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Submission #306382

# Submission time Handle Problem Language Result Execution time Memory
306382 2020-09-25T10:47:26 Z juggernaut Dreaming (IOI13_dreaming) C++14
0 / 100
 1000 ms 11256 KB 
#include"dreaming.h"
//#include"grader.c"
#include<bits/stdc++.h>
#define fr first
#define sc second
using namespace std;
vector<pair<int,int>>g[100005];
bool vis[100005];
int diam,mx[100005],mm,id;
void dfs(int v,int p,int depth){
    mx[v]=max(mx[v],depth);
    if(depth>mm){
        mm=depth;
        id=v;
    }
    for(auto to:g[v])if(to.fr!=p)dfs(to.fr,v,depth+to.sc);
}
void go(int v,int p){
    mm=min(mm,mx[v]);
    diam=max(diam,mx[v]);
    for(auto to:g[v])if(to.fr!=p)go(to.fr,v);
}
int travelTime(int n,int m,int l,int x[],int y[],int z[]){
    for(int i=0;i<m;i++){
        g[x[i]].push_back({y[i],z[i]});
        g[y[i]].push_back({x[i],z[i]});
    }
    vector<int>st;
    for(int i=0;i<n;i++)if(!vis[i]){
        mm=0;
        dfs(i,i,0);
        mm=0;
        dfs(id,id,0);
        mm=0;
        dfs(id,id,0);
        mm=2e9;
        go(i,i);
        st.push_back(mm);
    }
    sort(st.begin(),st.end(),greater<int>());
    if(st.size()==1)return diam;
    else if(st.size()==2)return max(diam,st[0]+st[1]+l);
    else return max(diam,max(st[0]+st[1]+l,st[1]+st[2]+2*l));
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 11256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 11256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 11256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 35 ms 6016 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 11256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1059 ms 11256 KB Time limit exceeded
2 Halted 0 ms 0 KB -