oj.uz

답안 #575604

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
575604 2022-06-11T06:39:40 Z Belgutei 꿈 (IOI13_dreaming) C++17
18 / 100
 60 ms 17052 KB 
#include "dreaming.h"
#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mk make_pair
#define IOS ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); 
#define MOD 1000000007
#define MOD1 1000000009
#define sqr(x) sqr((x)*(x))

void debug_out() { cerr << endl; }
template<typename Head, typename... Tail> void debug_out(Head H, Tail... T) { cerr << ' ' << H; debug_out(T...); }
#ifdef BE_DEBUG
#define debug(...) cerr << "\033[1;31m(" << #__VA_ARGS__ << "):\033[0m", debug_out(__VA_ARGS__)
#else
#define debug(...)
#endif

const int BB = 100005;

int par[BB];
vector<pair<int,int> > edge[BB];
bool visited[BB];
vector<int> v;
int a[BB],b[BB]; // 
int tmp;
multiset<int> s;
multiset<int> :: iterator it;

vector<int> gold;
int mn;

void dfs(int node) {
    //cout << node << ' ';
    visited[node] = 1;
    v.pb(node);
    for(auto x: edge[node]) {
        if(visited[x.ff] == 1) continue;
        a[x.ff] = x.ss;
        dfs(x.ff);
        b[node] = max(b[node], a[x.ff]);
        if(node == tmp) {
            s.insert(-(b[x.ff] + x.ss));
        }
    }
    a[node] += b[node];
}

void go(int node, int cost) {
    visited[node] = 1;
    if(s.size() != 0) {
        it = s.begin();
        mn = min(mn, max(b[node],cost - *it));
    }
    else {
        mn = min(mn, max(b[node], cost));
    }
    for(auto x: edge[node]) {
        if(visited[x.ff] == 1) continue;
        if(tmp == node) {
            it = s.lower_bound(-a[x.ff]);
            s.erase(it);
        }
        go(x.ff, x.ss + cost);
        s.insert(-a[x.ff]);
    }
}

int travelTime(int N, int M, int L, int A[], int B[], int T[]) {
    for(int i = 0; i < N; i ++) {
        par[i] = i;
    }
    for(int i = 0; i < M; i ++) {
        edge[A[i]].pb({B[i], T[i]});
        edge[B[i]].pb({A[i], T[i]});
    }
    for(int i = 0; i < N; i ++) {
        if(visited[i] == 1) continue;
        s.clear();
        v.clear();
        tmp = i;
        dfs(i);
        for(auto x: v) {
            visited[x] = 0;
        }
        mn = 1e9;
        go(i,0);
        gold.pb(mn);
    }
    sort(gold.begin(), gold.end());
    
    if(gold.size() == 1) {
        return gold[gold.size() - 1];
    }
    int q = gold.size() - 1;
    if(gold.size() == 2) {
        return gold[q] + gold[q - 1] + L;
    }
    return max(gold[q] + gold[q - 1] + L, gold[q - 1] + gold[q - 2] + L + L);
    return 0;
}

Subtask #1
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 60 ms 17052 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 2644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 60 ms 17052 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 28 ms 6476 KB Output is correct
2 Correct 20 ms 6480 KB Output is correct
3 Correct 22 ms 6468 KB Output is correct
4 Correct 27 ms 6452 KB Output is correct
5 Correct 20 ms 6524 KB Output is correct
6 Correct 21 ms 6952 KB Output is correct
7 Correct 25 ms 6704 KB Output is correct
8 Correct 23 ms 6392 KB Output is correct
9 Correct 20 ms 6448 KB Output is correct
10 Correct 21 ms 6608 KB Output is correct
11 Correct 2 ms 2644 KB Output is correct
12 Correct 6 ms 4432 KB Output is correct
13 Correct 6 ms 4480 KB Output is correct
14 Correct 6 ms 4432 KB Output is correct
15 Correct 7 ms 4432 KB Output is correct
16 Correct 6 ms 4432 KB Output is correct
17 Correct 5 ms 4176 KB Output is correct
18 Correct 8 ms 4432 KB Output is correct
19 Correct 8 ms 4432 KB Output is correct
20 Correct 2 ms 2644 KB Output is correct
21 Correct 2 ms 2644 KB Output is correct
22 Correct 2 ms 2644 KB Output is correct
23 Correct 5 ms 4432 KB Output is correct

Subtask #5
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 2644 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 60 ms 17052 KB Output isn't correct
2 Halted 0 ms 0 KB -