Submission #492314

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
492314	2021-12-06 15:40:19	ponytail	Crocodile's Underground City (IOI11_crocodile)	C++17	0 / 100	0 ms	204 KiB

crocodile

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//#include "crocodile.h"
#include <stdio.h>
#include <stdlib.h>
#include <bits/stdc++.h>
using namespace std;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]);
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
    long long dist[N];
    for(int i=0; i<N; i++) dist[i] = 1e15;
    for(int i=0; i<K; i++) dist[P[i]] = 0;
    bool vis[N];
    for(int i=0; i<N; i++) vis[i] = 0;
    priority_queue<pair<long long, int>, vector<pair<long long, int> >, greater<pair<long long, int> > >pq;
    for(int i=0; i<N; i++) pq.push({dist[i], i});
    vector<pair<int, long long> > adj[N];
    for(int i=0; i<M; i++) {
        adj[R[i][0]].push_back({R[i][1], L[i]});
        adj[R[i][1]].push_back({R[i][0], L[i]});
    }
    while(pq.size()) {
        pair<long long, int> t = pq.top(); pq.pop();
        if(!vis[t.second]) {
            vis[t.second] = 1;
            for(pair<int, long long> x : adj[t.second]) {
                if(!vis[x.first] && dist[t.second] != 1e15 && dist[x.first] > dist[t.second] + x.second) {
                    dist[x.first] = dist[t.second] + x.second;
 
 
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• Subtask 1: 0 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11