답안 #1095702

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1095702	2024-10-03T02:43:02 Z	vjudge1	Construction Project 2 (JOI24_ho_t2)	C++17	100 / 100	161 ms	24756 KB

Main

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
const int maxN=2e5+5;
const ll inf=2e18;
int n,m,s,t,l;
ll k;
struct duongdi
{
    int u;
    ll w;
    bool operator < (const duongdi &o)const
    {
        return w>o.w;
    }
};
ll d[2][maxN+1];
vector<duongdi> adj[maxN+1];
priority_queue<duongdi> pq;
void dijkstra(int s,int type)
{
    for(int i=1;i<=n;i++)
    {
        d[type][i]=inf;
    }
    d[type][s]=0;
    pq.push({s,0});
    while(!pq.empty())
    {
        duongdi tmp=pq.top();
        pq.pop();
        int u=tmp.u;
        ll w=tmp.w;
        if(d[type][u]<w)
        {
            continue;
        }
        for(auto [v,nw]:adj[u])
        {
            if(d[type][v]>d[type][u]+nw)
            {
                d[type][v]=d[type][u]+nw;
                pq.push({v,d[type][v]});
            }
        }
    }
}
int main()
{
    //freopen("","r",stdin);
    //freopen("","w",stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m>>s>>t>>l>>k;
    for(int i=1;i<=m;i++)
    {
        int u,v,w;
        cin>>u>>v>>w;
        adj[u].push_back({v,w});
        adj[v].push_back({u,w});
    }
    dijkstra(s,0);
    dijkstra(t,1);
    if(d[0][t]<=k)
    {
        cout<<1LL*n*(n-1)/2;
        return 0;
    }
    sort(d[0]+1,d[0]+n+1);
    sort(d[1]+1,d[1]+n+1);
    ll ans=0;
    for(int i=1,j=n;i<=n;i++)
    {
        while(j>0&&d[0][i]+d[1][j]+l>k)
        {
            j--;
        }
        ans+=j;
    }
    cout<<ans;
}

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4956 KB	Output is correct
2	Correct	2 ms	4956 KB	Output is correct
3	Correct	2 ms	4956 KB	Output is correct
4	Correct	4 ms	4956 KB	Output is correct
5	Correct	3 ms	5212 KB	Output is correct
6	Correct	3 ms	5212 KB	Output is correct
7	Correct	57 ms	17212 KB	Output is correct
8	Correct	64 ms	17092 KB	Output is correct
9	Correct	61 ms	18356 KB	Output is correct
10	Correct	2 ms	4956 KB	Output is correct
11	Correct	2 ms	4956 KB	Output is correct
12	Correct	3 ms	5212 KB	Output is correct
13	Correct	3 ms	5212 KB	Output is correct
14	Correct	35 ms	13488 KB	Output is correct
15	Correct	122 ms	19260 KB	Output is correct
16	Correct	3 ms	4956 KB	Output is correct
17	Correct	3 ms	5268 KB	Output is correct
18	Correct	71 ms	17472 KB	Output is correct
19	Correct	2 ms	4956 KB	Output is correct
20	Correct	2 ms	4956 KB	Output is correct
21	Correct	2 ms	5208 KB	Output is correct
22	Correct	3 ms	5144 KB	Output is correct
23	Correct	34 ms	13404 KB	Output is correct
24	Correct	111 ms	19156 KB	Output is correct
25	Correct	3 ms	4956 KB	Output is correct
26	Correct	3 ms	5220 KB	Output is correct
27	Correct	67 ms	22284 KB	Output is correct
28	Correct	49 ms	16700 KB	Output is correct
29	Correct	58 ms	15440 KB	Output is correct

Subtask #2
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4956 KB	Output is correct
2	Correct	2 ms	4956 KB	Output is correct
3	Correct	2 ms	4956 KB	Output is correct
4	Correct	2 ms	4956 KB	Output is correct
5	Correct	2 ms	4956 KB	Output is correct
6	Correct	2 ms	4956 KB	Output is correct
7	Correct	2 ms	4952 KB	Output is correct
8	Correct	3 ms	4956 KB	Output is correct
9	Correct	2 ms	4952 KB	Output is correct
10	Correct	2 ms	4956 KB	Output is correct
11	Correct	2 ms	4956 KB	Output is correct
12	Correct	2 ms	4956 KB	Output is correct
13	Correct	2 ms	4956 KB	Output is correct
14	Correct	2 ms	4956 KB	Output is correct
15	Correct	2 ms	4956 KB	Output is correct
16	Correct	2 ms	4956 KB	Output is correct
17	Correct	2 ms	4956 KB	Output is correct
18	Correct	2 ms	4952 KB	Output is correct
19	Correct	2 ms	5012 KB	Output is correct
20	Correct	2 ms	4956 KB	Output is correct
21	Correct	3 ms	4956 KB	Output is correct
22	Correct	2 ms	4956 KB	Output is correct
23	Correct	2 ms	4976 KB	Output is correct
24	Correct	2 ms	4956 KB	Output is correct
25	Correct	2 ms	4956 KB	Output is correct
26	Correct	2 ms	4956 KB	Output is correct
27	Correct	2 ms	4956 KB	Output is correct
28	Correct	2 ms	4956 KB	Output is correct
29	Correct	3 ms	4956 KB	Output is correct
30	Correct	2 ms	4956 KB	Output is correct
31	Correct	2 ms	4956 KB	Output is correct
32	Correct	2 ms	4956 KB	Output is correct

