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Submission #484190

# Submission time Handle Problem Language Result Execution time Memory
484190 2021-11-02T10:51:46 Z FEDIKUS Race (IOI11_race) C++17
100 / 100
 396 ms 78268 KB 
#include "race.h"
#include<bits/stdc++.h>
#define xx first
#define yy second

using namespace std;

const int maxn=2e5+10;

vector<pair<int,int> > g[maxn];
pair<pair<int,int> ,map<int,int> > s[maxn];

int merges(pair<pair<int,int> ,map<int,int> > &a,pair<pair<int,int> ,map<int,int> > &b,int c,int k){
    b.xx.xx+=c;
    b.xx.yy+=1;
    if(a.yy.size()<b.yy.size()) swap(a,b);
    int ret=INT_MAX;
    for(auto &i:b.yy){
        if(a.yy.find(k-i.xx-b.xx.xx-a.xx.xx)!=a.yy.end())
            ret=min(ret,a.yy[k-i.xx-b.xx.xx-a.xx.xx]+a.xx.yy+i.yy+b.xx.yy);
    }
    for(auto &i:b.yy){
        if(a.yy.find(i.xx+b.xx.xx-a.xx.xx)!=a.yy.end())
            a.yy[i.xx+b.xx.xx-a.xx.xx]=min(a.yy[i.xx+b.xx.xx-a.xx.xx],i.yy+b.xx.yy-a.xx.yy);
        else
            a.yy[i.xx+b.xx.xx-a.xx.xx]=i.yy+b.xx.yy-a.xx.yy;
    }
    return ret;
}

int dfs(int cvor,int k,int p=-1){
    int ret=INT_MAX;
    for(pair<int,int> i:g[cvor]){
        if(i.xx==p) continue;
        ret=min(ret,dfs(i.xx,k,cvor));
        ret=min(ret,merges(s[cvor],s[i.xx],i.yy,k));
    }
    s[cvor].yy[-s[cvor].xx.xx]=-s[cvor].xx.yy;
    if(s[cvor].yy.find(k-s[cvor].xx.xx)!=s[cvor].yy.end())
        ret=min(ret,s[cvor].yy[k-s[cvor].xx.xx]+s[cvor].xx.yy);
    return ret;
}

