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Submission #838803

# Submission time Handle Problem Language Result Execution time Memory
838803 2023-08-27T18:45:35 Z imarn Race (IOI11_race) C++14
100 / 100
 406 ms 97428 KB 
#include<bits/stdc++.h>
#define f first
#define s second
#define ll long long
#define pb push_back
#define pii pair<int,int>
#define pll pair<ll,ll>
#define all(x) x.begin(),x.end()
using namespace std;
const int N=2e5+5;
ll k;
int ans=1e7;
vector<pii>g[N];
unordered_map<ll,int>d[N];
void dfs(int u=0,int p=0,int lca=0,ll cur=0){
    d[u][cur]=lca;
    for(auto v:g[u]){
        if(v.f==p)continue;
        dfs(v.f,u,lca+1,cur+v.s);
        if(d[u].size()<d[v.f].size())swap(d[u],d[v.f]);
        for(auto it : d[v.f]){
            if(d[u].find(k-it.f+2*cur)!=d[u].end()){
                ans=min(ans,it.s+d[u][k-it.f+2*cur]-2*lca);
            }
        }
        for(auto it : d[v.f]){
            if(d[u].find(it.f)==d[u].end())d[u][it.f]=it.s;
            else d[u][it.f]=min(d[u][it.f],it.s);
        }
    }
}
int best_path(int N, int K, int H[][2], int L[])
{
    k=K;
    for(int i=0;i<N-1;i++){
        g[H[i][0]].pb({H[i][1],L[i]});
        g[H[i][1]].pb({H[i][0],L[i]});
    }dfs();
    return (ans==1e7?-1:ans);
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15984 KB Output is correct
4 Correct 7 ms 15956 KB Output is correct
5 Correct 8 ms 15956 KB Output is correct
6 Correct 8 ms 15956 KB Output is correct
7 Correct 8 ms 15956 KB Output is correct
8 Correct 7 ms 15956 KB Output is correct
9 Correct 8 ms 15876 KB Output is correct
10 Correct 8 ms 15956 KB Output is correct
11 Correct 9 ms 15976 KB Output is correct
12 Correct 7 ms 15956 KB Output is correct
13 Correct 8 ms 15956 KB Output is correct
14 Correct 7 ms 15956 KB Output is correct
15 Correct 7 ms 15908 KB Output is correct
16 Correct 7 ms 15956 KB Output is correct
17 Correct 8 ms 15956 KB Output is correct
18 Correct 8 ms 15956 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15984 KB Output is correct
4 Correct 7 ms 15956 KB Output is correct
5 Correct 8 ms 15956 KB Output is correct
6 Correct 8 ms 15956 KB Output is correct
7 Correct 8 ms 15956 KB Output is correct
8 Correct 7 ms 15956 KB Output is correct
9 Correct 8 ms 15876 KB Output is correct
10 Correct 8 ms 15956 KB Output is correct
11 Correct 9 ms 15976 KB Output is correct
12 Correct 7 ms 15956 KB Output is correct
13 Correct 8 ms 15956 KB Output is correct
14 Correct 7 ms 15956 KB Output is correct
15 Correct 7 ms 15908 KB Output is correct
16 Correct 7 ms 15956 KB Output is correct
17 Correct 8 ms 15956 KB Output is correct
18 Correct 8 ms 15956 KB Output is correct
19 Correct 7 ms 15956 KB Output is correct
20 Correct 8 ms 15956 KB Output is correct
21 Correct 8 ms 16212 KB Output is correct
22 Correct 9 ms 16212 KB Output is correct
23 Correct 9 ms 16252 KB Output is correct
24 Correct 9 ms 16212 KB Output is correct
25 Correct 10 ms 16240 KB Output is correct
26 Correct 11 ms 16212 KB Output is correct
27 Correct 8 ms 16084 KB Output is correct
28 Correct 10 ms 16212 KB Output is correct
29 Correct 8 ms 16212 KB Output is correct
30 Correct 9 ms 16212 KB Output is correct
31 Correct 9 ms 16212 KB Output is correct
32 Correct 8 ms 16212 KB Output is correct
33 Correct 9 ms 16212 KB Output is correct
34 Correct 9 ms 16212 KB Output is correct
35 Correct 8 ms 16212 KB Output is correct
36 Correct 8 ms 16212 KB Output is correct
37 Correct 8 ms 16212 KB Output is correct
38 Correct 9 ms 16212 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15984 KB Output is correct
4 Correct 7 ms 15956 KB Output is correct
5 Correct 8 ms 15956 KB Output is correct
6 Correct 8 ms 15956 KB Output is correct
7 Correct 8 ms 15956 KB Output is correct
8 Correct 7 ms 15956 KB Output is correct
9 Correct 8 ms 15876 KB Output is correct
10 Correct 8 ms 15956 KB Output is correct
11 Correct 9 ms 15976 KB Output is correct
12 Correct 7 ms 15956 KB Output is correct
13 Correct 8 ms 15956 KB Output is correct
