oj.uz

Submission #83987

# Submission time Handle Problem Language Result Execution time Memory
83987 2018-11-12T07:43:19 Z Linst90 Triumphal arch (POI13_luk) C++11
0 / 100
 302 ms 30780 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<bits/stdc++.h>
using namespace::std;
int delay[300005];
vector<vector<int>> v;

void DFS(int i,int d){
    //cout<<i<<'\n';
    delay[i]=d;
    for(auto a:v[i]){
        //cout<<a<<'\n';
        if(a!=1&&!delay[a]){
            DFS(a,d+1);
        }
    }
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
    cin>>n;
    for(int i=0;i<n+1;i++){
        vector<int> t;
        v.push_back(t);
    }
    for(int i=0,l,r;i<n-1;i++){
        cin>>l>>r;
        //delay[i+1]=-1;
        v[l].push_back(r);
        v[r].push_back(l);
    }
    DFS(1,0);
    int maxn=0;
    for(int i=1;i<=n;i++){
        //cout<<i<<' '<<v[i].end()-v[i].begin()-delay[i]<<'\n';
        maxn=max(maxn,(int)(v[i].end()-v[i].begin()-delay[i]));
    }
    cout<<maxn<<'\n';
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 404 KB Output is correct
2 Incorrect 2 ms 512 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 512 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 512 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 680 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 6 ms 1404 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 16 ms 2980 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 62 ms 8432 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 177 ms 16940 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 296 ms 26872 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 302 ms 30780 KB Output isn't correct
2 Halted 0 ms 0 KB -