#include "crocodile.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
#define ll long long
const int N=1e5+50;
const ll inf=1e18;
vector<pair<int,ll> >E[N];
map<pair<int,int>,bool>mapa;
map<pair<int,int>,ll>grana;
int deg[N],dp[N];
bool nesto[N],was[N];
int travel_plan(int n, int m, int R[][2], int L[], int K, int P[])
{
for(int i=0;i<m;i++){
E[R[i][0]].pb({R[i][1],L[i]}),E[R[i][1]].pb({R[i][0],L[i]});
deg[R[i][0]]++,deg[R[i][1]]++;
grana[{R[i][0],R[i][1]}]=grana[{R[i][1],R[i][0]}]=L[i];
}
for(int i=0;i<K;i++) nesto[P[i]]=true,dp[P[i]]=0;
vector<int>leaf;
set<int>pored;
for(int i=0;i<n;i++){
if(deg[i]==1 && nesto[i]){
leaf.pb(i),was[i]=true;
for(auto j:E[i]) pored.insert(j.fi);
}
}
while(!was[0]){
for(auto i=pored.begin();i!=pored.end();i=next(i)){
vector<pair<int,int> >temp;
for(auto j:E[*i]){
if(deg[j.fi]==1) temp.pb({j.se+dp[j.fi],j.fi});
}
if(temp.size()>=2){
sort(temp.begin(),temp.end());
dp[*i]=temp[1].fi;
for(auto j:temp){
deg[j.se]--;
deg[*i]--;
}
leaf.pb(*i),was[*i]=true;
pored.erase(*i);
for(auto j:E[*i]){
if(deg[j.fi]>=2) pored.insert(j.fi);
}
break;
}
}
}
return dp[0];
/*int U=0;int res=0;
while(!nesto[U]){
//printf("%i\n",U);
ll dist[n+10];int parent[n+10];
memset(parent,-1,sizeof(parent));
for(int i=0;i<n;i++) dist[i]=inf;
dist[U]=0;
priority_queue<pair<ll,int> >pq;
pq.push({0,U});
while(!pq.empty()){
int u=pq.top().se;ll w=-pq.top().fi;
pq.pop();
if(w>dist[u]) continue;
for(auto i:E[u]){
if(mapa[{i.fi,u}]) continue;
if(dist[i.fi]>dist[u]+i.se){
dist[i.fi]=dist[u]+i.se;
parent[i.fi]=u;
pq.push({-dist[i.fi],i.fi});
}
}
}
//for(int i=0;i<n;i++) printf("%i: %i %i\n",i,dist[i],parent[i]);
//printf("\n");
int mn=0;
for(int i=0;i<K;i++) if(dist[P[i]]<dist[P[mn]]) mn=i;
int tmp=mn;mn=P[mn];
//printf("%i %i\n",tmp,mn);
while(parent[mn]!=U) mn=parent[mn];
mapa[{U,mn}]=mapa[{mn,U}]=true;
mn=0;if(tmp==0) mn=K-1;
for(int i=0;i<K;i++) if(dist[P[i]]<dist[P[mn]] && i!=tmp) mn=i;
mn=P[mn];
while(parent[mn]!=U) mn=parent[mn];
mapa[{U,mn}]=mapa[{mn,U}]=true;
res+=grana[{U,mn}];
U=mn;
//printf("%i\n",mn);
}
return res;*/
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
6492 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
6492 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
6492 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
