結果
問題 | No.1301 Strange Graph Shortest Path |
ユーザー | suta28407928 |
提出日時 | 2020-11-27 23:30:47 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,901 bytes |
コンパイル時間 | 3,143 ms |
コンパイル使用メモリ | 193,896 KB |
実行使用メモリ | 48,344 KB |
最終ジャッジ日時 | 2024-09-13 01:09:12 |
合計ジャッジ時間 | 21,412 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
6,812 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 366 ms
40,064 KB |
testcase_03 | AC | 342 ms
36,224 KB |
testcase_04 | AC | 465 ms
38,144 KB |
testcase_05 | AC | 330 ms
40,320 KB |
testcase_06 | AC | 437 ms
35,584 KB |
testcase_07 | AC | 427 ms
37,504 KB |
testcase_08 | AC | 288 ms
36,736 KB |
testcase_09 | AC | 407 ms
33,664 KB |
testcase_10 | AC | 293 ms
36,096 KB |
testcase_11 | AC | 401 ms
36,992 KB |
testcase_12 | AC | 389 ms
36,736 KB |
testcase_13 | AC | 386 ms
40,192 KB |
testcase_14 | AC | 353 ms
34,048 KB |
testcase_15 | AC | 365 ms
35,200 KB |
testcase_16 | AC | 437 ms
38,016 KB |
testcase_17 | AC | 434 ms
40,320 KB |
testcase_18 | AC | 392 ms
37,120 KB |
testcase_19 | AC | 382 ms
35,712 KB |
testcase_20 | AC | 430 ms
34,688 KB |
testcase_21 | AC | 383 ms
39,040 KB |
testcase_22 | AC | 399 ms
35,584 KB |
testcase_23 | AC | 470 ms
40,448 KB |
testcase_24 | AC | 388 ms
35,200 KB |
testcase_25 | AC | 429 ms
38,272 KB |
testcase_26 | AC | 377 ms
36,992 KB |
testcase_27 | AC | 397 ms
36,864 KB |
testcase_28 | AC | 366 ms
40,320 KB |
testcase_29 | AC | 471 ms
37,504 KB |
testcase_30 | AC | 523 ms
38,016 KB |
testcase_31 | AC | 473 ms
37,888 KB |
testcase_32 | AC | 2 ms
6,944 KB |
testcase_33 | AC | 169 ms
31,744 KB |
testcase_34 | TLE | - |
ソースコード
#pragma GCC target("avx2") #pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; #define DEBUG #ifdef DEBUG template <class T, class U> ostream &operator<<(ostream &os, const pair<T, U> &p) { os << '(' << p.first << ',' << p.second << ')'; return os; } template <class T> ostream &operator<<(ostream &os, const vector<T> &v) { os << '{'; for(int i = 0; i < (int)v.size(); i++) { if(i) { os << ','; } os << v[i]; } os << '}'; return os; } void debugg() { cerr << endl; } template <class T, class... Args> void debugg(const T &x, const Args &... args) { cerr << " " << x; debugg(args...); } #define debug(...) \ cerr << __LINE__ << " [" << #__VA_ARGS__ << "]: ", debugg(__VA_ARGS__) #define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl #else #define debug(...) (void(0)) #define dump(x) (void(0)) #endif using namespace std; typedef long long ll; typedef vector<ll> vl; typedef vector<vl> vvl; typedef vector<char> vc; typedef vector<string> vs; typedef vector<bool> vb; typedef vector<double> vd; typedef pair<ll,ll> P; typedef pair<int,int> pii; typedef vector<P> vpl; typedef tuple<ll,ll,ll> tapu; #define rep(i,n) for(int i=0; i<(n); i++) #define REP(i,a,b) for(int i=(a); i<(b); i++) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() const int inf = 1<<30; const ll linf = 1LL<<62; const int MAX = 510000; int dy[8] = {0,-1,0,1,1,-1,-1,1}; int dx[8] = {-1,0,1,0,1,-1,1,-1}; const double pi = acos(-1); const double eps = 1e-7; template<typename T1,typename T2> inline bool chmin(T1 &a,T2 b){ if(a>b){ a = b; return true; } else return false; } template<typename T1,typename T2> inline bool chmax(T1 &a,T2 b){ if(a<b){ a = b; return true; } else return false; } template<typename T> inline void print(T &a){ int sz = a.size(); for(auto itr = a.begin(); itr != a.end(); itr++){ cout << *itr; sz--; if(sz) cout << " "; } cout << "\n"; } template<typename T1,typename T2> inline void print2(T1 a, T2 b){ cout << a << " " << b << "\n"; } template<typename T1,typename T2,typename T3> inline void print3(T1 a, T2 b, T3 c){ cout << a << " " << b << " " << c << "\n"; } void mark() {cout << "#" << "\n";} ll pcount(ll x) {return __builtin_popcountll(x);} //const int mod = 1e9 + 7; const int mod = 998244353; struct mcf{ struct edge{ ll to, cap, cost, rev; }; int n; vector<vector<edge>> G; vector<ll> dist,prevv,preve; mcf(int n) : n(n) { G.resize(n); dist.resize(n); prevv.resize(n); preve.resize(n); } void add_edge(ll from, ll to, ll cap, ll cost){ G[from].push_back(edge{to, cap, cost, (ll)G[to].size()}); G[to].push_back(edge{from, 0, -cost, (ll)G[from].size()-1}); } ll flow(ll s, ll t, ll f){ ll res = 0; while(f > 0){ fill(dist.begin(), dist.end(), linf); dist[s] = 0; bool upd = true; while(upd){ upd = false; for(int u=0; u<n; u++){ if(dist[u] == linf) continue; for(int i=0; i<G[u].size(); i++){ edge &e = G[u][i]; if(e.cap > 0 && dist[e.to] > dist[u] + e.cost){ dist[e.to] = dist[u] + e.cost; prevv[e.to] = u; preve[e.to] = i; upd = true; } } } } if(dist[t] == linf) return -1; ll d = f; for(int u=t; u!=s; u=prevv[u]){ d = min(d, G[prevv[u]][preve[u]].cap); } f -= d; res += d * dist[t]; for(int u=t; u!=s; u=prevv[u]){ edge &e = G[prevv[u]][preve[u]]; e.cap -= d; G[u][e.rev].cap += d; } } return res; } }; int main(){ ll n,m; cin >> n >> m; mcf G(n); rep(i,m){ ll u,v,c,d; cin >> u >> v >> c >> d; u--; v--; G.add_edge(u,v,1,c); G.add_edge(u,v,1,d); G.add_edge(v,u,1,c); G.add_edge(v,u,1,d); } ll ans = G.flow(0,n-1,2); cout << ans << "\n"; }