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Submission #385309

# Submission time Handle Problem Language Result Execution time Memory
385309 2021-04-04T04:02:12 Z Pichon5 Crocodile's Underground City (IOI11_crocodile) C++17
100 / 100
 624 ms 44864 KB 
#include "crocodile.h"
#include<bits/stdc++.h>
#define lcm(a,b) (a/__gcd(a,b))*b
#define fast ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define ll long long int
#define vi vector<int>
#define vll vector<ll>
#define pb push_back
#define F first
#define S second
using namespace std;
vector<vector<pair<int,int> > >G;
const int INF=2*1e9;
int dp[1005];
void dfs(int nodo,int p){
    vi v;
    for(auto it : G[nodo]){
        if(it.F==p)continue;
        dfs(it.F,nodo);
        v.pb(dp[it.F]+it.S);
    }
    sort(v.begin(),v.end());
    if(G[nodo].size()==1){
        dp[nodo]=0;
    }else{
        dp[nodo]=v[1];
    }
}
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    //R[i][0] --- R[i][1] con peso L[i]
    G.assign(N+1,vector<pair<int,int> >());
    int dis[N+1][2];
    for(int i=0;i<=N;i++){
        dis[i][0]=dis[i][1]=INF;
    }
    for(int i=0;i<M;i++){
        int a=R[i][0],b=R[i][1],w=L[i];
        G[a].pb({b,w});
        G[b].pb({a,w});
    }
    priority_queue<pair<int,int> >q;
    for(int i=0;i<K;i++){
        dis[P[i]][0]=dis[P[i]][1]=0;
        q.push({0,P[i]});
    }
    vector<bool>vis(N+1,false);
    while(!q.empty()){
        int nodo=q.top().S;
        q.pop();
        if(vis[nodo])continue;
        vis[nodo]=1;
        for(auto it : G[nodo]){
            int D=dis[nodo][1];
            if(D+it.S<dis[it.F][0]){
                dis[it.F][1]=dis[it.F][0];
                dis[it.F][0]=D+it.S;
                if(dis[it.F][1]!=INF){
                    q.push({-dis[it.F][1],it.F});
                }
            }else{
                if(D+it.S<dis[it.F][1]){
                    dis[it.F][1]=D+it.S;
                    q.push({-dis[it.F][1],it.F});
                }
            }
        }
    }
    return dis[0][1];
}
/*
5 7 2
0 2 4
0 3 3
3 2 2
2 1 10
0 1 100
0 4 7
3 4 9
1 3
14
*/

Subtask #1
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct

Subtask #2
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 4 ms 748 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 364 KB Output is correct
4 Correct 2 ms 364 KB Output is correct
5 Correct 2 ms 492 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 2 ms 364 KB Output is correct
8 Correct 2 ms 364 KB Output is correct
9 Correct 3 ms 620 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 4 ms 748 KB Output is correct
13 Correct 4 ms 748 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 364 KB Output is correct
16 Correct 479 ms 40036 KB Output is correct
17 Correct 80 ms 10476 KB Output is correct
18 Correct 100 ms 11884 KB Output is correct
19 Correct 624 ms 44864 KB Output is correct
20 Correct 310 ms 34028 KB Output is correct
21 Correct 39 ms 4588 KB Output is correct
22 Correct 344 ms 30188 KB Output is correct