結果
問題 | No.468 役に立つ競技プログラミング実践編 |
ユーザー | satanic |
提出日時 | 2016-12-18 00:48:25 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,398 bytes |
コンパイル時間 | 1,398 ms |
コンパイル使用メモリ | 130,464 KB |
実行使用メモリ | 39,492 KB |
最終ジャッジ日時 | 2024-12-14 07:22:02 |
合計ジャッジ時間 | 34,099 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
13,636 KB |
testcase_01 | AC | 2 ms
39,292 KB |
testcase_02 | AC | 2 ms
13,636 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | TLE | - |
testcase_25 | TLE | - |
testcase_26 | TLE | - |
testcase_27 | TLE | - |
testcase_28 | TLE | - |
testcase_29 | TLE | - |
testcase_30 | TLE | - |
testcase_31 | TLE | - |
testcase_32 | TLE | - |
testcase_33 | TLE | - |
testcase_34 | AC | 548 ms
18,048 KB |
testcase_35 | AC | 8 ms
6,816 KB |
testcase_36 | AC | 2 ms
39,252 KB |
ソースコード
// need #include <iostream> #include <algorithm> // data structure #include <bitset> //#include <list> #include <map> #include <queue> #include <set> #include <stack> #include <string> #include <utility> #include <vector> //#include <array> //#include <tuple> #include <unordered_map> #include <unordered_set> //#include <complex> //#include <deque> // stream //#include <istream> //#include <sstream> //#include <ostream> // etc #include <cassert> #include <functional> #include <iomanip> //#include <typeinfo> #include <chrono> #include <random> #include <cfenv> #define INIT std::ios::sync_with_stdio(false);std::cin.tie(0); #define VAR(type, ...)type __VA_ARGS__;MACRO_VAR_Scan(__VA_ARGS__); template<typename T> void MACRO_VAR_Scan(T& t) { std::cin >> t; } template<typename First, typename...Rest>void MACRO_VAR_Scan(First& first, Rest&...rest) { std::cin >> first; MACRO_VAR_Scan(rest...); } #define VEC_ROW(type, n, ...)std::vector<type> __VA_ARGS__;MACRO_VEC_ROW_Init(n, __VA_ARGS__); for(int i=0; i<n; ++i){MACRO_VEC_ROW_Scan(i, __VA_ARGS__);} template<typename T> void MACRO_VEC_ROW_Init(int n, T& t) { t.resize(n); } template<typename First, typename...Rest>void MACRO_VEC_ROW_Init(int n, First& first, Rest&...rest) { first.resize(n); MACRO_VEC_ROW_Init(n, rest...); } template<typename T> void MACRO_VEC_ROW_Scan(int p, T& t) { std::cin >> t[p]; } template<typename First, typename...Rest>void MACRO_VEC_ROW_Scan(int p, First& first, Rest&...rest) { std::cin >> first[p]; MACRO_VEC_ROW_Scan(p, rest...); } #define OUT(d) std::cout<<d; #define FOUT(n, d) std::cout<<std::fixed<<std::setprecision(n)<<d; #define SOUT(n, c, d) std::cout<<std::setw(n)<<std::setfill(c)<<d; #define SP std::cout<<" "; #define TAB std::cout<<"\t"; #define BR std::cout<<"\n"; #define ENDL std::cout<<std::endl; #define FLUSH std::cout<<std::flush; #define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i; #define MAT(type, c, m, n) std::vector<std::vector<type>> c(m, std::vector<type>(n));for(auto& r:c)for(auto& i:r)std::cin>>i; #define ALL(a) (a).begin(),(a).end() #define FOR(i, a, b) for(int i=(a);i<(b);++i) #define RFOR(i, a, b) for(int i=(b)-1;i>=(a);--i) #define REP(i, n) for(int i=0;i<int(n);++i) #define RREP(i, n) for(int i=(n)-1;i>=0;--i) #define FORLL(i, a, b) for(ll i=ll(a);i<ll(b);++i) #define RFORLL(i, a, b) for(ll i=ll(b)-1;i>=ll(a);--i) #define REPLL(i, n) for(ll i=0;i<ll(n);++i) #define RREPLL(i, n) for(ll i=ll(n)-1;i>=0;--i) #define PAIR std::pair<int, int> #define PAIRLL std::pair<ll, ll> #define IN(a, x, b) (a<=x && x<b) #define SHOW(d) {std::cerr << #d << "\t:" << d << "\n";} #define SHOWVECTOR(v) {std::cerr << #v << "\t:";for(const auto& xxx : v){std::cerr << xxx << " ";}std::cerr << "\n";} #define SHOWVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr << yyy << " ";}std::cerr << "\n";}} #define SHOWPAIR(p) {std::cerr << #p << "\t:(" << p.first << ",\t" << p.second << ")\n";} #define SHOWPAIRVECTOR2(v) {std::cerr << #v << "\t:\n";for(const auto& xxx : v){for(const auto& yyy : xxx){std::cerr<<'('<<yyy.first<<", "<<yyy.second<<") ";}std::cerr << "\n";}} #define SHOWPAIRVECTOR(v) {for(const auto& xxx:v){std::cerr<<'('<<xxx.first<<", "<<xxx.second<<") ";}std::cerr<<"\n";} #define SHOWQUEUE(a) {std::queue<decltype(a.front())> tmp(a);std::cerr << #a << "\t:";for(int i=0; i<static_cast<int>(a.size()); ++i){std::cerr << tmp.front() << "\n";tmp.pop();}std::cerr << "\n";} template<typename T> inline T CHMAX(T& a, const T b) { return a = (a < b) ? b : a; } template<typename T> inline T CHMIN(T& a, const T b) { return a = (a > b) ? b : a; } #define EXCEPTION(msg) throw std::string("Exception : " msg " [ in ") + __func__ + " : " + std::to_string(__LINE__) + " lines ]" #define TRY(cond, msg) try {if (cond) EXCEPTION(msg);}catch (std::string s) {std::cerr << s << std::endl;} void CHECKTIME(std::function<void()> f) { auto start = std::chrono::system_clock::now(); f(); auto end = std::chrono::system_clock::now(); auto res = std::chrono::duration_cast<std::chrono::nanoseconds>((end - start)).count(); std::cerr << "[Time:" << res << "ns (" << res / (1.0e9) << "s)]\n"; } #define int ll using ll = long long; using ull = unsigned long long; constexpr int INFINT = 1 << 30; // 1.07x10^ 9 constexpr int INFINT_LIM = (1LL << 31) - 1; // 2.15x10^ 9 constexpr ll INFLL = 1LL << 60; // 1.15x10^18 constexpr ll INFLL_LIM = (1LL << 62) - 1 + (1LL << 62); // 9.22x10^19 constexpr double EPS = 1e-7; constexpr int MOD = 1000000007; constexpr double PI = 3.141592653589793238462643383279; struct Edge { int to, cost; Edge() {} Edge(int t, int c) : to(t), cost(c) {} bool operator<(const Edge& r) const { return cost < r.cost; } }; signed main() { INIT; VAR(int, n, m); VEC_ROW(int, m, a, b, c); std::vector<std::vector<Edge>> graph(n); REP(i, m) { graph[a[i]].emplace_back(b[i], c[i]); } std::vector<int> dist(n); std::function<void(int)> Dijkstra = [&](int s) { using P = std::pair<int, int>; std::priority_queue<P, std::vector<P>, std::greater<P>> pq; std::fill(dist.begin(), dist.end(), INFLL); dist[s] = 0; pq.push(P(0, s)); while (!pq.empty()) { P p = pq.top(); pq.pop(); int v = p.second; if (dist[v] < p.first) continue; for (int i = 0; i < graph[v].size(); ++i) { Edge e = graph[v][i]; if (dist[e.to] > dist[v] + e.cost) { dist[e.to] = dist[v] + e.cost; pq.push(P(dist[e.to], e.to)); } } } }; std::vector<std::vector<Edge>> graph2(n); REP(i, m) { graph2[a[i]].emplace_back(b[i], -c[i]); } std::vector<int> dist2(n); std::function<void(int)> Dijkstra2 = [&](int s) { using P = std::pair<int, int>; std::priority_queue<P, std::vector<P>, std::greater<P>> pq; std::fill(dist2.begin(), dist2.end(), INFLL); dist2[s] = 0; pq.push(P(0, s)); while (!pq.empty()) { P p = pq.top(); pq.pop(); int v = p.second; if (dist2[v] < p.first) continue; for (int i = 0; i < graph2[v].size(); ++i) { Edge e = graph2[v][i]; if (dist2[e.to] > dist2[v] + e.cost) { dist2[e.to] = dist2[v] + e.cost; pq.push(P(dist2[e.to], e.to)); } } } }; Dijkstra(0); Dijkstra2(0); int p = 0; REP(i, n) { p += (dist[i] + dist2[i] != 0); } SHOWVECTOR(dist); SHOWVECTOR(dist2); OUT(-dist2[n-1])SP OUT(p)OUT("/")OUT(n)BR; return 0; }