oj.uz

Submission #1095701

# Submission time Handle Problem Language Result Execution time Memory
1095701 2024-10-03T02:42:48 Z DucNguyen2007 Construction Project 2 (JOI24_ho_t2) C++14
100 / 100
 155 ms 26712 KB 
#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;
}

Compilation message

Main.cpp: In function 'void dijkstra(int, int)':
Main.cpp:42:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   42 |         for(auto [v,nw]:adj[u])
      |                  ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4952 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 5196 KB Output is correct
6 Correct 3 ms 5468 KB Output is correct
7 Correct 51 ms 19572 KB Output is correct
8 Correct 59 ms 19504 KB Output is correct
9 Correct 62 ms 20664 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 2 ms 4952 KB Output is correct
12 Correct 3 ms 5212 KB Output is correct
13 Correct 3 ms 5432 KB Output is correct
14 Correct 40 ms 14928 KB Output is correct
15 Correct 107 ms 22224 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 3 ms 5320 KB Output is correct
18 Correct 72 ms 20564 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 5212 KB Output is correct
22 Correct 3 ms 5212 KB Output is correct
23 Correct 37 ms 14980 KB Output is correct
24 Correct 128 ms 22220 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 4 ms 5468 KB Output is correct
27 Correct 69 ms 25296 KB Output is correct
28 Correct 52 ms 19252 KB Output is correct
29 Correct 55 ms 18312 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4952 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 4992 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 5176 KB Output is correct
11 Correct 3 ms 4956 KB Output is correct
12 Correct 2 ms 5080 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 5112 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 5160 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 4956 KB Output is correct
22 Correct 2 ms 4956 KB Output is correct
23 Correct 2 ms 4956 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 2 ms 5160 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 2 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

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4952 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 4992 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 5176 KB Output is correct
11 Correct 3 ms 4956 KB Output is correct
12 Correct 2 ms 5080 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 5112 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 5160 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 4956 KB Output is correct
22 Correct 2 ms 4956 KB Output is correct
23 Correct 2 ms 4956 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 2 ms 5160 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 2 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 3 ms 5212 KB Output is correct
34 Correct 3 ms 5468 KB Output is correct
35 Correct 2 ms 5212 KB Output is correct
36 Correct 4 ms 5208 KB Output is correct
37 Correct 3 ms 5172 KB Output is correct
38 Correct 2 ms 5212 KB Output is correct
39 Correct 3 ms 5212 KB Output is correct
40 Correct 3 ms 5468 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 3 ms 5464 KB Output is correct
45 Correct 3 ms 5212 KB Output is correct
46 Correct 3 ms 5212 KB Output is correct
47 Correct 3 ms 5208 KB Output is correct
48 Correct 3 ms 5212 KB Output is correct
49 Correct 3 ms 5212 KB Output is correct
50 Correct 2 ms 5212 KB Output is correct
51 Correct 4 ms 5212 KB Output is correct
52 Correct 3 ms 5212 KB Output is correct
53 Correct 4 ms 5468 KB Output is correct
54 Correct 3 ms 5464 KB Output is correct
55 Correct 3 ms 5212 KB Output is correct
56 Correct 3 ms 5212 KB Output is correct
57 Correct 3 ms 5176 KB Output is correct
58 Correct 3 ms 5212 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 4952 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 5196 KB Output is correct
6 Correct 3 ms 5468 KB Output is correct
7 Correct 51 ms 19572 KB Output is correct
8 Correct 59 ms 19504 KB Output is correct
9 Correct 62 ms 20664 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 2 ms 4952 KB Output is correct
12 Correct 3 ms 5212 KB Output is correct
13 Correct 3 ms 5432 KB Output is correct
14 Correct 40 ms 14928 KB Output is correct
15 Correct 107 ms 22224 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 3 ms 5320 KB Output is correct
18 Correct 72 ms 20564 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 5212 KB Output is correct
22 Correct 3 ms 5212 KB Output is correct
23 Correct 37 ms 14980 KB Output is correct
24 Correct 128 ms 22220 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 4 ms 5468 KB Output is correct
27 Correct 69 ms 25296 KB Output is correct
28 Correct 52 ms 19252 KB Output is correct
29 Correct 55 ms 18312 KB Output is correct
30 Correct 2 ms 4952 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 4992 KB Output is correct
35 Correct 2 ms 4956 KB Output is correct
36 Correct 2 ms 4956 KB Output is correct
37 Correct 2 ms 4956 KB Output is correct
38 Correct 2 ms 4956 KB Output is correct
39 Correct 2 ms 5176 KB Output is correct
40 Correct 3 ms 4956 KB Output is correct
41 Correct 2 ms 5080 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 5112 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 5160 KB Output is correct
48 Correct 2 ms 4956 KB Output is correct
49 Correct 2 ms 4956 KB Output is correct
50 Correct 2 ms 4956 KB Output is correct
51 Correct 2 ms 4956 KB Output is correct
52 Correct 2 ms 4956 KB Output is correct
53 Correct 2 ms 4956 KB Output is correct
54 Correct 2 ms 5160 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 2 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 3 ms 5212 KB Output is correct
63 Correct 3 ms 5468 KB Output is correct
64 Correct 2 ms 5212 KB Output is correct
65 Correct 4 ms 5208 KB Output is correct
66 Correct 3 ms 5172 KB Output is correct
67 Correct 2 ms 5212 KB Output is correct
68 Correct 3 ms 5212 KB Output is correct
69 Correct 3 ms 5468 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 3 ms 5464 KB Output is correct
74 Correct 3 ms 5212 KB Output is correct
75 Correct 3 ms 5212 KB Output is correct
76 Correct 3 ms 5208 KB Output is correct
77 Correct 3 ms 5212 KB Output is correct
78 Correct 3 ms 5212 KB Output is correct
79 Correct 2 ms 5212 KB Output is correct
80 Correct 4 ms 5212 KB Output is correct
81 Correct 3 ms 5212 KB Output is correct
82 Correct 4 ms 5468 KB Output is correct
83 Correct 3 ms 5464 KB Output is correct
84 Correct 3 ms 5212 KB Output is correct
85 Correct 3 ms 5212 KB Output is correct
86 Correct 3 ms 5176 KB Output is correct
87 Correct 3 ms 5212 KB Output is correct
88 Correct 88 ms 23620 KB Output is correct
89 Correct 86 ms 23508 KB Output is correct
90 Correct 88 ms 23728 KB Output is correct
91 Correct 45 ms 18768 KB Output is correct
92 Correct 44 ms 18768 KB Output is correct
93 Correct 44 ms 15700 KB Output is correct
94 Correct 43 ms 15696 KB Output is correct
95 Correct 155 ms 23792 KB Output is correct
96 Correct 124 ms 23648 KB Output is correct
97 Correct 129 ms 23028 KB Output is correct
98 Correct 127 ms 23124 KB Output is correct
99 Correct 63 ms 22076 KB Output is correct
100 Correct 74 ms 22344 KB Output is correct
101 Correct 40 ms 18780 KB Output is correct
102 Correct 41 ms 18956 KB Output is correct
103 Correct 40 ms 15700 KB Output is correct
104 Correct 43 ms 15700 KB Output is correct
105 Correct 151 ms 23752 KB Output is correct
106 Correct 144 ms 23664 KB Output is correct
107 Correct 135 ms 26548 KB Output is correct
108 Correct 142 ms 26712 KB Output is correct
109 Correct 72 ms 20384 KB Output is correct
110 Correct 71 ms 20236 KB Output is correct
111 Correct 88 ms 19152 KB Output is correct
112 Correct 91 ms 19156 KB Output is correct