Submission #1163387

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1163387	2025-03-08 04:53:07	boclobanchat	Commuter Pass (JOI18_commuter_pass)	C++20	100 / 100	276 ms	23664 KiB

commuter_pass

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<bits/stdc++.h>
using namespace std;
#define ii pair<long long,long long>
#define fi first
#define se second
const int MAXN=2e5+5;
const long long INF=1e18;
vector<ii> ds[MAXN];
priority_queue< ii,vector<ii>,greater<ii> > pq;
long long dp[MAXN],ans[MAXN][3],pdp[MAXN];
int main()
{
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  int n,m,s,t,u,v;
  cin>>n>>m>>s>>t>>u>>v;
  for(int i=1;i<=m;i++)
  {
    int l,r,v;
    cin>>l>>r>>v;
    ds[l].push_back({r,v}),ds[r].push_back({l,v});
  }
  for(int i=1;i<=n;i++) dp[i]=INF*(i!=s),pdp[i]=INF*(i!=t),ans[i][0]=ans[i][1]=ans[i][2]=INF*(i!=u);
  pq.push({0,s});
  while(!pq.empty())
  {
    long long a=pq.top().fi,b=pq.top().se;
    pq.pop();
    if(dp[b]<a) continue;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 16 / 16
• Subtask 2: 15 / 15
• Subtask 3: 24 / 24
• Subtask 4: 45 / 45