結果
問題 | No.807 umg tours |
ユーザー | ningenMe |
提出日時 | 2023-05-31 03:00:04 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 235 ms / 4,000 ms |
コード長 | 6,178 bytes |
コンパイル時間 | 890 ms |
コンパイル使用メモリ | 88,720 KB |
実行使用メモリ | 45,488 KB |
最終ジャッジ日時 | 2024-06-08 20:56:12 |
合計ジャッジ時間 | 4,522 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
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
5,376 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 | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 125 ms
32,884 KB |
testcase_12 | AC | 119 ms
26,452 KB |
testcase_13 | AC | 170 ms
36,616 KB |
testcase_14 | AC | 60 ms
17,592 KB |
testcase_15 | AC | 43 ms
14,632 KB |
testcase_16 | AC | 184 ms
36,972 KB |
testcase_17 | AC | 231 ms
45,008 KB |
testcase_18 | AC | 235 ms
45,488 KB |
testcase_19 | AC | 230 ms
43,300 KB |
testcase_20 | AC | 121 ms
23,996 KB |
testcase_21 | AC | 126 ms
25,080 KB |
testcase_22 | AC | 43 ms
12,672 KB |
testcase_23 | AC | 33 ms
10,752 KB |
testcase_24 | AC | 75 ms
34,268 KB |
testcase_25 | AC | 232 ms
43,896 KB |
ソースコード
#include <vector> #include <iostream> #include <algorithm> #include <array> using namespace std; /* * @title FastIO * @docs md/util/FastIO.md */ class FastIO{ private: inline static constexpr int ch_0='0'; inline static constexpr int ch_9='9'; inline static constexpr int ch_n='-'; inline static constexpr int ch_s=' '; inline static constexpr int ch_l='\n'; inline static void endline_skip(char& ch) { while(ch==ch_l) ch=getchar(); } template<typename T> inline static void read_integer(T &x) { int neg=0; char ch; x=0; ch=getchar(); endline_skip(ch); if(ch==ch_n) neg=1,ch=getchar(); for(;(ch_0 <= ch && ch <= ch_9); ch = getchar()) x = x*10 + (ch-ch_0); if(neg) x*=-1; } template<typename T> inline static void read_unsigned_integer(T &x) { char ch; x=0; ch=getchar(); endline_skip(ch); for(;(ch_0 <= ch && ch <= ch_9); ch = getchar()) x = x*10 + (ch-ch_0); } inline static void read_string(string &x) { char ch; x=""; ch=getchar(); endline_skip(ch); for(;(ch != ch_s && ch!=ch_l); ch = getchar()) x.push_back(ch); } inline static char ar[40]; inline static char *ch_ar; template<typename T> inline static void write_integer(T x) { ch_ar=ar; if(x< 0) putchar(ch_n), x=-x; if(x==0) putchar(ch_0); for(;x;x/=10) *ch_ar++=(ch_0+x%10); while(ch_ar--!=ar) putchar(*ch_ar); } public: inline static void read(int &x) {read_integer<int>(x);} inline static void read(long long &x) {read_integer<long long>(x);} inline static void read(unsigned int &x) {read_unsigned_integer<unsigned int>(x);} inline static void read(unsigned long long &x) {read_unsigned_integer<unsigned long long>(x);} inline static void read(string &x) {read_string(x);} inline static void read(__int128_t &x) {read_integer<__int128_t>(x);} inline static void write(__int128_t x) {write_integer<__int128_t>(x);} inline static void write(char x) {putchar(x);} }; #define read(arg) FastIO::read(arg) #define write(arg) FastIO::write(arg) /* * @title RadixHeap - 非負整数heap * @docs md/heap/RadixHeap.md */ template<class T, class Key = unsigned long long> class RadixHeap{ using TypeNode = pair<Key, T>; template<class InnerKey, class ZZ=InnerKey> class Inner{}; template<class InnerKey> class Inner<InnerKey, unsigned long long>{ 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: Inner(T mini) : size_num(0), last(make_pair(0, mini)) {} 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; } }; template<class InnerKey> class Inner<InnerKey, unsigned int>{ array<vector<TypeNode>,33> vq; unsigned int size_num; TypeNode last; inline int bit(unsigned int a) { return a ? 32 - __builtin_clz(a) : 0;} public: Inner(T mini) : size_num(0), last(make_pair(0, mini)) {} 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 int 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; } }; Inner<Key,Key> inner; public: RadixHeap(T mini) : inner(mini) {} inline bool empty() { return inner.empty();} inline size_t size(){ return inner.size();} inline void push(TypeNode x){ inner.push(x);} inline void emplace(unsigned long long key,T val){ inner.emplace(key,val);} inline TypeNode pop() { return inner.pop(); } }; //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,unsigned long long> pq(0); cost[start] = 0; pq.push({ 0,start }); while (!pq.empty()) { auto p = pq.pop(); T v = p.first; int from = p.second; if(cost[from]<v) continue; 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() { cin.tie(0);ios::sync_with_stdio(false); int N, M; read(N); read(M); Dijkstra<long long> dijk(2*N, 1LL<<60); for(int i = 0; i < M; ++i){ int a, b; long long c; read(a); read(b); read(c); a--, b--; dijk.make_edge(a, b, c); dijk.make_edge(b, a, c); dijk.make_edge(a+N, b+N, c); dijk.make_edge(b+N, a+N, c); dijk.make_edge(a, b+N, 0); dijk.make_edge(b, a+N, 0); } dijk.solve(0); dijk.cost[N]=0; for (int i = 0; i < N; ++i) cout << dijk.cost[i]+dijk.cost[i+N] << "\n"; return 0; }