oj.uz

답안 #1079821

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1079821 2024-08-29T02:08:39 Z _rain_ 악어의 지하 도시 (IOI11_crocodile) C++14
0 / 100
 2 ms 1636 KB 
//#include "crocodile.h"
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fixbug false

//... READ INPUT
const int maxn = 50000;
const int maxm = 10000000;


const int INF = 1e9;
vector<pair<int,int>> g[maxn+2];
int d[maxn+2][2];
bool ex[maxn+2];
#define ii pair<ll,int>
#define fi first
#define se second

int travel_plan(int n , int m , int R[][2] , int L[] , int k , int P[]){
    for (int i = 0; i < m; ++i) {
        g[R[i][0]].push_back({R[i][1] , L[i]});
        g[R[i][1]].push_back({R[i][0] , L[i]});
        if (fixbug){
            cout << R[i][0] << ' ' << R[i][1] << ' ' << L[i] << '\n';
        }
    }
    priority_queue<ii,vector<ii>,greater<ii>> q;
    for (int i = 0; i < n; ++i) d[i][0] = d[i][1] = INF;
    ll ans = d[0][0];
    for (int i = 0 ; i < k; ++i){
        d[P[i]][0] = d[P[i]][1] = 0;
        q.push({0 , P[i]});
    }
    while (q.size()){
        int u = q.top().second; int cost = q.top().first;
        q.pop();
        if (cost != d[u][0]) continue;
        if (fixbug){
            cout << "(DEBUG)\n";
            cout << u << ' ' << cost << "\n";
        }

        for (auto & x : g[u]){
            int v = x.first , w = x.second;
            if (d[v][1] > cost + w){
                d[v][0] = d[v][1];
                d[v][1] = cost + w;
                q.push({d[v][1] , v});
            }
            else if (d[v][0] > cost + w){
                d[v][0] = cost + w;
                q.push({d[v][0] , v});
            }
        }
    }
    if (fixbug){
        cout << ans << '\n';
        for (int i = 0; i < n; ++i) cout << d[i][0] << '\n';
    }
    return d[0][0];
}

Subtask #1
0 / 46.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Incorrect 1 ms 1636 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Incorrect 1 ms 1636 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Incorrect 1 ms 1636 KB Output isn't correct
5 Halted 0 ms 0 KB -