int best_path(int n, int k, int h[][2], int l[]){
    for(int i=0;i<n-1;i++){
        g[h[i][0]].push_back(make_pair(h[i][1],l[i]));
        g[h[i][1]].push_back(make_pair(h[i][0],l[i]));
    }
    int ret=dfs(0,k);
    return ret==INT_MAX ? -1:ret;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16076 KB Output is correct
2 Correct 8 ms 15948 KB Output is correct
3 Correct 8 ms 15872 KB Output is correct
4 Correct 7 ms 15948 KB Output is correct
5 Correct 7 ms 15968 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 7 ms 15948 KB Output is correct
9 Correct 7 ms 15964 KB Output is correct
10 Correct 8 ms 15964 KB Output is correct
11 Correct 8 ms 15948 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 7 ms 15880 KB Output is correct
14 Correct 7 ms 15968 KB Output is correct
15 Correct 7 ms 15960 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15956 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16076 KB Output is correct
2 Correct 8 ms 15948 KB Output is correct
3 Correct 8 ms 15872 KB Output is correct
4 Correct 7 ms 15948 KB Output is correct
5 Correct 7 ms 15968 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 7 ms 15948 KB Output is correct
9 Correct 7 ms 15964 KB Output is correct
10 Correct 8 ms 15964 KB Output is correct
11 Correct 8 ms 15948 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 7 ms 15880 KB Output is correct
14 Correct 7 ms 15968 KB Output is correct
15 Correct 7 ms 15960 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15956 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 8 ms 15904 KB Output is correct
20 Correct 8 ms 15948 KB Output is correct
21 Correct 8 ms 16096 KB Output is correct
22 Correct 9 ms 16100 KB Output is correct
23 Correct 9 ms 16076 KB Output is correct
24 Correct 8 ms 16076 KB Output is correct
25 Correct 8 ms 16096 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 8 ms 16076 KB Output is correct
28 Correct 9 ms 16128 KB Output is correct
29 Correct 9 ms 16076 KB Output is correct
30 Correct 9 ms 16076 KB Output is correct
31 Correct 9 ms 16076 KB Output is correct
32 Correct 8 ms 16076 KB Output is correct
33 Correct 8 ms 16176 KB Output is correct
34 Correct 8 ms 16076 KB Output is correct
35 Correct 8 ms 16076 KB Output is correct
36 Correct 8 ms 16076 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 11 ms 16108 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16076 KB Output is correct
2 Correct 8 ms 15948 KB Output is correct
3 Correct 8 ms 15872 KB Output is correct
4 Correct 7 ms 15948 KB Output is correct
5 Correct 7 ms 15968 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 7 ms 15948 KB Output is correct
9 Correct 7 ms 15964 KB Output is correct
10 Correct 8 ms 15964 KB Output is correct
11 Correct 8 ms 15948 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 7 ms 15880 KB Output is correct
14 Correct 7 ms 15968 KB Output is correct
15 Correct 7 ms 15960 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15956 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 100 ms 30560 KB Output is correct
20 Correct 98 ms 30556 KB Output is correct
21 Correct 98 ms 30532 KB Output is correct
22 Correct 98 ms 30660 KB Output is correct
23 Correct 140 ms 40648 KB Output is correct
24 Correct 113 ms 35268 KB Output is correct
25 Correct 63 ms 29536 KB Output is correct
26 Correct 48 ms 35588 KB Output is correct
27 Correct 164 ms 38296 KB Output is correct
28 Correct 189 ms 65016 KB Output is correct
29 Correct 184 ms 63644 KB Output is correct
30 Correct 164 ms 38400 KB Output is correct
31 Correct 173 ms 38408 KB Output is correct
32 Correct 204 ms 38548 KB Output is correct
33 Correct 177 ms 37092 KB Output is correct
34 Correct 272 ms 62068 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 16076 KB Output is correct
2 Correct 8 ms 15948 KB Output is correct
3 Correct 8 ms 15872 KB Output is correct
4 Correct 7 ms 15948 KB Output is correct
5 Correct 7 ms 15968 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 8 ms 15948 KB Output is correct
8 Correct 7 ms 15948 KB Output is correct
9 Correct 7 ms 15964 KB Output is correct
10 Correct 8 ms 15964 KB Output is correct
11 Correct 8 ms 15948 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 7 ms 15880 KB Output is correct
14 Correct 7 ms 15968 KB Output is correct
15 Correct 7 ms 15960 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 7 ms 15956 KB Output is correct
18 Correct 8 ms 15948 KB Output is correct
19 Correct 8 ms 15904 KB Output is correct
20 Correct 8 ms 15948 KB Output is correct
21 Correct 8 ms 16096 KB Output is correct
22 Correct 9 ms 16100 KB Output is correct
23 Correct 9 ms 16076 KB Output is correct
24 Correct 8 ms 16076 KB Output is correct
25 Correct 8 ms 16096 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 8 ms 16076 KB Output is correct
28 Correct 9 ms 16128 KB Output is correct
29 Correct 9 ms 16076 KB Output is correct
30 Correct 9 ms 16076 KB Output is correct
31 Correct 9 ms 16076 KB Output is correct
32 Correct 8 ms 16076 KB Output is correct
33 Correct 8 ms 16176 KB Output is correct
34 Correct 8 ms 16076 KB Output is correct
35 Correct 8 ms 16076 KB Output is correct
36 Correct 8 ms 16076 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 11 ms 16108 KB Output is correct
39 Correct 100 ms 30560 KB Output is correct
40 Correct 98 ms 30556 KB Output is correct
41 Correct 98 ms 30532 KB Output is correct
42 Correct 98 ms 30660 KB Output is correct
43 Correct 140 ms 40648 KB Output is correct
44 Correct 113 ms 35268 KB Output is correct
45 Correct 63 ms 29536 KB Output is correct
46 Correct 48 ms 35588 KB Output is correct
47 Correct 164 ms 38296 KB Output is correct
48 Correct 189 ms 65016 KB Output is correct
49 Correct 184 ms 63644 KB Output is correct
50 Correct 164 ms 38400 KB Output is correct
51 Correct 173 ms 38408 KB Output is correct
52 Correct 204 ms 38548 KB Output is correct
53 Correct 177 ms 37092 KB Output is correct
54 Correct 272 ms 62068 KB Output is correct
55 Correct 19 ms 18236 KB Output is correct
56 Correct 13 ms 17192 KB Output is correct
57 Correct 61 ms 29148 KB Output is correct
58 Correct 48 ms 26788 KB Output is correct
59 Correct 67 ms 40388 KB Output is correct
60 Correct 178 ms 63952 KB Output is correct
61 Correct 203 ms 41088 KB Output is correct
62 Correct 160 ms 38492 KB Output is correct
63 Correct 200 ms 38452 KB Output is correct
64 Correct 396 ms 78268 KB Output is correct
65 Correct 371 ms 78020 KB Output is correct
66 Correct 205 ms 60776 KB Output is correct
67 Correct 160 ms 38888 KB Output is correct
68 Correct 305 ms 52956 KB Output is correct
69 Correct 324 ms 56772 KB Output is correct
70 Correct 285 ms 51520 KB Output is correct