Subtask #3
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4956 KB	Output is correct
2	Correct	2 ms	4956 KB	Output is correct
3	Correct	2 ms	4956 KB	Output is correct
4	Correct	2 ms	4956 KB	Output is correct
5	Correct	2 ms	4956 KB	Output is correct
6	Correct	2 ms	4956 KB	Output is correct
7	Correct	2 ms	4952 KB	Output is correct
8	Correct	3 ms	4956 KB	Output is correct
9	Correct	2 ms	4952 KB	Output is correct
10	Correct	2 ms	4956 KB	Output is correct
11	Correct	2 ms	4956 KB	Output is correct
12	Correct	2 ms	4956 KB	Output is correct
13	Correct	2 ms	4956 KB	Output is correct
14	Correct	2 ms	4956 KB	Output is correct
15	Correct	2 ms	4956 KB	Output is correct
16	Correct	2 ms	4956 KB	Output is correct
17	Correct	2 ms	4956 KB	Output is correct
18	Correct	2 ms	4952 KB	Output is correct
19	Correct	2 ms	5012 KB	Output is correct
20	Correct	2 ms	4956 KB	Output is correct
21	Correct	3 ms	4956 KB	Output is correct
22	Correct	2 ms	4956 KB	Output is correct
23	Correct	2 ms	4976 KB	Output is correct
24	Correct	2 ms	4956 KB	Output is correct
25	Correct	2 ms	4956 KB	Output is correct
26	Correct	2 ms	4956 KB	Output is correct
27	Correct	2 ms	4956 KB	Output is correct
28	Correct	2 ms	4956 KB	Output is correct
29	Correct	3 ms	4956 KB	Output is correct
30	Correct	2 ms	4956 KB	Output is correct
31	Correct	2 ms	4956 KB	Output is correct
32	Correct	2 ms	4956 KB	Output is correct
33	Correct	4 ms	5212 KB	Output is correct
34	Correct	3 ms	5220 KB	Output is correct
35	Correct	3 ms	5212 KB	Output is correct
36	Correct	3 ms	5212 KB	Output is correct
37	Correct	3 ms	5212 KB	Output is correct
38	Correct	3 ms	5212 KB	Output is correct
39	Correct	3 ms	5212 KB	Output is correct
40	Correct	3 ms	5464 KB	Output is correct
41	Correct	3 ms	5212 KB	Output is correct
42	Correct	2 ms	5212 KB	Output is correct
43	Correct	3 ms	5212 KB	Output is correct
44	Correct	4 ms	5208 KB	Output is correct
45	Correct	3 ms	5212 KB	Output is correct
46	Correct	3 ms	5400 KB	Output is correct
47	Correct	3 ms	5208 KB	Output is correct
48	Correct	3 ms	5224 KB	Output is correct
49	Correct	3 ms	5212 KB	Output is correct
50	Correct	2 ms	5212 KB	Output is correct
51	Correct	3 ms	5212 KB	Output is correct
52	Correct	3 ms	5208 KB	Output is correct
53	Correct	4 ms	5404 KB	Output is correct
54	Correct	4 ms	5464 KB	Output is correct
55	Correct	4 ms	5212 KB	Output is correct
56	Correct	3 ms	5212 KB	Output is correct
57	Correct	3 ms	5296 KB	Output is correct
58	Correct	3 ms	5212 KB	Output is correct

