oj.uz

Submission #1091811

# Submission time Handle Problem Language Result Execution time Memory
1091811 2024-09-22T08:16:22 Z Luca1234 Race (IOI11_race) C++14
100 / 100
 337 ms 82972 KB 
#include <bits/stdc++.h>
using namespace std;

const int nmax=2e5+3;
vector <pair <int, int> > v[nmax];
map <int, int> m[nmax];
int k, ans=nmax;

void dfs(int nod, int parent, int d, int h)
{
    m[nod][d]=h;
    for(auto [i, cost]:v[nod])
    {
        if(i!=parent)
        {
            dfs(i, nod, d+cost, h+1);
            if(m[i].size()>m[nod].size()) swap(m[i], m[nod]);
            for(auto [dist, he]:m[i])
            {
                int caut=k+2*d-dist;
                if(m[nod].count(caut))
                {
                    ans=min(ans, he+m[nod][caut]-2*h);
                }
            }
            for(auto [dist, he]:m[i])
            {
                if(m[nod].count(dist))
                {
                    m[nod][dist]=min(m[nod][dist], he);
                }
                else m[nod][dist]=he;
            }
        }
    }
}

long long best_path(int n, int k, int h[][2], int l[])
{
    ::k=k;
    for(int i=0; i<n-1; i++)
    {
        int a=h[i][0], b=h[i][1];
        v[a].push_back({b, l[i]});
        v[b].push_back({a, l[i]});
    }
    dfs(0, -1, 0, 1);
    if(ans==nmax) return -1;
    return ans;
}

Compilation message

race.cpp: In function 'void dfs(int, int, int, int)':
race.cpp:12:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   12 |     for(auto [i, cost]:v[nod])
      |              ^
race.cpp:18:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   18 |             for(auto [dist, he]:m[i])
      |                      ^
race.cpp:26:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   26 |             for(auto [dist, he]:m[i])
      |                      ^

