Submission #1057342

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1057342	2024-08-13T17:40:21 Z	beaconmc	Construction Project 2 (JOI24_ho_t2)	C++14	100 / 100	215 ms	38832 KB

Main

#include <bits/stdc++.h>
 
typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;

const ll maxn = 200005;
const ll INF = 10000000000000000;
vector<array<ll, 2>> edges[maxn];
ll dists[maxn];
ll distt[maxn];

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	FOR(i,0,maxn) dists[i] = INF, distt[i] = INF;

	ll n,m;
	cin >> n >> m;
	ll s, t, l, k;
	cin >> s >> t >> l >> k;
	FOR(i,0,m){
		ll a,b,c;
		cin >> a >> b >> c;

		edges[a].push_back({b,c});
		edges[b].push_back({a,c});
	}

	priority_queue<vector<ll>> pq;
	dists[s] = 0;
	pq.push({0, s});

	while (pq.size()){
		vector<ll> node = pq.top(); pq.pop();

		node[0] = -node[0];
		if (dists[node[1]] != node[0]) continue;

		for (auto&i : edges[node[1]]){
			if (dists[i[0]] > dists[node[1]] + i[1]){
				dists[i[0]] = dists[node[1]] + i[1];
				pq.push({-dists[i[0]] , i[0]});
			}
		}
	}
	distt[t] = 0;
	pq.push({0, t});

	while (pq.size()){
		vector<ll> node = pq.top(); pq.pop();

		node[0] = -node[0];
		if (distt[node[1]] != node[0]) continue;

		for (auto&i : edges[node[1]]){
			if (distt[i[0]] > distt[node[1]] + i[1]){
				distt[i[0]] = distt[node[1]] + i[1];
				pq.push({-distt[i[0]] , i[0]});
			}
		}
	}

	if (dists[t] <= k) cout << n * (n-1) / 2;
	else{
		ll ans = 0;
		vector<ll> S, T;
		FOR(i,1,n+1) S.push_back(dists[i]), T.push_back(distt[i]);
		sort(S.begin(), S.end());
		sort(T.begin(), T.end());


		FOR(i,0,n){
			ll req = k - (S[i]+l);
			ll sus = upper_bound(T.begin(), T.end(), req) - T.begin();
			ans += sus;
		}

		cout << ans << endl;

	}




}

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8284 KB	Output is correct
2	Correct	1 ms	8284 KB	Output is correct
3	Correct	1 ms	8284 KB	Output is correct
4	Correct	1 ms	8284 KB	Output is correct
5	Correct	2 ms	8540 KB	Output is correct
6	Correct	2 ms	8540 KB	Output is correct
7	Correct	63 ms	28508 KB	Output is correct
8	Correct	86 ms	27704 KB	Output is correct
9	Correct	80 ms	28720 KB	Output is correct
10	Correct	2 ms	8284 KB	Output is correct
11	Correct	1 ms	8284 KB	Output is correct
12	Correct	2 ms	8284 KB	Output is correct
13	Correct	3 ms	8496 KB	Output is correct
14	Correct	34 ms	18132 KB	Output is correct
15	Correct	169 ms	26172 KB	Output is correct
16	Correct	2 ms	8280 KB	Output is correct
17	Correct	2 ms	8540 KB	Output is correct
18	Correct	74 ms	23896 KB	Output is correct
19	Correct	2 ms	8284 KB	Output is correct
20	Correct	2 ms	8056 KB	Output is correct
21	Correct	2 ms	8284 KB	Output is correct
22	Correct	3 ms	8540 KB	Output is correct
23	Correct	33 ms	18236 KB	Output is correct
24	Correct	153 ms	26056 KB	Output is correct
25	Correct	2 ms	8284 KB	Output is correct
26	Correct	2 ms	8540 KB	Output is correct
27	Correct	96 ms	32588 KB	Output is correct
28	Correct	66 ms	25384 KB	Output is correct
29	Correct	56 ms	22468 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8028 KB	Output is correct
2	Correct	1 ms	8284 KB	Output is correct
3	Correct	1 ms	8284 KB	Output is correct
4	Correct	1 ms	8284 KB	Output is correct
5	Correct	2 ms	8284 KB	Output is correct
6	Correct	1 ms	8284 KB	Output is correct
7	Correct	2 ms	8284 KB	Output is correct
8	Correct	2 ms	8284 KB	Output is correct
9	Correct	1 ms	8284 KB	Output is correct
10	Correct	2 ms	8284 KB	Output is correct
11	Correct	2 ms	8280 KB	Output is correct
12	Correct	2 ms	8284 KB	Output is correct
13	Correct	2 ms	8280 KB	Output is correct
14	Correct	1 ms	8284 KB	Output is correct
15	Correct	2 ms	8284 KB	Output is correct
16	Correct	1 ms	8284 KB	Output is correct
17	Correct	1 ms	8284 KB	Output is correct
18	Correct	2 ms	8284 KB	Output is correct
19	Correct	2 ms	8284 KB	Output is correct
20	Correct	2 ms	8284 KB	Output is correct
21	Correct	1 ms	8284 KB	Output is correct
22	Correct	1 ms	8284 KB	Output is correct
23	Correct	2 ms	8284 KB	Output is correct
24	Correct	2 ms	8120 KB	Output is correct
25	Correct	2 ms	8284 KB	Output is correct
26	Correct	2 ms	8284 KB	Output is correct
27	Correct	1 ms	8284 KB	Output is correct
28	Correct	1 ms	8284 KB	Output is correct
29	Correct	1 ms	8280 KB	Output is correct
30	Correct	1 ms	8140 KB	Output is correct
31	Correct	2 ms	8284 KB	Output is correct
32	Correct	1 ms	8284 KB	Output is correct

Subtask #3
29.0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8028 KB	Output is correct
2	Correct	1 ms	8284 KB	Output is correct
3	Correct	1 ms	8284 KB	Output is correct
4	Correct	1 ms	8284 KB	Output is correct
5	Correct	2 ms	8284 KB	Output is correct
6	Correct	1 ms	8284 KB	Output is correct
7	Correct	2 ms	8284 KB	Output is correct
8	Correct	2 ms	8284 KB	Output is correct
9	Correct	1 ms	8284 KB	Output is correct
10	Correct	2 ms	8284 KB	Output is correct
11	Correct	2 ms	8280 KB	Output is correct
12	Correct	2 ms	8284 KB	Output is correct
13	Correct	2 ms	8280 KB	Output is correct
14	Correct	1 ms	8284 KB	Output is correct
15	Correct	2 ms	8284 KB	Output is correct
16	Correct	1 ms	8284 KB	Output is correct
17	Correct	1 ms	8284 KB	Output is correct
18	Correct	2 ms	8284 KB	Output is correct
19	Correct	2 ms	8284 KB	Output is correct
20	Correct	2 ms	8284 KB	Output is correct
21	Correct	1 ms	8284 KB	Output is correct
22	Correct	1 ms	8284 KB	Output is correct
23	Correct	2 ms	8284 KB	Output is correct
24	Correct	2 ms	8120 KB	Output is correct
25	Correct	2 ms	8284 KB	Output is correct
26	Correct	2 ms	8284 KB	Output is correct
27	Correct	1 ms	8284 KB	Output is correct
28	Correct	1 ms	8284 KB	Output is correct
29	Correct	1 ms	8280 KB	Output is correct
30	Correct	1 ms	8140 KB	Output is correct
31	Correct	2 ms	8284 KB	Output is correct
32	Correct	1 ms	8284 KB	Output is correct
33	Correct	3 ms	8540 KB	Output is correct
34	Correct	2 ms	8540 KB	Output is correct
35	Correct	2 ms	8296 KB	Output is correct
36	Correct	3 ms	8540 KB	Output is correct
37	Correct	2 ms	8540 KB	Output is correct
38	Correct	2 ms	8284 KB	Output is correct
39	Correct	3 ms	8540 KB	Output is correct
40	Correct	3 ms	8540 KB	Output is correct
41	Correct	2 ms	8540 KB	Output is correct
42	Correct	3 ms	8284 KB	Output is correct
43	Correct	3 ms	8540 KB	Output is correct
44	Correct	3 ms	8540 KB	Output is correct
45	Correct	4 ms	8540 KB	Output is correct
46	Correct	3 ms	8556 KB	Output is correct
47	Correct	2 ms	8540 KB	Output is correct
48	Correct	2 ms	8540 KB	Output is correct
49	Correct	3 ms	8540 KB	Output is correct
50	Correct	2 ms	8284 KB	Output is correct
51	Correct	3 ms	8540 KB	Output is correct
52	Correct	3 ms	8540 KB	Output is correct
53	Correct	3 ms	8540 KB	Output is correct
54	Correct	3 ms	8540 KB	Output is correct
55	Correct	3 ms	8540 KB	Output is correct
56	Correct	3 ms	8540 KB	Output is correct
57	Correct	3 ms	8540 KB	Output is correct
58	Correct	3 ms	8464 KB	Output is correct

