#include "crocodile.h";
#include <bits/stdc++.h>
using namespace std;
vector<pair<int, int>> graph[100005];
int dist[2][100005];
bool done[100005];
int cnt[100005];
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq;
int travel_plan(int N, int M, int R[][2], int W[], int K, int E[]){
for(int i= 0; i<M; i++){
graph[R[i][0]].push_back({R[i][1], W[i]});
graph[R[i][1]].push_back({R[i][0], W[i]});
}
for(int i = 0; i<N; i++){
dist[0][i] = dist[1][i] = INT_MAX/2;
}
for(int i = 0; i<K; i++){
dist[0][E[i]] = dist[1][E[i]] = 0;
pq.push({0, E[i]});
}
while(pq.size()){
auto p = pq.top();
pq.pop();
if(!done[p.second]){
break;
}
int n = p.second;
done[n] = 1;
//cout << n << " " << dist[0][n] << " " << dist[1][n] << "\n";
for(auto e : graph[n]){
//cout << e.first << " " << e.second << "\n";
if(dist[0][e.first] >= dist[1][n] + e.second){
dist[1][e.first] = dist[0][e.first];
dist[0][e.first] = dist[1][n] + e.second;
cnt[e.first]++;
if(cnt[e.first] >= 2){
pq.push({dist[1][e.first], e.first});
}
}
else if(dist[1][e.first] > dist[1][n] + e.second){
dist[1][e.first] = dist[1][n] + e.second;
cnt[e.first]++;
if(cnt[e.first] >= 2){
pq.push({dist[1][e.first], e.first});
}
}
}
}
if(dist[1][0] == INT_MAX/2){
dist[1][0] = -1;
}
return dist[1][0];
}
/*
int sampleR[4][2] = {{0, 1}, {0, 2}, {3, 2}, {2, 4}};
int sampleL[4] = {2, 3, 1, 4};
int sampleP[3] = {1, 3, 4};
*/
/*
int sampleR[7][2] = {{0, 2}, {0, 3}, {3, 2}, {2, 1}, {0, 1}, {0, 4}, {3, 4}};
int sampleL[7] = {4, 3, 2, 10, 100, 7, 9};
int sampleP[2] = {1, 3};
int main(){
cout << travel_plan(5, 7, sampleR, sampleL, 2, sampleP);
}
*/
Compilation message
crocodile.cpp:1:23: warning: extra tokens at end of #include directive
#include "crocodile.h";
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
2680 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
2680 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
6 ms |
2680 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
