Submission #582714

# Submission time Handle Problem Language Result Execution time Memory
582714 2022-06-24T10:34:21 Z 1ne Crocodile's Underground City (IOI11_crocodile) C++14
0 / 100
0 ms 212 KB
#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
	vector<vector<pair<int,int>>>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]});
	}
	const int maxn = 1e9;
	priority_queue<pair<long long,long long>>q;
	q.push({0,0});
	vector<vector<long long>>dist(N,vector<long long>(2,maxn));
	dist[0][0] = 0;
	dist[0][1] = 0;
	vector<bool>visited(N,false);
	while(!q.empty()){
		auto u = q.top();
		q.pop();
		visited[u.second] = false;
		for (auto x:adj[u.second]){
			if (dist[x.first][0] > dist[u.second][0] + x.second){
				dist[x.first][1] = dist[x.first][0];
				dist[x.first][0] = dist[u.second][0] + x.second;
				if (!visited[x.first]){
					visited[x.first] = true;
					q.push({-dist[x.first][1],x.first});
				}
			}
			else if (dist[x.first][1] > dist[u.second][0] + x.second){
				dist[x.first][1] = dist[u.second][0] + x.second;
				if (!visited[x.first]){
					visited[x.first] = true;
					q.push({-dist[x.first][1],x.first});
				}
			}
		}
	}
	long long ans = 0;
	for (int i = 0;i<K;++i){
		ans = max(ans,dist[P[i]][0]);
	}
	return ans;
}
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -