oj.uz

Submission #892451

# Submission time Handle Problem Language Result Execution time Memory
892451 2023-12-25T11:01:01 Z oblantis Commuter Pass (JOI18_commuter_pass) C++17
100 / 100
 183 ms 18812 KB 
#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>
#define all(v) v.begin(), v.end()
#define pb push_back
#define ss second
#define ff first
#define vt vector
using namespace std;
//using namespace __gnu_pbds;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<double, int> pdi;
const ll inf = 1e14 + 10000;
const int mod = 1e9+7;
const int maxn = 1e5 + 12;
vt<pii> g[maxn];
void ope(vll &a, int st){
	a[st] = 0;
	priority_queue<pair<ll, int>, vt<pair<ll, int>>, greater<pair<ll, int>>> pq;
	pq.push({0, st});
	while(!pq.empty()){
		pair<ll, int> nw = pq.top();
		pq.pop();
		if(a[nw.ss] != nw.ff)continue;
		for(auto i : g[nw.ss]){
			if(nw.ff + i.ss < a[i.ff]) {
				a[i.ff] = nw.ff + i.ss;
				pq.push({a[i.ff], i.ff});
			}
		}
	}
}
void solve() {
	int n, m, s, t, u, v;
	cin >> n >> m >> s >> t >> u >> v;
	for(int i = 0; i < m; i++) {
		int a, b, c;
		cin >> a >> b >> c;
		a--, b--;
		g[a].pb({b, c});
		g[b].pb({a, c});
	}
	s--, t--, u--, v--;
	vll a(n, inf), c(n, inf), d(n, inf);
	ope(a, s), ope(c, u), ope(d, v);
	ll ans = c[v];
	vt<bool> was(n);
	vll D(n, inf), C(n, inf);
	priority_queue<pair<ll, int>> pq;
	pq.push({a[t], t});
	was[t] = 1;
	while(!pq.empty()){
		pair<ll, int> nw = pq.top();
		C[nw.ss] = min(C[nw.ss], c[nw.ss]), D[nw.ss] = min(D[nw.ss], d[nw.ss]);
		ans = min(ans, min(C[nw.ss] + d[nw.ss], D[nw.ss] + c[nw.ss]));
		pq.pop();
		for(auto i : g[nw.ss]){
			if(a[i.ff] + i.ss == nw.ff){
				C[i.ff] = min(C[i.ff], C[nw.ss]);
				D[i.ff] = min(D[i.ff], D[nw.ss]);
				if(!was[i.ff]){
					was[i.ff] = 1;
					pq.push({a[i.ff], i.ff});
				}
			}
		}
	}
	cout << ans;
}
int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int times = 1;
	//cin >> times;
	for(int i = 1; i <= times; i++) {
		solve();
	}
	return 0;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 18348 KB Output is correct
2 Correct 138 ms 16812 KB Output is correct
3 Correct 163 ms 17088 KB Output is correct
4 Correct 128 ms 18148 KB Output is correct
5 Correct 145 ms 16620 KB Output is correct
6 Correct 144 ms 18384 KB Output is correct
7 Correct 153 ms 16664 KB Output is correct
8 Correct 183 ms 16736 KB Output is correct
9 Correct 130 ms 17464 KB Output is correct
10 Correct 111 ms 17516 KB Output is correct
11 Correct 51 ms 11860 KB Output is correct
12 Correct 158 ms 17416 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 17052 KB Output is correct
2 Correct 157 ms 17032 KB Output is correct
3 Correct 142 ms 16760 KB Output is correct
4 Correct 154 ms 16608 KB Output is correct
5 Correct 175 ms 16784 KB Output is correct
6 Correct 136 ms 16760 KB Output is correct
7 Correct 148 ms 16556 KB Output is correct
8 Correct 153 ms 16768 KB Output is correct
9 Correct 169 ms 16924 KB Output is correct
10 Correct 163 ms 16620 KB Output is correct
11 Correct 54 ms 11836 KB Output is correct
12 Correct 148 ms 16756 KB Output is correct

Subtask #3
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 3884 KB Output is correct
2 Correct 1 ms 2648 KB Output is correct
3 Correct 1 ms 2652 KB Output is correct
4 Correct 10 ms 4700 KB Output is correct
5 Correct 5 ms 3672 KB Output is correct
6 Correct 1 ms 2652 KB Output is correct
7 Correct 2 ms 2884 KB Output is correct
8 Correct 2 ms 2908 KB Output is correct
9 Correct 1 ms 2652 KB Output is correct
10 Correct 6 ms 3644 KB Output is correct
11 Correct 1 ms 2652 KB Output is correct
12 Correct 1 ms 2652 KB Output is correct
13 Correct 1 ms 2848 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2864 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 128 ms 18348 KB Output is correct
2 Correct 138 ms 16812 KB Output is correct
3 Correct 163 ms 17088 KB Output is correct
4 Correct 128 ms 18148 KB Output is correct
5 Correct 145 ms 16620 KB Output is correct
6 Correct 144 ms 18384 KB Output is correct
7 Correct 153 ms 16664 KB Output is correct
8 Correct 183 ms 16736 KB Output is correct
9 Correct 130 ms 17464 KB Output is correct
10 Correct 111 ms 17516 KB Output is correct
11 Correct 51 ms 11860 KB Output is correct
12 Correct 158 ms 17416 KB Output is correct
13 Correct 144 ms 17052 KB Output is correct
14 Correct 157 ms 17032 KB Output is correct
15 Correct 142 ms 16760 KB Output is correct
16 Correct 154 ms 16608 KB Output is correct
17 Correct 175 ms 16784 KB Output is correct
18 Correct 136 ms 16760 KB Output is correct
19 Correct 148 ms 16556 KB Output is correct
20 Correct 153 ms 16768 KB Output is correct
21 Correct 169 ms 16924 KB Output is correct
22 Correct 163 ms 16620 KB Output is correct
23 Correct 54 ms 11836 KB Output is correct
24 Correct 148 ms 16756 KB Output is correct
25 Correct 6 ms 3884 KB Output is correct
26 Correct 1 ms 2648 KB Output is correct
27 Correct 1 ms 2652 KB Output is correct
28 Correct 10 ms 4700 KB Output is correct
29 Correct 5 ms 3672 KB Output is correct
30 Correct 1 ms 2652 KB Output is correct
31 Correct 2 ms 2884 KB Output is correct
32 Correct 2 ms 2908 KB Output is correct
33 Correct 1 ms 2652 KB Output is correct
34 Correct 6 ms 3644 KB Output is correct
35 Correct 1 ms 2652 KB Output is correct
36 Correct 1 ms 2652 KB Output is correct
37 Correct 1 ms 2848 KB Output is correct
38 Correct 1 ms 2652 KB Output is correct
39 Correct 1 ms 2864 KB Output is correct
40 Correct 174 ms 18812 KB Output is correct
41 Correct 136 ms 17496 KB Output is correct
42 Correct 149 ms 17544 KB Output is correct
43 Correct 65 ms 12112 KB Output is correct
44 Correct 51 ms 11936 KB Output is correct
45 Correct 134 ms 17952 KB Output is correct
46 Correct 144 ms 17488 KB Output is correct
47 Correct 151 ms 18272 KB Output is correct
48 Correct 59 ms 11304 KB Output is correct
49 Correct 106 ms 18400 KB Output is correct
50 Correct 143 ms 17168 KB Output is correct
51 Correct 178 ms 18252 KB Output is correct