < (d) && (y) < (r)) //
//
template <class T> inline ll pow(T n, int k) { ll v = 1; rep(i, k) v *= n; return v; }
template <class T> inline bool chmax(T& M, const T& x) { if (M < x) { M = x; return true; } return false; } // true
    
template <class T> inline bool chmin(T& m, const T& x) { if (m > x) { m = x; return true; } return false; } // true
    
template <class T> inline T get(T set, int i) { return (set >> i) & T(1); }
//
template <class T, class U> inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }
template <class T> inline istream& operator>>(istream& is, vector<T>& v) { repea(x, v) is >> x; return is; }
template <class T> inline vector<T>& operator--(vector<T>& v) { repea(x, v) --x; return v; }
template <class T> inline vector<T>& operator++(vector<T>& v) { repea(x, v) ++x; return v; }
#endif //
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#ifdef _MSC_VER
#include "localACL.hpp"
#endif
//using mint = modint1000000007;
using mint = modint998244353;
//using mint = modint; // mint::set_mod(mod);
//using mint = static_modint<924844033>;
namespace atcoder {
inline istream& operator>>(istream& is, mint& x) { ll x_; is >> x_; x = x_; return is; }
inline ostream& operator<<(ostream& os, const mint& x) { os << x.val(); return os; }
}
using vm = vector<mint>; using vvm = vector<vm>; using vvvm = vector<vvm>; using vvvvm = vector<vvvm>;
#endif
#ifdef _MSC_VER // Visual Studio
#include "local.hpp"
#else // gcc
inline int popcount(int n) { return __builtin_popcount(n); }
inline int popcount(ll n) { return __builtin_popcountll(n); }
inline int lsb(int n) { return n != 0 ? __builtin_ctz(n) : -1; }
inline int lsb(ll n) { return n != 0 ? __builtin_ctzll(n) : -1; }
inline int msb(int n) { return n != 0 ? (31 - __builtin_clz(n)) : -1; }
inline int msb(ll n) { return n != 0 ? (63 - __builtin_clzll(n)) : -1; }
#define gcd __gcd
#define dump(...)
#define dumpel(v)
#define dump_list(v)
#define dump_mat(v)
#define input_from_file(f)
#define output_to_file(f)
#define Assert(b) { if (!(b)) while (1) cout << "OLE"; }
#endif
//
/*
* to :
* cost :
*/
struct WEdge {
// verify : https://judge.yosupo.jp/problem/shortest_path
int to; //
ll cost; //
WEdge() : to(-1), cost(-INFL) {}
WEdge(int to, ll cost) : to(to), cost(cost) {}
//
operator int() const { return to; }
#ifdef _MSC_VER
friend ostream& operator<<(ostream& os, const WEdge& e) {
os << '(' << e.to << ',' << e.cost << ')';
return os;
}
#endif
};
//
/*
* WGraph g
* g[v] : v
*
* verify : https://judge.yosupo.jp/problem/shortest_path
*/
using WGraph = vector<vector<WEdge>>;
//min-max O(n + m log n)
/*
* g st INFL
* s→t
*/
vl min_max_dijkstra(const WGraph& g, int st) {
int n = sz(g);
vl dist(n, INFL); // st
dist[st] = -INFL;
// (st , )
priority_queue_rev<pli> q;
q.push({ -INFL, st });
while (!q.empty()) {
auto [c, s] = q.top(); q.pop();
// O(n^2)
if (dist[s] < c) continue;
repe(e, g[s]) {
// 辿
if (max(dist[s], e.cost) < dist[e.to]) {
dist[e.to] = max(dist[s], e.cost);
q.push({ dist[e.to], e.to });
}
}
}
return dist;
}
int main() {
// input_from_file("input.txt");
// output_to_file("output.txt");
int n, m, Q;
cin >> n >> m >> Q;
set<pii> ab;
rep(j, m) {
int a, b;
cin >> a >> b;
a--; b--;
ab.insert({ a, b });
}
vector<pii> cd(Q);
rep(j, Q) {
int c, d;
cin >> c >> d;
c--; d--;
cd[j] = { c, d };
ab.erase({ c, d });
}
WGraph g(n);
repe(tmp, ab) {
auto [a, b] = tmp;
g[a].push_back({ b, 0 });
g[b].push_back({ a, 0 });
}
rep(j, Q) {
auto [c, d] = cd[j];
g[c].push_back({ d, Q - j });
g[d].push_back({ c, Q - j });
}
int st = 0;
vl dist = min_max_dijkstra(g, 0);
dump(dist);
vl res(n);
rep(i, n) {
if (dist[i] == 0) res[i] = -1;
else if (dist[i] == INFL) res[i] = 0;
else res[i] = Q + 1 - dist[i];
}
repi(i, 1, n - 1) cout << res[i] << endl;
}
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