Subtask #4
47.0 / 47.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	8284 KB	Output is correct
2	Correct	1 ms	8284 KB	Output is correct
3	Correct	1 ms	8284 KB	Output is correct
4	Correct	1 ms	8284 KB	Output is correct
5	Correct	2 ms	8540 KB	Output is correct
6	Correct	2 ms	8540 KB	Output is correct
7	Correct	63 ms	28508 KB	Output is correct
8	Correct	86 ms	27704 KB	Output is correct
9	Correct	80 ms	28720 KB	Output is correct
10	Correct	2 ms	8284 KB	Output is correct
11	Correct	1 ms	8284 KB	Output is correct
12	Correct	2 ms	8284 KB	Output is correct
13	Correct	3 ms	8496 KB	Output is correct
14	Correct	34 ms	18132 KB	Output is correct
15	Correct	169 ms	26172 KB	Output is correct
16	Correct	2 ms	8280 KB	Output is correct
17	Correct	2 ms	8540 KB	Output is correct
18	Correct	74 ms	23896 KB	Output is correct
19	Correct	2 ms	8284 KB	Output is correct
20	Correct	2 ms	8056 KB	Output is correct
21	Correct	2 ms	8284 KB	Output is correct
22	Correct	3 ms	8540 KB	Output is correct
23	Correct	33 ms	18236 KB	Output is correct
24	Correct	153 ms	26056 KB	Output is correct
25	Correct	2 ms	8284 KB	Output is correct
26	Correct	2 ms	8540 KB	Output is correct
27	Correct	96 ms	32588 KB	Output is correct
28	Correct	66 ms	25384 KB	Output is correct
29	Correct	56 ms	22468 KB	Output is correct
30	Correct	2 ms	8028 KB	Output is correct
31	Correct	1 ms	8284 KB	Output is correct
32	Correct	1 ms	8284 KB	Output is correct
33	Correct	1 ms	8284 KB	Output is correct
34	Correct	2 ms	8284 KB	Output is correct
35	Correct	1 ms	8284 KB	Output is correct
36	Correct	2 ms	8284 KB	Output is correct
37	Correct	2 ms	8284 KB	Output is correct
38	Correct	1 ms	8284 KB	Output is correct
39	Correct	2 ms	8284 KB	Output is correct
40	Correct	2 ms	8280 KB	Output is correct
41	Correct	2 ms	8284 KB	Output is correct
42	Correct	2 ms	8280 KB	Output is correct
43	Correct	1 ms	8284 KB	Output is correct
44	Correct	2 ms	8284 KB	Output is correct
45	Correct	1 ms	8284 KB	Output is correct
46	Correct	1 ms	8284 KB	Output is correct
47	Correct	2 ms	8284 KB	Output is correct
48	Correct	2 ms	8284 KB	Output is correct
49	Correct	2 ms	8284 KB	Output is correct
50	Correct	1 ms	8284 KB	Output is correct
51	Correct	1 ms	8284 KB	Output is correct
52	Correct	2 ms	8284 KB	Output is correct
53	Correct	2 ms	8120 KB	Output is correct
54	Correct	2 ms	8284 KB	Output is correct
55	Correct	2 ms	8284 KB	Output is correct
56	Correct	1 ms	8284 KB	Output is correct
57	Correct	1 ms	8284 KB	Output is correct
58	Correct	1 ms	8280 KB	Output is correct
59	Correct	1 ms	8140 KB	Output is correct
60	Correct	2 ms	8284 KB	Output is correct
61	Correct	1 ms	8284 KB	Output is correct
62	Correct	3 ms	8540 KB	Output is correct
63	Correct	2 ms	8540 KB	Output is correct
64	Correct	2 ms	8296 KB	Output is correct
65	Correct	3 ms	8540 KB	Output is correct
66	Correct	2 ms	8540 KB	Output is correct
67	Correct	2 ms	8284 KB	Output is correct
68	Correct	3 ms	8540 KB	Output is correct
69	Correct	3 ms	8540 KB	Output is correct
70	Correct	2 ms	8540 KB	Output is correct
71	Correct	3 ms	8284 KB	Output is correct
72	Correct	3 ms	8540 KB	Output is correct
73	Correct	3 ms	8540 KB	Output is correct
74	Correct	4 ms	8540 KB	Output is correct
75	Correct	3 ms	8556 KB	Output is correct
76	Correct	2 ms	8540 KB	Output is correct
77	Correct	2 ms	8540 KB	Output is correct
78	Correct	3 ms	8540 KB	Output is correct
79	Correct	2 ms	8284 KB	Output is correct
80	Correct	3 ms	8540 KB	Output is correct
81	Correct	3 ms	8540 KB	Output is correct
82	Correct	3 ms	8540 KB	Output is correct
83	Correct	3 ms	8540 KB	Output is correct
84	Correct	3 ms	8540 KB	Output is correct
85	Correct	3 ms	8540 KB	Output is correct
86	Correct	3 ms	8540 KB	Output is correct
87	Correct	3 ms	8464 KB	Output is correct
88	Correct	87 ms	23800 KB	Output is correct
89	Correct	96 ms	23868 KB	Output is correct
90	Correct	84 ms	26976 KB	Output is correct
91	Correct	35 ms	22108 KB	Output is correct
92	Correct	36 ms	22056 KB	Output is correct
93	Correct	37 ms	18976 KB	Output is correct
94	Correct	59 ms	19116 KB	Output is correct
95	Correct	182 ms	29120 KB	Output is correct
96	Correct	148 ms	25292 KB	Output is correct
97	Correct	135 ms	26304 KB	Output is correct
98	Correct	118 ms	26304 KB	Output is correct
99	Correct	64 ms	25288 KB	Output is correct
100	Correct	65 ms	25280 KB	Output is correct
101	Correct	32 ms	22100 KB	Output is correct
102	Correct	33 ms	22100 KB	Output is correct
103	Correct	35 ms	19064 KB	Output is correct
104	Correct	37 ms	19124 KB	Output is correct
105	Correct	172 ms	29116 KB	Output is correct
106	Correct	199 ms	29120 KB	Output is correct
107	Correct	203 ms	37552 KB	Output is correct
108	Correct	215 ms	38832 KB	Output is correct
109	Correct	84 ms	25908 KB	Output is correct
110	Correct	82 ms	25892 KB	Output is correct
111	Correct	110 ms	24836 KB	Output is correct
112	Correct	120 ms	24992 KB	Output is correct

Submission #1057342

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 16.0 / 16.0

Subtask #3 29.0 / 29.0

Subtask #4 47.0 / 47.0

Subtask #1
8.0 / 8.0

Subtask #2
16.0 / 16.0

Subtask #3
29.0 / 29.0

Subtask #4
47.0 / 47.0