結果
問題 | No.1301 Strange Graph Shortest Path |
ユーザー | maroon_kuri |
提出日時 | 2020-11-27 21:52:58 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 197 ms / 3,000 ms |
コード長 | 6,250 bytes |
コンパイル時間 | 2,703 ms |
コンパイル使用メモリ | 222,276 KB |
実行使用メモリ | 42,952 KB |
最終ジャッジ日時 | 2024-09-13 00:54:13 |
合計ジャッジ時間 | 8,799 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,820 KB |
testcase_02 | AC | 141 ms
41,844 KB |
testcase_03 | AC | 114 ms
37,448 KB |
testcase_04 | AC | 180 ms
39,700 KB |
testcase_05 | AC | 122 ms
41,364 KB |
testcase_06 | AC | 161 ms
36,948 KB |
testcase_07 | AC | 147 ms
38,820 KB |
testcase_08 | AC | 120 ms
37,832 KB |
testcase_09 | AC | 131 ms
35,116 KB |
testcase_10 | AC | 118 ms
37,112 KB |
testcase_11 | AC | 150 ms
38,304 KB |
testcase_12 | AC | 150 ms
37,960 KB |
testcase_13 | AC | 131 ms
41,184 KB |
testcase_14 | AC | 160 ms
35,248 KB |
testcase_15 | AC | 130 ms
36,392 KB |
testcase_16 | AC | 172 ms
39,296 KB |
testcase_17 | AC | 154 ms
42,124 KB |
testcase_18 | AC | 143 ms
38,412 KB |
testcase_19 | AC | 137 ms
37,040 KB |
testcase_20 | AC | 162 ms
35,664 KB |
testcase_21 | AC | 147 ms
40,380 KB |
testcase_22 | AC | 169 ms
36,772 KB |
testcase_23 | AC | 133 ms
41,720 KB |
testcase_24 | AC | 162 ms
36,352 KB |
testcase_25 | AC | 161 ms
39,864 KB |
testcase_26 | AC | 145 ms
38,432 KB |
testcase_27 | AC | 136 ms
38,264 KB |
testcase_28 | AC | 123 ms
41,176 KB |
testcase_29 | AC | 197 ms
38,528 KB |
testcase_30 | AC | 148 ms
39,460 KB |
testcase_31 | AC | 160 ms
39,056 KB |
testcase_32 | AC | 2 ms
6,940 KB |
testcase_33 | AC | 85 ms
32,128 KB |
testcase_34 | AC | 147 ms
42,952 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll=long long; #define int ll #define rng(i,a,b) for(int i=int(a);i<int(b);i++) #define rep(i,b) rng(i,0,b) #define gnr(i,a,b) for(int i=int(b)-1;i>=int(a);i--) #define per(i,b) gnr(i,0,b) #define pb push_back #define eb emplace_back #define a first #define b second #define bg begin() #define ed end() #define all(x) x.bg,x.ed #define si(x) int(x.size()) #ifdef LOCAL #define dmp(x) cerr<<__LINE__<<" "<<#x<<" "<<x<<endl #else #define dmp(x) void(0) #endif template<class t,class u> void chmax(t&a,u b){if(a<b)a=b;} template<class t,class u> void chmin(t&a,u b){if(b<a)a=b;} template<class t> using vc=vector<t>; template<class t> using vvc=vc<vc<t>>; using pi=pair<int,int>; using vi=vc<int>; template<class t,class u> ostream& operator<<(ostream& os,const pair<t,u>& p){ return os<<"{"<<p.a<<","<<p.b<<"}"; } template<class t> ostream& operator<<(ostream& os,const vc<t>& v){ os<<"{"; for(auto e:v)os<<e<<","; return os<<"}"; } #define mp make_pair #define mt make_tuple #define one(x) memset(x,-1,sizeof(x)) #define zero(x) memset(x,0,sizeof(x)) #ifdef LOCAL void dmpr(ostream&os){os<<endl;} template<class T,class... Args> void dmpr(ostream&os,const T&t,const Args&... args){ os<<t<<" "; dmpr(os,args...); } #define dmp2(...) dmpr(cerr,__LINE__,##__VA_ARGS__) #else #define dmp2(...) void(0) #endif using uint=unsigned; using ull=unsigned long long; template<class t,size_t n> ostream& operator<<(ostream&os,const array<t,n>&a){ return os<<vc<t>(all(a)); } template<int i,class T> void print_tuple(ostream&,const T&){ } template<int i,class T,class H,class ...Args> void print_tuple(ostream&os,const T&t){ if(i)os<<","; os<<get<i>(t); print_tuple<i+1,T,Args...>(os,t); } template<class ...Args> ostream& operator<<(ostream&os,const tuple<Args...>&t){ os<<"{"; print_tuple<0,tuple<Args...>,Args...