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Submission #1068248

# Submission time Handle Problem Language Result Execution time Memory
1068248 2024-08-21T08:50:11 Z Kipras Race (IOI11_race) C++17
100 / 100
 315 ms 80744 KB 
#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

constexpr ll maxN = 2e5+10;
constexpr ll inf = 1e15;

vector<pair<ll, ll>> adj[maxN];
ll res = inf, k;

map<ll, ll> dfs(ll v, ll p, ll konst, ll dep) {

    map<ll, ll> mp;

    mp[konst]=dep;

    for(auto i : adj[v]) {
        if(i.first==p)continue;
        map<ll, ll> tmp = dfs(i.first, v, i.second+konst, dep+1);
        if(tmp.size()>mp.size())swap(mp, tmp);
        for(auto x : tmp) {
            ll val = x.first;
            ll dep1 = x.second;
            ll needed = k+2*konst-val;
            if(mp.count(needed)) {
                ll dep2 = mp[needed];
                res=min(res, dep1+dep2-2*dep);
            }
        }
        for(auto x : tmp) {
            if(!mp.count(x.first))mp[x.first]=x.second;
            else mp[x.first]=min(x.second, mp[x.first]);
        }
    }

    return mp;

}

int best_path(int N, int K, int H[][2], int L[])
{
    k=K;
    for(int i = 0; i < N-1; i++) {
        ll aa = H[i][0], bb = H[i][1];

        adj[aa].push_back({bb, L[i]});
        adj[bb].push_back({aa, L[i]});
    }

    dfs(0, -1, 0, 0);

    if(res==inf) {
        return -1;
    }

    return res;
}

/*int nn, kk;
int H[maxN][2];
int L[maxN];
int solution;

int main()
{
    cin>>nn>>kk;
    for(int i = 0; i < nn-1; i++) {
        cin>>H[i][0]>>H[i][1];
    }
    for(int i = 0; i < nn-1; i++) {
        cin>>L[i];
    }
    cout<<best_path(nn,kk,H,L);