Subtask #4
47.0 / 47.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	4956 KB	Output is correct
2	Correct	2 ms	4956 KB	Output is correct
3	Correct	2 ms	4956 KB	Output is correct
4	Correct	4 ms	4956 KB	Output is correct
5	Correct	3 ms	5212 KB	Output is correct
6	Correct	3 ms	5212 KB	Output is correct
7	Correct	57 ms	17212 KB	Output is correct
8	Correct	64 ms	17092 KB	Output is correct
9	Correct	61 ms	18356 KB	Output is correct
10	Correct	2 ms	4956 KB	Output is correct
11	Correct	2 ms	4956 KB	Output is correct
12	Correct	3 ms	5212 KB	Output is correct
13	Correct	3 ms	5212 KB	Output is correct
14	Correct	35 ms	13488 KB	Output is correct
15	Correct	122 ms	19260 KB	Output is correct
16	Correct	3 ms	4956 KB	Output is correct
17	Correct	3 ms	5268 KB	Output is correct
18	Correct	71 ms	17472 KB	Output is correct
19	Correct	2 ms	4956 KB	Output is correct
20	Correct	2 ms	4956 KB	Output is correct
21	Correct	2 ms	5208 KB	Output is correct
22	Correct	3 ms	5144 KB	Output is correct
23	Correct	34 ms	13404 KB	Output is correct
24	Correct	111 ms	19156 KB	Output is correct
25	Correct	3 ms	4956 KB	Output is correct
26	Correct	3 ms	5220 KB	Output is correct
27	Correct	67 ms	22284 KB	Output is correct
28	Correct	49 ms	16700 KB	Output is correct
29	Correct	58 ms	15440 KB	Output is correct
30	Correct	2 ms	4956 KB	Output is correct
31	Correct	2 ms	4956 KB	Output is correct
32	Correct	2 ms	4956 KB	Output is correct
33	Correct	2 ms	4956 KB	Output is correct
34	Correct	2 ms	4956 KB	Output is correct
35	Correct	2 ms	4956 KB	Output is correct
36	Correct	2 ms	4952 KB	Output is correct
37	Correct	3 ms	4956 KB	Output is correct
38	Correct	2 ms	4952 KB	Output is correct
39	Correct	2 ms	4956 KB	Output is correct
40	Correct	2 ms	4956 KB	Output is correct
41	Correct	2 ms	4956 KB	Output is correct
42	Correct	2 ms	4956 KB	Output is correct
43	Correct	2 ms	4956 KB	Output is correct
44	Correct	2 ms	4956 KB	Output is correct
45	Correct	2 ms	4956 KB	Output is correct
46	Correct	2 ms	4956 KB	Output is correct
47	Correct	2 ms	4952 KB	Output is correct
48	Correct	2 ms	5012 KB	Output is correct
49	Correct	2 ms	4956 KB	Output is correct
50	Correct	3 ms	4956 KB	Output is correct
51	Correct	2 ms	4956 KB	Output is correct
52	Correct	2 ms	4976 KB	Output is correct
53	Correct	2 ms	4956 KB	Output is correct
54	Correct	2 ms	4956 KB	Output is correct
55	Correct	2 ms	4956 KB	Output is correct
56	Correct	2 ms	4956 KB	Output is correct
57	Correct	2 ms	4956 KB	Output is correct
58	Correct	3 ms	4956 KB	Output is correct
59	Correct	2 ms	4956 KB	Output is correct
60	Correct	2 ms	4956 KB	Output is correct
61	Correct	2 ms	4956 KB	Output is correct
62	Correct	4 ms	5212 KB	Output is correct
63	Correct	3 ms	5220 KB	Output is correct
64	Correct	3 ms	5212 KB	Output is correct
65	Correct	3 ms	5212 KB	Output is correct
66	Correct	3 ms	5212 KB	Output is correct
67	Correct	3 ms	5212 KB	Output is correct
68	Correct	3 ms	5212 KB	Output is correct
69	Correct	3 ms	5464 KB	Output is correct
70	Correct	3 ms	5212 KB	Output is correct
71	Correct	2 ms	5212 KB	Output is correct
72	Correct	3 ms	5212 KB	Output is correct
73	Correct	4 ms	5208 KB	Output is correct
74	Correct	3 ms	5212 KB	Output is correct
75	Correct	3 ms	5400 KB	Output is correct
76	Correct	3 ms	5208 KB	Output is correct
77	Correct	3 ms	5224 KB	Output is correct
78	Correct	3 ms	5212 KB	Output is correct
79	Correct	2 ms	5212 KB	Output is correct
80	Correct	3 ms	5212 KB	Output is correct
81	Correct	3 ms	5208 KB	Output is correct
82	Correct	4 ms	5404 KB	Output is correct
83	Correct	4 ms	5464 KB	Output is correct
84	Correct	4 ms	5212 KB	Output is correct
85	Correct	3 ms	5212 KB	Output is correct
86	Correct	3 ms	5296 KB	Output is correct
87	Correct	3 ms	5212 KB	Output is correct
88	Correct	85 ms	18900 KB	Output is correct
89	Correct	87 ms	18896 KB	Output is correct
90	Correct	81 ms	19024 KB	Output is correct
91	Correct	41 ms	15440 KB	Output is correct
92	Correct	42 ms	15460 KB	Output is correct
93	Correct	38 ms	13400 KB	Output is correct
94	Correct	39 ms	13404 KB	Output is correct
95	Correct	159 ms	21964 KB	Output is correct
96	Correct	120 ms	21708 KB	Output is correct
97	Correct	144 ms	21072 KB	Output is correct
98	Correct	139 ms	21328 KB	Output is correct
99	Correct	71 ms	20056 KB	Output is correct
100	Correct	64 ms	20028 KB	Output is correct
101	Correct	47 ms	17488 KB	Output is correct
102	Correct	48 ms	17492 KB	Output is correct
103	Correct	47 ms	14672 KB	Output is correct
104	Correct	43 ms	14676 KB	Output is correct
105	Correct	161 ms	21884 KB	Output is correct
106	Correct	152 ms	21776 KB	Output is correct
107	Correct	140 ms	24756 KB	Output is correct
108	Correct	134 ms	24668 KB	Output is correct
109	Correct	70 ms	18736 KB	Output is correct
110	Correct	69 ms	18740 KB	Output is correct
111	Correct	89 ms	17872 KB	Output is correct
112	Correct	88 ms	18016 KB	Output is correct

답안 #1095702

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