>(os,t); return os<<"}"; } template<class t> void print(t x,int suc=1){ cout<<x; if(suc==1) cout<<"\n"; if(suc==2) cout<<" "; } ll read(){ ll i; cin>>i; return i; } vi readvi(int n,int off=0){ vi v(n); rep(i,n)v[i]=read()+off; return v; } pi readpi(int off=0){ int a,b;cin>>a>>b; return pi(a+off,b+off); } template<class T> void print(const vector<T>&v,int suc=1){ rep(i,v.size()) print(v[i],i==int(v.size())-1?suc:2); } string readString(){ string s; cin>>s; return s; } template<class T> T sq(const T& t){ return t*t; } //#define CAPITAL void yes(bool ex=true){ #ifdef CAPITAL cout<<"YES"<<"\n"; #else cout<<"Yes"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void no(bool ex=true){ #ifdef CAPITAL cout<<"NO"<<"\n"; #else cout<<"No"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void possible(bool ex=true){ #ifdef CAPITAL cout<<"POSSIBLE"<<"\n"; #else cout<<"Possible"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } void impossible(bool ex=true){ #ifdef CAPITAL cout<<"IMPOSSIBLE"<<"\n"; #else cout<<"Impossible"<<"\n"; #endif if(ex)exit(0); #ifdef LOCAL cout.flush(); #endif } constexpr ll ten(int n){ return n==0?1:ten(n-1)*10; } const ll infLL=LLONG_MAX/3; #ifdef int const int inf=infLL; #else const int inf=INT_MAX/2-100; #endif int topbit(signed t){ return t==0?-1:31-__builtin_clz(t); } int topbit(ll t){ return t==0?-1:63-__builtin_clzll(t); } int botbit(signed a){ return a==0?32:__builtin_ctz(a); } int botbit(ll a){ return a==0?64:__builtin_ctzll(a); } int popcount(signed t){ return __builtin_popcount(t); } int popcount(ll t){ return __builtin_popcountll(t); } bool ispow2(int i){ return i&&(i&-i)==i; } ll mask(int i){ return (ll(1)<<i)-1; } bool inc(int a,int b,int c){ return a<=b&&b<=c; } template<class t> void mkuni(vc<t>&v){ sort(all(v)); v.erase(unique(all(v)),v.ed); } ll rand_int(ll l, ll r) { //[l, r] #ifdef LOCAL static mt19937_64 gen; #else static mt19937_64 gen(chrono::steady_clock::now().time_since_epoch().count()); #endif return uniform_int_distribution<ll>(l, r)(gen); } template<class t> void myshuffle(vc<t>&a){ rep(i,si(a))swap(a[i],a[rand_int(0,i)]); } template<class t> int lwb(const vc<t>&v,const t&a){ return lower_bound(all(v),a)-v.bg; } vvc<int> readGraph(int n,int m){ vvc<int> g(n); rep(i,m){ int a,b; cin>>a>>b; //sc.read(a,b); a--;b--; g[a].pb(b); g[b].pb(a); } return g; } vvc<int> readTree(int n){ return readGraph(n,n-1); } //やらないとは思うが,int=ll 状態で D=signed を入れると壊れるからね,注意してくれ //AGC031E //AGC034D //CF621G //負辺あったら壊れるからBellman-Fordとかやるといいんじゃない? template<class D> struct mincf{ using P=pair<D,int>; struct E{int to,rev,cap;D cost;}; int n; vvc<E> g; vc<D> h,d; vi pv,pe; mincf(int nn):n(nn),g(n),h(n),d(n),pv(n),pe(n){} pi ae(int a,int b,int cap,D cost){ //dmp2(a,b,cap,cost); pi res(a,g[a].size()); g[a].pb({b,(int)g[b].size(),cap,cost}); g[b].pb({a,(int)g[a].size()-1,0,-cost}); return res; } P go(int s,int t,int f){ priority_queue<P,vc<P>,greater<P>> q; fill(all(d),inf); d[s]=0; q.push(P(0,s)); while(q.size()){ D a; int v; tie(a,v)=q.top();q.pop(); if(d[v]<a)continue; if(v==t)break; rep(i,(int)g[v].size()){ E e=g[v][i]; if(e.cap>0){ D w=d[v]+e.cost+h[v]-h[e.to]; if(w<d[e.to]){ d[e.to]=w; q.push(P(w,e.to)); pv[e.to]=v; pe[e.to]=i; } } } } if(d[t]==inf)return P(0,0); rep(i,n) h[i]=min<D>(h[i]+min(d[i],d[t]),inf); int a=f; for(int v=t;v!=s;v=pv[v]) chmin(a,g[pv[v]][pe[v]].cap); for(int v=t;v!=s;v=pv[v]){ E& e=g[pv[v]][pe[v]]; e.cap-=a; g[e.to][e.rev].cap+=a; } return P(h[t],a); } pair<int,D> calc(int s,int t,int f){ int a=0; D res=0; while(f>0){ P w=go(s,t,f); if(w.b==0)break; a+=w.b; f-=w.b; res+=w.a*w.b; } return mp(a,res); } }; void slv(){ int n,m;cin>>n>>m; mincf<int> mcf(n); rep(i,m){ int a,b,c,d;cin>>a>>b>>c>>d; a--;b--; rep(_,2){ mcf.ae(a,b,1,c); mcf.ae(a,b,1,d); swap(a,b); } } print(mcf.calc(0,n-1,2).b); } signed main(){ cin.tie(0); ios::sync_with_stdio(0); cout<<fixed<<setprecision(20); //int t;cin>>t;rep(_,t) slv(); }