14 Correct 7 ms 15956 KB Output is correct
15 Correct 7 ms 15908 KB Output is correct
16 Correct 7 ms 15956 KB Output is correct
17 Correct 8 ms 15956 KB Output is correct
18 Correct 8 ms 15956 KB Output is correct
19 Correct 105 ms 40304 KB Output is correct
20 Correct 111 ms 40320 KB Output is correct
21 Correct 105 ms 40152 KB Output is correct
22 Correct 105 ms 39788 KB Output is correct
23 Correct 122 ms 48312 KB Output is correct
24 Correct 101 ms 42032 KB Output is correct
25 Correct 95 ms 43012 KB Output is correct
26 Correct 60 ms 49996 KB Output is correct
27 Correct 159 ms 58412 KB Output is correct
28 Correct 234 ms 96276 KB Output is correct
29 Correct 225 ms 94896 KB Output is correct
30 Correct 164 ms 61340 KB Output is correct
31 Correct 165 ms 61296 KB Output is correct
32 Correct 248 ms 61368 KB Output is correct
33 Correct 188 ms 64552 KB Output is correct
34 Correct 318 ms 87412 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15956 KB Output is correct
2 Correct 7 ms 15956 KB Output is correct
3 Correct 8 ms 15984 KB Output is correct
4 Correct 7 ms 15956 KB Output is correct
5 Correct 8 ms 15956 KB Output is correct
6 Correct 8 ms 15956 KB Output is correct
7 Correct 8 ms 15956 KB Output is correct
8 Correct 7 ms 15956 KB Output is correct
9 Correct 8 ms 15876 KB Output is correct
10 Correct 8 ms 15956 KB Output is correct
11 Correct 9 ms 15976 KB Output is correct
12 Correct 7 ms 15956 KB Output is correct
13 Correct 8 ms 15956 KB Output is correct
14 Correct 7 ms 15956 KB Output is correct
15 Correct 7 ms 15908 KB Output is correct
16 Correct 7 ms 15956 KB Output is correct
17 Correct 8 ms 15956 KB Output is correct
18 Correct 8 ms 15956 KB Output is correct
19 Correct 7 ms 15956 KB Output is correct
20 Correct 8 ms 15956 KB Output is correct
21 Correct 8 ms 16212 KB Output is correct
22 Correct 9 ms 16212 KB Output is correct
23 Correct 9 ms 16252 KB Output is correct
24 Correct 9 ms 16212 KB Output is correct
25 Correct 10 ms 16240 KB Output is correct
26 Correct 11 ms 16212 KB Output is correct
27 Correct 8 ms 16084 KB Output is correct
28 Correct 10 ms 16212 KB Output is correct
29 Correct 8 ms 16212 KB Output is correct
30 Correct 9 ms 16212 KB Output is correct
31 Correct 9 ms 16212 KB Output is correct
32 Correct 8 ms 16212 KB Output is correct
33 Correct 9 ms 16212 KB Output is correct
34 Correct 9 ms 16212 KB Output is correct
35 Correct 8 ms 16212 KB Output is correct
36 Correct 8 ms 16212 KB Output is correct
37 Correct 8 ms 16212 KB Output is correct
38 Correct 9 ms 16212 KB Output is correct
39 Correct 105 ms 40304 KB Output is correct
40 Correct 111 ms 40320 KB Output is correct
41 Correct 105 ms 40152 KB Output is correct
42 Correct 105 ms 39788 KB Output is correct
43 Correct 122 ms 48312 KB Output is correct
44 Correct 101 ms 42032 KB Output is correct
45 Correct 95 ms 43012 KB Output is correct
46 Correct 60 ms 49996 KB Output is correct
47 Correct 159 ms 58412 KB Output is correct
48 Correct 234 ms 96276 KB Output is correct
49 Correct 225 ms 94896 KB Output is correct
50 Correct 164 ms 61340 KB Output is correct
51 Correct 165 ms 61296 KB Output is correct
52 Correct 248 ms 61368 KB Output is correct
53 Correct 188 ms 64552 KB Output is correct
54 Correct 318 ms 87412 KB Output is correct
55 Correct 17 ms 19164 KB Output is correct
56 Correct 18 ms 18260 KB Output is correct
57 Correct 75 ms 39832 KB Output is correct
58 Correct 44 ms 36180 KB Output is correct
59 Correct 64 ms 55972 KB Output is correct
60 Correct 230 ms 95240 KB Output is correct
61 Correct 186 ms 63804 KB Output is correct
62 Correct 177 ms 61368 KB Output is correct
63 Correct 246 ms 61320 KB Output is correct
64 Correct 386 ms 97428 KB Output is correct
65 Correct 406 ms 96612 KB Output is correct
66 Correct 266 ms 91308 KB Output is correct
67 Correct 184 ms 57832 KB Output is correct
68 Correct 339 ms 72380 KB Output is correct
69 Correct 355 ms 75832 KB Output is correct
70 Correct 319 ms 70104 KB Output is correct