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Submission #284305

# Submission time Handle Problem Language Result Execution time Memory
284305 2020-08-27T08:01:56 Z 최은수(#5747) Aesthetic (NOI20_aesthetic) C++17
38 / 100
 615 ms 63480 KB 
#include<iostream>
#include<vector>
#include<queue>
#include<algorithm>
#define ep emplace
#define eb emplace_back
#define fi first
#define se second
#define all(x) (x).begin(),(x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int>pi;
typedef pair<ll,ll>pl;
const int inf=1e9+7;
const ll INF=1e18;
ll dis[300010];
vector<pl>adj[300010];
inline void dijk(int n)
{
    fill(dis,dis+n+1,INF);
    priority_queue<pl,vector<pl>,greater<pl> >pq;
    pq.ep(dis[1]=0,1);
    while(!pq.empty())
    {
        int x=pq.top().se;
        ll w=pq.top().fi;
        pq.pop();
        if(dis[x]!=w)
            continue;
        for(pl&t:adj[x])
            if(dis[t.fi]>w+t.se)
                pq.ep(dis[t.fi]=w+t.se,t.fi);
    }
    return;
}
vector<pi>adj2[300010];
int dct;
int disc[300010];
int bmn;
int dfs(int x,int p)
{
    int ret=disc[x]=++dct;
    for(pi&t:adj2[x])
    {
        if(t.fi==p)
            p=0;
        else if(disc[t.fi]==0)
        {
            int cur=dfs(t.fi,x);
            if(cur>disc[x])
                bmn=min(bmn,t.se);
            ret=min(ret,cur);
        }
        else
            ret=min(ret,disc[t.fi]);
    }
    return ret;
}
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,m;
    cin>>n>>m;
    vector<pair<pi,ll> >edge(m);
    for(auto&t:edge)
        cin>>t.fi.fi>>t.fi.se>>t.se,
        adj[t.fi.fi].eb(t.fi.se,t.se),adj[t.fi.se].eb(t.fi.fi,t.se);
    dijk(n);
    for(int i=0;i<m;i++)
    {
        auto&t=edge[i];
        if(abs(dis[t.fi.fi]-dis[t.fi.se])==t.se)
            adj2[t.fi.fi].eb(t.fi.se,i),adj2[t.fi.se].eb(t.fi.fi,i);
    }
    bmn=m;
    dfs(1,0);
    ll mx=0;
    for(int i=m-1;i>bmn;i--)
        mx=max(mx,edge[i].se);
    cout<<dis[n]+mx<<endl;
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 14464 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 14464 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 613 ms 48760 KB Output is correct
2 Correct 607 ms 48928 KB Output is correct
3 Correct 580 ms 48456 KB Output is correct
4 Correct 585 ms 48504 KB Output is correct
5 Correct 589 ms 48524 KB Output is correct
6 Correct 615 ms 49408 KB Output is correct
7 Correct 606 ms 49400 KB Output is correct
8 Correct 599 ms 49656 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 598 ms 49400 KB Output is correct
2 Correct 609 ms 48888 KB Output is correct
3 Correct 604 ms 48888 KB Output is correct
4 Correct 602 ms 49400 KB Output is correct
5 Correct 591 ms 48636 KB Output is correct
6 Correct 596 ms 49020 KB Output is correct
7 Correct 606 ms 49016 KB Output is correct
8 Correct 598 ms 49016 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 49800 KB Output is correct
2 Correct 215 ms 45176 KB Output is correct
3 Correct 349 ms 48304 KB Output is correct
4 Correct 355 ms 52344 KB Output is correct
5 Correct 350 ms 52344 KB Output is correct
6 Correct 354 ms 52368 KB Output is correct
7 Correct 356 ms 52228 KB Output is correct
8 Correct 380 ms 52600 KB Output is correct
9 Correct 361 ms 52344 KB Output is correct
10 Correct 369 ms 52728 KB Output is correct
11 Correct 369 ms 52472 KB Output is correct
12 Correct 590 ms 54520 KB Output is correct
13 Correct 358 ms 52472 KB Output is correct
14 Correct 160 ms 54156 KB Output is correct
15 Correct 177 ms 63480 KB Output is correct
16 Correct 566 ms 54624 KB Output is correct
17 Correct 551 ms 53364 KB Output is correct
18 Correct 555 ms 53996 KB Output is correct
19 Correct 218 ms 49656 KB Output is correct
20 Correct 218 ms 49656 KB Output is correct
21 Correct 228 ms 49528 KB Output is correct
22 Correct 222 ms 49656 KB Output is correct

Subtask #6
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 545 ms 49800 KB Output is correct
2 Correct 215 ms 45176 KB Output is correct
3 Correct 349 ms 48304 KB Output is correct
4 Correct 355 ms 52344 KB Output is correct
5 Correct 350 ms 52344 KB Output is correct
6 Correct 354 ms 52368 KB Output is correct
7 Correct 356 ms 52228 KB Output is correct
8 Correct 380 ms 52600 KB Output is correct
9 Correct 361 ms 52344 KB Output is correct
10 Correct 369 ms 52728 KB Output is correct
11 Correct 369 ms 52472 KB Output is correct
12 Correct 590 ms 54520 KB Output is correct
13 Correct 358 ms 52472 KB Output is correct
14 Correct 160 ms 54156 KB Output is correct
15 Correct 177 ms 63480 KB Output is correct
16 Correct 566 ms 54624 KB Output is correct
17 Correct 551 ms 53364 KB Output is correct
18 Correct 555 ms 53996 KB Output is correct
19 Correct 218 ms 49656 KB Output is correct
20 Correct 218 ms 49656 KB Output is correct
21 Correct 228 ms 49528 KB Output is correct
22 Correct 222 ms 49656 KB Output is correct
23 Correct 547 ms 50400 KB Output is correct
24 Correct 230 ms 49784 KB Output is correct
25 Incorrect 290 ms 44536 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #7
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 14464 KB Output isn't correct
2 Halted 0 ms 0 KB -