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Submission #484193

# Submission time Handle Problem Language Result Execution time Memory
484193 2021-11-02T10:57:44 Z FEDIKUS Race (IOI11_race) C++17
100 / 100
 382 ms 74980 KB 
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#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 15948 KB Output is correct
2 Correct 7 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15980 KB Output is correct
5 Correct 7 ms 15948 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 7 ms 15900 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 8 ms 15892 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 8 ms 15948 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 7 ms 15936 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 7 ms 15948 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 7 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15980 KB Output is correct
5 Correct 7 ms 15948 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 7 ms 15900 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 8 ms 15892 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 8 ms 15948 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 7 ms 15936 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 7 ms 15948 KB Output is correct
19 Correct 8 ms 15948 KB Output is correct
20 Correct 7 ms 15948 KB Output is correct
21 Correct 9 ms 16204 KB Output is correct
22 Correct 9 ms 16076 KB Output is correct
23 Correct 9 ms 16076 KB Output is correct
24 Correct 10 ms 16120 KB Output is correct
25 Correct 9 ms 16108 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 8 ms 15948 KB Output is correct
28 Correct 9 ms 16048 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 16168 KB Output is correct
32 Correct 9 ms 16076 KB Output is correct
33 Correct 9 ms 16076 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 16084 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 8 ms 16068 KB Output is correct

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 7 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15980 KB Output is correct
5 Correct 7 ms 15948 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 7 ms 15900 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 8 ms 15892 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 8 ms 15948 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 7 ms 15936 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 7 ms 15948 KB Output is correct
19 Correct 107 ms 29336 KB Output is correct
20 Correct 100 ms 29192 KB Output is correct
21 Correct 97 ms 29196 KB Output is correct
22 Correct 100 ms 29252 KB Output is correct
23 Correct 134 ms 38984 KB Output is correct
24 Correct 118 ms 34048 KB Output is correct
25 Correct 66 ms 28952 KB Output is correct
26 Correct 48 ms 35844 KB Output is correct
27 Correct 166 ms 35396 KB Output is correct
28 Correct 183 ms 65136 KB Output is correct
29 Correct 194 ms 63444 KB Output is correct
30 Correct 162 ms 35396 KB Output is correct
31 Correct 159 ms 35396 KB Output is correct
32 Correct 209 ms 35636 KB Output is correct
33 Correct 189 ms 34208 KB Output is correct
34 Correct 272 ms 58280 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 15948 KB Output is correct
2 Correct 7 ms 15948 KB Output is correct
3 Correct 9 ms 15948 KB Output is correct
4 Correct 8 ms 15980 KB Output is correct
5 Correct 7 ms 15948 KB Output is correct
6 Correct 7 ms 15948 KB Output is correct
7 Correct 7 ms 15900 KB Output is correct
8 Correct 8 ms 15948 KB Output is correct
9 Correct 8 ms 15948 KB Output is correct
10 Correct 8 ms 15948 KB Output is correct
11 Correct 8 ms 15892 KB Output is correct
12 Correct 8 ms 15948 KB Output is correct
13 Correct 8 ms 15948 KB Output is correct
14 Correct 8 ms 15948 KB Output is correct
15 Correct 7 ms 15936 KB Output is correct
16 Correct 8 ms 15948 KB Output is correct
17 Correct 8 ms 15948 KB Output is correct
18 Correct 7 ms 15948 KB Output is correct
19 Correct 8 ms 15948 KB Output is correct
20 Correct 7 ms 15948 KB Output is correct
21 Correct 9 ms 16204 KB Output is correct
22 Correct 9 ms 16076 KB Output is correct
23 Correct 9 ms 16076 KB Output is correct
24 Correct 10 ms 16120 KB Output is correct
25 Correct 9 ms 16108 KB Output is correct
26 Correct 9 ms 16076 KB Output is correct
27 Correct 8 ms 15948 KB Output is correct
28 Correct 9 ms 16048 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 16168 KB Output is correct
32 Correct 9 ms 16076 KB Output is correct
33 Correct 9 ms 16076 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 16084 KB Output is correct
37 Correct 8 ms 16076 KB Output is correct
38 Correct 8 ms 16068 KB Output is correct
39 Correct 107 ms 29336 KB Output is correct
40 Correct 100 ms 29192 KB Output is correct
41 Correct 97 ms 29196 KB Output is correct
42 Correct 100 ms 29252 KB Output is correct
43 Correct 134 ms 38984 KB Output is correct
44 Correct 118 ms 34048 KB Output is correct
45 Correct 66 ms 28952 KB Output is correct
46 Correct 48 ms 35844 KB Output is correct
47 Correct 166 ms 35396 KB Output is correct
48 Correct 183 ms 65136 KB Output is correct
49 Correct 194 ms 63444 KB Output is correct
50 Correct 162 ms 35396 KB Output is correct
51 Correct 159 ms 35396 KB Output is correct
52 Correct 209 ms 35636 KB Output is correct
53 Correct 189 ms 34208 KB Output is correct
54 Correct 272 ms 58280 KB Output is correct
55 Correct 21 ms 18080 KB Output is correct
56 Correct 13 ms 16972 KB Output is correct
57 Correct 69 ms 28164 KB Output is correct
58 Correct 48 ms 25656 KB Output is correct
59 Correct 69 ms 40516 KB Output is correct
60 Correct 181 ms 64176 KB Output is correct
61 Correct 204 ms 38212 KB Output is correct
62 Correct 159 ms 35556 KB Output is correct
63 Correct 202 ms 35604 KB Output is correct
64 Correct 382 ms 74980 KB Output is correct
65 Correct 372 ms 74304 KB Output is correct
66 Correct 195 ms 59956 KB Output is correct
67 Correct 152 ms 35696 KB Output is correct
68 Correct 288 ms 49476 KB Output is correct
69 Correct 317 ms 53368 KB Output is correct
70 Correct 289 ms 48192 KB Output is correct