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 6 ms 14428 KB Output is correct
3 Correct 7 ms 14580 KB Output is correct
4 Correct 6 ms 14428 KB Output is correct
5 Correct 7 ms 14416 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14404 KB Output is correct
8 Correct 6 ms 14428 KB Output is correct
9 Correct 6 ms 14428 KB Output is correct
10 Correct 6 ms 14488 KB Output is correct
11 Correct 6 ms 14512 KB Output is correct
12 Correct 7 ms 14428 KB Output is correct
13 Correct 7 ms 14620 KB Output is correct
14 Correct 6 ms 14428 KB Output is correct
15 Correct 6 ms 14568 KB Output is correct
16 Correct 6 ms 14540 KB Output is correct
17 Correct 6 ms 14428 KB Output is correct
18 Correct 6 ms 14428 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 6 ms 14428 KB Output is correct
3 Correct 7 ms 14580 KB Output is correct
4 Correct 6 ms 14428 KB Output is correct
5 Correct 7 ms 14416 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14404 KB Output is correct
8 Correct 6 ms 14428 KB Output is correct
9 Correct 6 ms 14428 KB Output is correct
10 Correct 6 ms 14488 KB Output is correct
11 Correct 6 ms 14512 KB Output is correct
12 Correct 7 ms 14428 KB Output is correct
13 Correct 7 ms 14620 KB Output is correct
14 Correct 6 ms 14428 KB Output is correct
15 Correct 6 ms 14568 KB Output is correct
16 Correct 6 ms 14540 KB Output is correct
17 Correct 6 ms 14428 KB Output is correct
18 Correct 6 ms 14428 KB Output is correct
19 Correct 7 ms 14428 KB Output is correct
20 Correct 6 ms 14428 KB Output is correct
21 Correct 7 ms 14680 KB Output is correct
22 Correct 8 ms 14684 KB Output is correct
23 Correct 8 ms 14668 KB Output is correct
24 Correct 6 ms 14684 KB Output is correct
25 Correct 7 ms 14684 KB Output is correct
26 Correct 7 ms 14684 KB Output is correct
27 Correct 9 ms 14544 KB Output is correct
28 Correct 7 ms 14684 KB Output is correct
29 Correct 7 ms 14668 KB Output is correct
30 Correct 7 ms 14684 KB Output is correct
31 Correct 8 ms 14684 KB Output is correct
32 Correct 7 ms 14736 KB Output is correct
33 Correct 7 ms 14680 KB Output is correct
34 Correct 7 ms 14736 KB Output is correct
35 Correct 6 ms 14684 KB Output is correct
36 Correct 6 ms 14684 KB Output is correct
37 Correct 6 ms 14684 KB Output is correct
38 Correct 7 ms 14684 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 6 ms 14428 KB Output is correct
3 Correct 7 ms 14580 KB Output is correct
4 Correct 6 ms 14428 KB Output is correct
5 Correct 7 ms 14416 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14404 KB Output is correct
8 Correct 6 ms 14428 KB Output is correct
9 Correct 6 ms 14428 KB Output is correct
10 Correct 6 ms 14488 KB Output is correct
11 Correct 6 ms 14512 KB Output is correct
12 Correct 7 ms 14428 KB Output is correct
13 Correct 7 ms 14620 KB Output is correct
14 Correct 6 ms 14428 KB Output is correct
15 Correct 6 ms 14568 KB Output is correct
16 Correct 6 ms 14540 KB Output is correct
17 Correct 6 ms 14428 KB Output is correct
18 Correct 6 ms 14428 KB Output is correct
19 Correct 84 ms 32356 KB Output is correct
20 Correct 90 ms 32344 KB Output is correct
21 Correct 83 ms 32080 KB Output is correct
22 Correct 77 ms 31972 KB Output is correct
23 Correct 108 ms 41552 KB Output is correct
24 Correct 91 ms 34392 KB Output is correct
25 Correct 65 ms 33616 KB Output is correct
26 Correct 47 ms 40532 KB Output is correct
27 Correct 142 ms 41556 KB Output is correct
28 Correct 203 ms 76168 KB Output is correct
29 Correct 210 ms 74580 KB Output is correct
30 Correct 138 ms 41528 KB Output is correct
31 Correct 142 ms 41556 KB Output is correct
32 Correct 158 ms 41608 KB Output is correct
33 Correct 167 ms 45000 KB Output is correct
34 Correct 262 ms 69900 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 14428 KB Output is correct
2 Correct 6 ms 14428 KB Output is correct
3 Correct 7 ms 14580 KB Output is correct
4 Correct 6 ms 14428 KB Output is correct
5 Correct 7 ms 14416 KB Output is correct
6 Correct 6 ms 14428 KB Output is correct
7 Correct 6 ms 14404 KB Output is correct
8 Correct 6 ms 14428 KB Output is correct
9 Correct 6 ms 14428 KB Output is correct
10 Correct 6 ms 14488 KB Output is correct
11 Correct 6 ms 14512 KB Output is correct
12 Correct 7 ms 14428 KB Output is correct
13 Correct 7 ms 14620 KB Output is correct
14 Correct 6 ms 14428 KB Output is correct
15 Correct 6 ms 14568 KB Output is correct
16 Correct 6 ms 14540 KB Output is correct
17 Correct 6 ms 14428 KB Output is correct
18 Correct 6 ms 14428 KB Output is correct
19 Correct 7 ms 14428 KB Output is correct
20 Correct 6 ms 14428 KB Output is correct
21 Correct 7 ms 14680 KB Output is correct
22 Correct 8 ms 14684 KB Output is correct
23 Correct 8 ms 14668 KB Output is correct
24 Correct 6 ms 14684 KB Output is correct
25 Correct 7 ms 14684 KB Output is correct
26 Correct 7 ms 14684 KB Output is correct
27 Correct 9 ms 14544 KB Output is correct
28 Correct 7 ms 14684 KB Output is correct
29 Correct 7 ms 14668 KB Output is correct
30 Correct 7 ms 14684 KB Output is correct
31 Correct 8 ms 14684 KB Output is correct
32 Correct 7 ms 14736 KB Output is correct
33 Correct 7 ms 14680 KB Output is correct
34 Correct 7 ms 14736 KB Output is correct
35 Correct 6 ms 14684 KB Output is correct
36 Correct 6 ms 14684 KB Output is correct
37 Correct 6 ms 14684 KB Output is correct
38 Correct 7 ms 14684 KB Output is correct
39 Correct 84 ms 32356 KB Output is correct
40 Correct 90 ms 32344 KB Output is correct
41 Correct 83 ms 32080 KB Output is correct
42 Correct 77 ms 31972 KB Output is correct
43 Correct 108 ms 41552 KB Output is correct
44 Correct 91 ms 34392 KB Output is correct
45 Correct 65 ms 33616 KB Output is correct
46 Correct 47 ms 40532 KB Output is correct
47 Correct 142 ms 41556 KB Output is correct
48 Correct 203 ms 76168 KB Output is correct
49 Correct 210 ms 74580 KB Output is correct
50 Correct 138 ms 41528 KB Output is correct
51 Correct 142 ms 41556 KB Output is correct
52 Correct 158 ms 41608 KB Output is correct
53 Correct 167 ms 45000 KB Output is correct
54 Correct 262 ms 69900 KB Output is correct
55 Correct 15 ms 16960 KB Output is correct
56 Correct 10 ms 15960 KB Output is correct
57 Correct 48 ms 30288 KB Output is correct
58 Correct 39 ms 25288 KB Output is correct
59 Correct 70 ms 45140 KB Output is correct
60 Correct 193 ms 74760 KB Output is correct
61 Correct 167 ms 44112 KB Output is correct
62 Correct 128 ms 41556 KB Output is correct
63 Correct 167 ms 41812 KB Output is correct
64 Correct 329 ms 82972 KB Output is correct
65 Correct 337 ms 81916 KB Output is correct
66 Correct 223 ms 70992 KB Output is correct
67 Correct 112 ms 37564 KB Output is correct
68 Correct 245 ms 54612 KB Output is correct
69 Correct 288 ms 58452 KB Output is correct
70 Correct 249 ms 52820 KB Output is correct