oj.uz

Submission #922099

# Submission time Handle Problem Language Result Execution time Memory
922099 2024-02-05T04:26:42 Z Aiperiii Commuter Pass (JOI18_commuter_pass) C++14
100 / 100
 472 ms 28420 KB 
#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
using namespace std;
const int N=1e5+5;
vector <pair <int,int> >g[N];
int ds[N],dv[N],du[N],vis[N],dpU[N],dpV[N];
int res=0;
void dfs(int v){
   if(vis[v])return;
   vis[v]=1;
   dpU[v]=du[v];dpV[v]=dv[v];
   for(auto to : g[v]){
      if(ds[v]==ds[to.ff]+to.ss){
         dfs(to.ff);
         dpU[v]=min(dpU[v],dpU[to.ff]);
         dpV[v]=min(dpV[v],dpV[to.ff]);
      }
   }
   res=min(res,dpU[v]+dv[v]);
   res=min(res,dpV[v]+du[v]);
}
signed main(){
   int n,m,s,t,u,w;
   cin>>n>>m>>s>>t>>u>>w;
   for(int i=0;i<m;i++){
      int a,b,c;
      cin>>a>>b>>c;
      g[a].pb({b,c});
      g[b].pb({a,c});
   }
   set <pair <int,int> > st;
   for(int i=1;i<=n;i++){
      ds[i]=1e18;du[i]=1e18;dv[i]=1e18;
   }
   ds[s]=0;
   st.insert({0,s});
   while(!st.empty()){
      int v=st.begin()->second;
      st.erase(st.begin());
      for(auto to : g[v]){
         if(ds[to.ff]>ds[v]+to.ss){
            st.erase({ds[to.ff],to.ff});
            ds[to.ff]=ds[v]+to.ss;
            st.insert({ds[to.ff],to.ff});
         }
      }
   }
   du[u]=0;
   st.insert({0,u});
   while(!st.empty()){
      int v=st.begin()->second;
      st.erase(st.begin());
      for(auto to : g[v]){
         if(du[to.ff]>du[v]+to.ss){
            st.erase({du[to.ff],to.ff});
            du[to.ff]=du[v]+to.ss;
            st.insert({du[to.ff],to.ff});
         }
      }
   }
   dv[w]=0;
   st.insert({0,w});
   while(!st.empty()){
      int v=st.begin()->second;
      st.erase(st.begin());
      for(auto to : g[v]){
         if(dv[to.ff]>dv[v]+to.ss){
            st.erase({dv[to.ff],to.ff});
            dv[to.ff]=dv[v]+to.ss;
            st.insert({dv[to.ff],to.ff});
         }
      }
   }
   res=du[w];
   dfs(t);
   cout<<res<<"\n";
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 359 ms 24476 KB Output is correct
2 Correct 333 ms 23376 KB Output is correct
3 Correct 311 ms 28388 KB Output is correct
4 Correct 332 ms 22656 KB Output is correct
5 Correct 327 ms 23344 KB Output is correct
6 Correct 378 ms 22488 KB Output is correct
7 Correct 330 ms 23376 KB Output is correct
8 Correct 323 ms 23464 KB Output is correct
9 Correct 362 ms 21972 KB Output is correct
10 Correct 268 ms 22284 KB Output is correct
11 Correct 106 ms 17804 KB Output is correct
12 Correct 367 ms 23728 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 339 ms 25936 KB Output is correct
2 Correct 345 ms 25420 KB Output is correct
3 Correct 328 ms 24996 KB Output is correct
4 Correct 386 ms 25408 KB Output is correct
5 Correct 354 ms 25936 KB Output is correct
6 Correct 314 ms 27984 KB Output is correct
7 Correct 350 ms 28240 KB Output is correct
8 Correct 353 ms 25524 KB Output is correct
9 Correct 319 ms 25936 KB Output is correct
10 Correct 344 ms 25188 KB Output is correct
11 Correct 114 ms 19420 KB Output is correct
12 Correct 307 ms 28420 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 7004 KB Output is correct
2 Correct 2 ms 5212 KB Output is correct
3 Correct 2 ms 5212 KB Output is correct
4 Correct 28 ms 8532 KB Output is correct
5 Correct 15 ms 7004 KB Output is correct
6 Correct 2 ms 5304 KB Output is correct
7 Correct 3 ms 5212 KB Output is correct
8 Correct 4 ms 5524 KB Output is correct
9 Correct 2 ms 5212 KB Output is correct
10 Correct 15 ms 7004 KB Output is correct
11 Correct 1 ms 5212 KB Output is correct
12 Correct 1 ms 5212 KB Output is correct
13 Correct 2 ms 5212 KB Output is correct
14 Correct 2 ms 5264 KB Output is correct
15 Correct 2 ms 5212 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 359 ms 24476 KB Output is correct
2 Correct 333 ms 23376 KB Output is correct
3 Correct 311 ms 28388 KB Output is correct
4 Correct 332 ms 22656 KB Output is correct
5 Correct 327 ms 23344 KB Output is correct
6 Correct 378 ms 22488 KB Output is correct
7 Correct 330 ms 23376 KB Output is correct
8 Correct 323 ms 23464 KB Output is correct
9 Correct 362 ms 21972 KB Output is correct
10 Correct 268 ms 22284 KB Output is correct
11 Correct 106 ms 17804 KB Output is correct
12 Correct 367 ms 23728 KB Output is correct
13 Correct 339 ms 25936 KB Output is correct
14 Correct 345 ms 25420 KB Output is correct
15 Correct 328 ms 24996 KB Output is correct
16 Correct 386 ms 25408 KB Output is correct
17 Correct 354 ms 25936 KB Output is correct
18 Correct 314 ms 27984 KB Output is correct
19 Correct 350 ms 28240 KB Output is correct
20 Correct 353 ms 25524 KB Output is correct
21 Correct 319 ms 25936 KB Output is correct
22 Correct 344 ms 25188 KB Output is correct
23 Correct 114 ms 19420 KB Output is correct
24 Correct 307 ms 28420 KB Output is correct
25 Correct 15 ms 7004 KB Output is correct
26 Correct 2 ms 5212 KB Output is correct
27 Correct 2 ms 5212 KB Output is correct
28 Correct 28 ms 8532 KB Output is correct
29 Correct 15 ms 7004 KB Output is correct
30 Correct 2 ms 5304 KB Output is correct
31 Correct 3 ms 5212 KB Output is correct
32 Correct 4 ms 5524 KB Output is correct
33 Correct 2 ms 5212 KB Output is correct
34 Correct 15 ms 7004 KB Output is correct
35 Correct 1 ms 5212 KB Output is correct
36 Correct 1 ms 5212 KB Output is correct
37 Correct 2 ms 5212 KB Output is correct
38 Correct 2 ms 5264 KB Output is correct
39 Correct 2 ms 5212 KB Output is correct
40 Correct 415 ms 24820 KB Output is correct
41 Correct 344 ms 22036 KB Output is correct
42 Correct 400 ms 24116 KB Output is correct
43 Correct 127 ms 18516 KB Output is correct
44 Correct 171 ms 18528 KB Output is correct
45 Correct 472 ms 22988 KB Output is correct
46 Correct 310 ms 22588 KB Output is correct
47 Correct 337 ms 23288 KB Output is correct
48 Correct 138 ms 15564 KB Output is correct
49 Correct 285 ms 24444 KB Output is correct
50 Correct 264 ms 23032 KB Output is correct
51 Correct 276 ms 22864 KB Output is correct