結果

問題 No.807 umg tours
ユーザー ningenMeningenMe
提出日時 2020-04-27 04:46:28
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 4,717 bytes
コンパイル時間 920 ms
コンパイル使用メモリ 99,000 KB
最終ジャッジ日時 2024-11-14 22:28:16
合計ジャッジ時間 2,716 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
このコードへのチャレンジ
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コンパイルメッセージ
main.cpp: In instantiation of 'class RadixHeap<int>':
main.cpp:114:5:   required from here
main.cpp:54:36: error: 'RadixHeap<T>::vq' has incomplete type
   54 |         array<vector<TypeNode>,65> vq;
      |                                    ^~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/functional:54,
                 from main.cpp:8:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/tuple:1595:45: note: declaration of 'struct std::array<std::vector<std::pair<long long unsigned int, int>, std::allocator<std::pair<long long unsigned int, int> > >, 65>'
 1595 |   template<typename _Tp, size_t _Nm> struct array;
      |                                             ^~~~~

ソースコード

diff # 

#include <iostream>
#include <fstream>
#include <cmath>  
#include <cstdlib>
#include <ctime>
#include <algorithm>
#include <numeric>
#include <functional>
#include <string> 
#include <vector>
#include <bitset>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <random>

using namespace std;
using ll = long long;
using ull = unsigned long long;

#define REP(i,n) for(long long i = 0; i < (n); i++)
#define FOR(i, m, n) for(long long i = (m);i < (n); ++i)
#define ALL(obj) (obj).begin(),(obj).end()

template<class T> using V = vector<T>;
template<class T, class U> using P = pair<T, U>;

const ll MOD = (ll)1e9 + 7;
const ll MOD2 = 998244353;
const ll LLINF = (ll)1e18;
const ll INTINF = (ll)1e9;
const long double PI = 3.1415926535897932384626433;

template <class T> void corner(bool flg, T hoge) { if (flg) { cout << hoge << endl; exit(0); } }
template <class T, class U>ostream &operator<<(ostream &o, const map<T, U>&obj) { o << "{"; for (auto &x : obj) o << " {" << x.first << " : " << x.second << "}" << ","; o << " }"; return o; }
template <class T>ostream &operator<<(ostream &o, const set<T>&obj) { o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr) o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o; }
template <class T>ostream &operator<<(ostream &o, const vector<T>&obj) { o << "{"; for (int i = 0; i < (int)obj.size(); ++i)o << (i > 0 ? ", " : "") << obj[i]; o << "}"; return o; }
template <class T, class U>ostream &operator<<(ostream &o, const pair<T, U>&obj) { o << "{" << obj.first << ", " << obj.second << "}"; return o; }
template <template <class tmp>  class T, class U> ostream &operator<<(ostream &o, const T<U> &obj) { o << "{"; for (auto itr = obj.begin(); itr != obj.end(); ++itr)o << (itr != obj.begin() ? ", " : "") << *itr; o << "}"; return o; }
void print(void) { cout << endl; }
template <class Head> void print(Head&& head) { cout << head; print(); }
template <class Head, class... Tail> void print(Head&& head, Tail&&... tail) { cout << head << " "; print(forward<Tail>(tail)...); }
template <class T> void chmax(T& a, const T b) { a = max<T>(a, b); }
template <class T> void chmin(T& a, const T b) { a = min<T>(a, b); }
void YN(bool flg) { cout << ((flg) ? "YES" : "NO") << endl; }
void Yn(bool flg) { cout << ((flg) ? "Yes" : "No") << endl; }
void yn(bool flg) { cout << ((flg) ? "yes" : "no") << endl; }


template<class T> class RadixHeap{
	using TypeNode = pair<unsigned long long, T>;
	array<vector<TypeNode>,65> vq;
	unsigned long long size_num;
	TypeNode last;
	inline int bit(unsigned long long a) {
		return a ? 64 - __builtin_clzll(a) : 0;
	}
public:
	RadixHeap(T mini) : size_num(0), last(make_pair(0,mini)) {
		// do nothing
	}
	inline bool empty() {
		return size_num == 0;
	}
	inline size_t size(){
		return size_num;
	}
	inline void push(TypeNode x){
		++size_num;
		vq[bit(x.first^last.first)].push_back(x);
	}
	inline void emplace(unsigned long long key,T val){
		++size_num;
		vq[bit(key^last.first)].emplace_back(key,val);
	}
	inline TypeNode pop() {
		if(vq[0].empty()) {
			int i = 1;
			while(vq[i].empty()) ++i;
			last = *min_element(vq[i].begin(),vq[i].end());
			for(auto &p : vq[i]) vq[bit(p.first ^ last.first)].push_back(p);
			vq[i].clear();
		}
		--size_num;
		auto res = vq[0].back();
		vq[0].pop_back();
		return res;
	}
};


//Dijkstra
template<class T> class Dijkstra {
public:
	int N;
	T inf;
	vector<T> cost;
	vector<vector<pair<T, int>>> edge;

	Dijkstra(const int N, T inf) : N(N), inf(inf), cost(N), edge(N) {
	}

	void make_edge(int from, int to, T w) {
		edge[from].push_back({ w,to });
	}

	void solve(int start) {
		for (int i = 0; i < N; ++i) cost[i] = inf;

		RadixHeap<int> pq(0);
		cost[start] = 0;
		pq.push({ 0,start });

		while (!pq.empty()) {
			auto p = pq.pop();
			T v = p.first;
			int from = p.second;
			for (auto u : edge[from]) {
				T w = v + u.first;
				int to = u.second;
				if (w < cost[to]) {
					cost[to] = w;
					pq.push({ w,to });
				}
			}
		}
		return;
	}
};

int main() {
	int N, M; cin >> N >> M;
	Dijkstra<ll> dijk(N, LLINF);
	for(int i = 0; i < M; ++i){
		int a, b;
		ll c;
		cin >> a >> b >> c;
		a--, b--;
		dijk.make_edge(a, b, c);
		dijk.make_edge(b, a, c);
	}
	dijk.solve(0);
	V<ll> cost0(N, LLINF);

	RadixHeap<int> pq(0);
	cost0[0] = 0;
	pq.push({ 0,0 });

	while (!pq.empty()) {
		auto p = pq.pop();
		ll v = p.first;
		int from = p.second;
		for (auto u : dijk.edge[from]) {
			ll w = u.first;
			int to = u.second;
			w = min(dijk.cost[from],cost0[from]+w);
			if (w < cost0[to]) {
				cost0[to] = w;
				pq.push({ w,to });
			}
		}
	}
	
	for (int i = 0; i < N; ++i) cout << dijk.cost[i] + cost0[i] << endl;

	return 0;
}
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