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c_cpp
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#include <bits/stdc++.h>
#define endl '\n'
using namespace std;
const int INF = 1000000000;
struct WD
{
int next;
// int water;
int dist;
};
struct cmp{
bool operator()(const WD &a, const WD &b){
return a.dist>b.dist;
}
};
int waters[100001];
int dp[100001];
int dp_water[100001];
bool vis[100001];
vector<WD> graph[100001];
int town, road, start, arrive, dis, target;
void dijstra(int start, int target){
// 거리의 최소 with 물의 max
fill(dp, dp+100001, INF);
dp[start] = 0; //
dp_water[start] = waters[start];
priority_queue<WD, vector<WD>, cmp> pq;
pq.push({start,0});
while(!pq.empty()){
WD cur = pq.top();
int cur_idx = cur.next;
int cur_dist = cur.dist;
pq.pop();
if(cur_idx == target){
cout << cur_dist << " " << dp_water[target] << endl;
return;
}
for(WD next_node : graph[cur_idx]){
int next_idx = next_node.next;
int next_dis = cur_dist + next_node.dist;
if(vis[next_idx]) continue;
if(next_dis < dp[next_dis]){
cout << cur_idx << endl; //<< " " << next_idx << " " << next_dis << " " << dp[next_idx] << endl;
dp_water[next_idx] = max(dp_water[next_idx],dp_water[cur_idx] + waters[next_idx]);
dp[next_idx] = next_dis;
if(!vis[next_idx]){
vis[next_idx] = true;
pq.push({next_idx, next_dis});
}
}
}
}
if(dp[target]!=INF){
cout << dp[target] << " " << dp_water[target] << endl;
return;
}
// if(vis[target]){
// cout << dp[target] << " " << dp_water[target] << endl;
// return;
// }
cout << -1 << endl;
return;
}
int main(void){
cin >> town;
for(int i = 1;i<=town;i++){
cin >> waters[i];
}
cin >> road;
while(road--){
cin >> start >> arrive >> dis;
graph[start].push_back({arrive,dis});
graph[arrive].push_back({start,dis});
}
cin >> start >> target;
dijstra(start,target);
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