oj.uz

Submission #83996

# Submission time Handle Problem Language Result Execution time Memory
83996 2018-11-12T08:44:57 Z Linst90 Triumphal arch (POI13_luk) C++11
0 / 100
 327 ms 19412 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<bits/stdc++.h>
using namespace::std;
long long int delay[300005];
vector<vector<long long int>> v;

void DFS(long long int i,long long int d){
    //cout<<i<<'\n';
    delay[i]=d;
    for(long long int a=0;a<v[i].end()-v[i].begin();a++){
        //cout<<a<<'\n';
        if(delay[a]==-1){
            DFS(a,d+1);
        }
    }
}

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

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 508 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 508 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 1264 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 27 ms 2420 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 57 ms 6828 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 161 ms 13152 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 306 ms 19412 KB Output isn't correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 327 ms 19412 KB Output isn't correct
2 Halted 0 ms 0 KB -