oj.uz

Submission #980452

# Submission time Handle Problem Language Result Execution time Memory
980452 2024-05-12T07:37:33 Z Nexus Cyberland (APIO23_cyberland) C++17
44 / 100
 40 ms 37812 KB 
#include <bits/stdc++.h>
#define ll long long
 
using namespace std;
 
const ll N=1e6+9,M=2e18+9,mod=1e9+7;
 
ll vis[N],dis0[N],dish[N],nd;
priority_queue<pair<ll,ll>>q;
vector<pair<ll,ll>>v[N];
 
double solve(int n, int m, int k, int h, vector<int> x, vector<int>y, vector<int> c, vector<int> arr)
{
 
    for(ll i=0;i<n;++i)v[i].clear();
 
    for(ll i=0;i<m;++i)
    {
        v[x[i]].push_back({c[i],y[i]});
        v[y[i]].push_back({c[i],x[i]});
    }
 
    for(ll i=0;i<n;++i)dis0[i]=M,dish[i]=M;
 
    dis0[0]=0,dish[h]=0;
    q.push({0,0});
 
    for(ll i=0;i<n;++i)vis[i]=0;
    while(q.size())
    {
        nd=q.top().second;
        q.pop();
        if(vis[nd])continue;
        vis[nd]=1;
        if(nd==h)continue;
        for(auto i:v[nd])
        {
            if(dis0[nd]+i.first<dis0[i.second])
            {
                dis0[i.second]=dis0[nd]+i.first;
                q.push({-dis0[i.second],i.second});
            }
        }
    }
    while(q.size())q.pop();
 
 
    q.push({0,h});
 
    for(ll i=0;i<n;++i)vis[i]=0;
    while(q.size())
    {
        nd=q.top().second;
        q.pop();
        if(vis[nd])continue;
        vis[nd]=1;
        for(auto i:v[nd])
        {
            if(dish[nd]+i.first<dish[i.second])
            {
                dish[i.second]=dish[nd]+i.first;
                q.push({-dish[i.second],i.second});
            }
        }
    }
 
    ll ans=dis0[h];
    for(ll i=0;i<n;++i)
    {
        if(max(dis0[i],dish[i])==M)continue;
        //cout<<i<<' '<<dis0[i]<<' '<<dish[i]<<'\n';
        if(!arr[i])ans=min(ans,dish[i]);
        else ans=min(ans,dis0[i]+dish[i]);
    }
 
    if(ans==M)ans=-1;
 
    return ans;
}
 
/*
int main()
{
    ios::sync_with_stdio(0);
    //cin.tie(0);cout.tie(0);
 
    int T;
    cin>>T;
  while (T--){
    int n,m,K,H;
    cin>>n>>m>>K>>H;
    vector<int> x(m);
    vector<int> y(m);
    vector<int> c(m);
    vector<int> arr(n);
    for (int i=0;i<n;i++)cin>>arr[i];
    for (int i=0;i<m;i++)
        cin>>x[i]>>y[i]>>c[i];
    cout<<solve(n, m, K, H, x, y, c, arr)<<'\n';
  }
}
*/

Subtask #1
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 20 ms 29272 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 29528 KB Correct.
2 Correct 28 ms 29532 KB Correct.
3 Correct 28 ms 29520 KB Correct.
4 Correct 30 ms 29528 KB Correct.
5 Correct 28 ms 29444 KB Correct.
6 Correct 27 ms 32344 KB Correct.
7 Correct 32 ms 32348 KB Correct.
8 Correct 18 ms 33112 KB Correct.
9 Correct 25 ms 29404 KB Correct.
10 Correct 28 ms 29276 KB Correct.

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 29272 KB Correct.
2 Correct 32 ms 29272 KB Correct.
3 Correct 29 ms 29528 KB Correct.
4 Correct 27 ms 29276 KB Correct.
5 Correct 27 ms 29420 KB Correct.
6 Correct 11 ms 32092 KB Correct.

Subtask #4
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 29 ms 35920 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #5
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 29528 KB Correct.
2 Correct 26 ms 29536 KB Correct.
3 Correct 25 ms 29532 KB Correct.
4 Correct 27 ms 32604 KB Correct.
5 Correct 22 ms 29276 KB Correct.

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 25 ms 29556 KB Correct.
2 Correct 26 ms 29528 KB Correct.
3 Correct 40 ms 37812 KB Correct.
4 Correct 20 ms 32360 KB Correct.
5 Correct 26 ms 29416 KB Correct.
6 Correct 25 ms 29532 KB Correct.

Subtask #7
0.0 / 29.0

# Verdict Execution time Memory Grader output
1 Incorrect 32 ms 29528 KB Wrong Answer.
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 3.0

# Verdict Execution time Memory Grader output
1 Incorrect 25 ms 29528 KB Wrong Answer.
2 Halted 0 ms 0 KB -