    return 0;
}
*/

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 4 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6576 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4980 KB Output is correct
12 Correct 2 ms 4952 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 3 ms 4952 KB Output is correct
16 Correct 3 ms 4956 KB Output is correct
17 Correct 2 ms 5080 KB Output is correct
18 Correct 2 ms 4988 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 4 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6576 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4980 KB Output is correct
12 Correct 2 ms 4952 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 3 ms 4952 KB Output is correct
16 Correct 3 ms 4956 KB Output is correct
17 Correct 2 ms 5080 KB Output is correct
18 Correct 2 ms 4988 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 3 ms 4956 KB Output is correct
21 Correct 3 ms 5212 KB Output is correct
22 Correct 3 ms 5212 KB Output is correct
23 Correct 3 ms 5212 KB Output is correct
24 Correct 3 ms 5212 KB Output is correct
25 Correct 3 ms 5136 KB Output is correct
26 Correct 3 ms 5212 KB Output is correct
27 Correct 4 ms 6748 KB Output is correct
28 Correct 3 ms 6744 KB Output is correct
29 Correct 3 ms 5120 KB Output is correct
30 Correct 3 ms 5212 KB Output is correct
31 Correct 4 ms 5212 KB Output is correct
32 Correct 3 ms 5212 KB Output is correct
33 Correct 3 ms 5212 KB Output is correct
34 Correct 3 ms 5212 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 5308 KB Output is correct
38 Correct 3 ms 5212 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 4 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6576 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4980 KB Output is correct
12 Correct 2 ms 4952 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 3 ms 4952 KB Output is correct
16 Correct 3 ms 4956 KB Output is correct
17 Correct 2 ms 5080 KB Output is correct
18 Correct 2 ms 4988 KB Output is correct
19 Correct 60 ms 11404 KB Output is correct
20 Correct 56 ms 12880 KB Output is correct
21 Correct 53 ms 13068 KB Output is correct
22 Correct 67 ms 13084 KB Output is correct
23 Correct 83 ms 13616 KB Output is correct
24 Correct 63 ms 12636 KB Output is correct
25 Correct 48 ms 28496 KB Output is correct
26 Correct 54 ms 42324 KB Output is correct
27 Correct 111 ms 22876 KB Output is correct
28 Correct 190 ms 80744 KB Output is correct
29 Correct 175 ms 78160 KB Output is correct
30 Correct 107 ms 23040 KB Output is correct
31 Correct 104 ms 22864 KB Output is correct
32 Correct 107 ms 23108 KB Output is correct
33 Correct 120 ms 22356 KB Output is correct
34 Correct 206 ms 35920 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 3 ms 4956 KB Output is correct
3 Correct 3 ms 4956 KB Output is correct
4 Correct 3 ms 4956 KB Output is correct
5 Correct 4 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6576 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4980 KB Output is correct
12 Correct 2 ms 4952 KB Output is correct
13 Correct 2 ms 4956 KB Output is correct
14 Correct 2 ms 4956 KB Output is correct
15 Correct 3 ms 4952 KB Output is correct
16 Correct 3 ms 4956 KB Output is correct
17 Correct 2 ms 5080 KB Output is correct
18 Correct 2 ms 4988 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 3 ms 4956 KB Output is correct
21 Correct 3 ms 5212 KB Output is correct
22 Correct 3 ms 5212 KB Output is correct
23 Correct 3 ms 5212 KB Output is correct
24 Correct 3 ms 5212 KB Output is correct
25 Correct 3 ms 5136 KB Output is correct
26 Correct 3 ms 5212 KB Output is correct
27 Correct 4 ms 6748 KB Output is correct
28 Correct 3 ms 6744 KB Output is correct
29 Correct 3 ms 5120 KB Output is correct
30 Correct 3 ms 5212 KB Output is correct
31 Correct 4 ms 5212 KB Output is correct
32 Correct 3 ms 5212 KB Output is correct
33 Correct 3 ms 5212 KB Output is correct
34 Correct 3 ms 5212 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 5308 KB Output is correct
38 Correct 3 ms 5212 KB Output is correct
39 Correct 60 ms 11404 KB Output is correct
40 Correct 56 ms 12880 KB Output is correct
41 Correct 53 ms 13068 KB Output is correct
42 Correct 67 ms 13084 KB Output is correct
43 Correct 83 ms 13616 KB Output is correct
44 Correct 63 ms 12636 KB Output is correct
45 Correct 48 ms 28496 KB Output is correct
46 Correct 54 ms 42324 KB Output is correct
47 Correct 111 ms 22876 KB Output is correct
48 Correct 190 ms 80744 KB Output is correct
49 Correct 175 ms 78160 KB Output is correct
50 Correct 107 ms 23040 KB Output is correct
51 Correct 104 ms 22864 KB Output is correct
52 Correct 107 ms 23108 KB Output is correct
53 Correct 120 ms 22356 KB Output is correct
54 Correct 206 ms 35920 KB Output is correct
55 Correct 12 ms 7768 KB Output is correct
56 Correct 6 ms 7500 KB Output is correct
57 Correct 35 ms 12884 KB Output is correct
58 Correct 31 ms 11968 KB Output is correct
59 Correct 69 ms 43604 KB Output is correct
60 Correct 173 ms 78928 KB Output is correct
61 Correct 132 ms 24656 KB Output is correct
62 Correct 101 ms 23084 KB Output is correct
63 Correct 119 ms 23124 KB Output is correct
64 Correct 315 ms 31316 KB Output is correct
65 Correct 278 ms 35668 KB Output is correct
66 Correct 189 ms 72640 KB Output is correct
67 Correct 76 ms 21888 KB Output is correct
68 Correct 203 ms 33600 KB Output is correct
69 Correct 228 ms 38132 KB Output is correct
70 Correct 180 ms 32336 KB Output is correct