結果
問題 | No.654 Air E869120 |
ユーザー |
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提出日時 | 2020-04-03 11:09:50 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 218 ms / 2,000 ms |
コード長 | 3,640 bytes |
コンパイル時間 | 1,461 ms |
コンパイル使用メモリ | 111,788 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-28 17:45:01 |
合計ジャッジ時間 | 2,878 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 5 |
other | AC * 35 |
ソースコード
#include <iostream>#include <algorithm>#include <complex>#include <utility>#include <vector>#include <string>#include <queue>#include <tuple>#include <cmath>#include <bitset>#include <cctype>#include <set>#include <numeric>#include <functional>#define _overload3(_1,_2,_3,name,...) name#define _rep(i,n) repi(i,0,n)#define repi(i,a,b) for(ll i=ll(a);i<ll(b);++i)#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)#define all(x) (x).begin(),(x).end()#define PRINT(V) cout << V << "\n"#define SORT(V) sort((V).begin(),(V).end())#define RSORT(V) sort((V).rbegin(), (V).rend())using namespace std;using ll = long long;template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }inline void Yes(bool condition){ if(condition) PRINT("Yes"); else PRINT("No"); }template<class itr> void cins(itr first,itr last){for (auto i = first;i != last;i++){cin >> (*i);}}template<class itr> void array_output(itr start,itr goal){string ans = "",k = " ";for (auto i = start;i != goal;i++) ans += to_string(*i)+k;if (!ans.empty()) ans.pop_back();PRINT(ans);}ll gcd(ll a, ll b) {return a ? gcd(b%a,a) : b;}const ll INF = 1e16;const ll MOD = 1000000007;typedef pair<ll,ll> P;const ll MAX = 1005;constexpr ll nx[4] = {1,0,-1,0};constexpr ll ny[4] = {0,1,0,-1};class Ford_Fulkerson{private:struct edge{ll to,cap,rev;};ll siz;vector<vector<edge>> edges;vector<bool> done;public:Ford_Fulkerson(ll n){edges.resize(n);done.assign(n,0);siz = n;}void add_edge(ll from,ll to,ll cap){edges[from].push_back((edge){to,cap,(ll)edges[to].size()});edges[to].push_back((edge){from,0,(ll)edges[from].size()-1});}ll dfs(ll v,ll t,ll f){if (v == t) return f;done[v] = true;for(auto &e:edges[v]){if (e.cap > 0 && !done[e.to]){ll d = dfs(e.to,t,min(f,e.cap));if (d > 0){e.cap -= d;edges[e.to][e.rev].cap += d;return d;}}}return 0;}ll max_flow(ll s,ll t){ll flow = 0;while(true){done.assign(siz,0);ll f = dfs(s,t,INF);if (f == 0) return flow;flow += f;}}};int main(){cin.tie(0);ios::sync_with_stdio(false);ll n,m,d;cin >> n >> m >> d;ll from,to,p,q,c;Ford_Fulkerson g(2*m+2);vector<vector<P>> arrive(n);vector<vector<P>> depart(n);rep(i,m){cin >> from >> to >> p >> q >> c;--from;--to;depart[from].push_back(P(2*i,p));arrive[to].push_back(P(2*i+1,q+d));g.add_edge(2*i,2*i+1,c);}rep(i,n){for(P p1:arrive[i]){for(P p2:depart[i]){ll start,goal;tie(start,p) = p1;tie(goal,q) = p2;if (p <= q){g.add_edge(start,goal,INF);}}}}for(P p2:depart[0]){ll s;tie(s,p) = p2;g.add_edge(2*m,s,INF);}for(P p1:arrive[n-1]){ll s;tie(s,p) = p1;g.add_edge(s,2*m+1,INF);}PRINT(g.max_flow(2*m,2*m+1));}