oj.uz

답안 #998596

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
998596 2024-06-14T10:05:30 Z Muhammet 꿈 (IOI13_dreaming) C++17
18 / 100
 159 ms 37588 KB 
#include <bits/stdc++.h>
#include "dreaming.h"
using namespace std;

#define N 200005
#define ff first
#define sz(s) (int)s.size()
#define ss second
#define ll long long

vector <pair<ll,ll>> v[N];

vector <ll> p[N], v1;

map <ll,bool> vis, vi;

ll mn, f[N];

ll dfs(ll x){
    vis[x] = 1;
    for(auto i : v[x]){
        if(vis[i.ff] == 0){
            p[x].push_back(dfs(i.ff) + i.ss);
        }
    }
    p[x].push_back(0);
    sort(p[x].begin(), p[x].end());
    return p[x].back();
}

void df(ll x){
    vi[x] = 1;
    mn = min(mn,max(p[x].back(),f[x]));
    for(auto i : v[x]){
        if(vi[i.ff] == 0){
            ll y = p[x].back();
            if(y == p[i.ff].back() + i.ss) y = p[x][sz(p[x]) - 2];
            f[i.ff] = (max(y,f[x]) + i.ss);
        }
    }
    for(auto i : v[x]){
        if(vi[i.ff] == 1) continue;
        df(i.ff);
    }
    return;
}

int travelTime(int n, int m, int l, int a[], int b[], int t[]) {
    for(int i = 0; i < m; i++){
        v[a[i]].push_back({b[i],t[i]});
        v[b[i]].push_back({a[i],t[i]});
    }

    for(int i = 0; i < n; i++){
        if(vis[i] == 0){
            dfs(i);
            mn = 1e9;
            df(i);
            v1.push_back(mn);
            // cout << i << ' ' << mn << '\n';
        }
    }

    sort(v1.begin(), v1.end());
    // assert(v1.size() == 2);
    // return v1.back() + l + v1[sz(v1) - 2];
    ll k = v1.back();
    if(sz(v1) >= 2) k = max(k,v1.back() + l + v1[sz(v1) - 2]);
    if(sz(v1) >= 3) k = max(k, v1[sz(v1) - 3] + l*2 + v1[sz(v1) - 2]);


    return k;
}

Subtask #1
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 159 ms 37588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 12380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 159 ms 37588 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 75 ms 29644 KB Output is correct
2 Correct 75 ms 29596 KB Output is correct
3 Correct 75 ms 29440 KB Output is correct
4 Correct 77 ms 29464 KB Output is correct
5 Correct 74 ms 29384 KB Output is correct
6 Correct 83 ms 31176 KB Output is correct
7 Correct 81 ms 30356 KB Output is correct
8 Correct 87 ms 29128 KB Output is correct
9 Correct 76 ms 29128 KB Output is correct
10 Correct 76 ms 30412 KB Output is correct
11 Correct 2 ms 12380 KB Output is correct
12 Correct 36 ms 28780 KB Output is correct
13 Correct 33 ms 28616 KB Output is correct
14 Correct 34 ms 28616 KB Output is correct
15 Correct 39 ms 28668 KB Output is correct
16 Correct 33 ms 28616 KB Output is correct
17 Correct 34 ms 28624 KB Output is correct
18 Correct 36 ms 28876 KB Output is correct
19 Correct 34 ms 28616 KB Output is correct
20 Correct 2 ms 10332 KB Output is correct
21 Correct 2 ms 10332 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct
23 Correct 40 ms 28612 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 2 ms 12380 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 159 ms 37588 KB Output isn't correct
2 Halted 0 ms 0 KB -