| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 233977 |
2020-05-22T14:50:42 Z |
amiratou |
Race (IOI11_race) |
C++14 |
|
1867 ms |
83400 KB |
#pragma GCC target ("avx2")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#include "race.h"
using namespace std;
#define fi first
#define se second
#define ll long long
bool dead[200005];
int s[200005],n,k;
ll ans=LLONG_MAX;
vector<vector<pair<int,int> > > vec;
map<ll,multiset<int> > mymap;
vector<map<ll,int> > best;
int dfs(int node,int p,int s_p,bool flag=0,int d=0,ll h=0){
if(flag&&(s_p!=-1)){
if(best[s_p].count(h))best[s_p][h]=min(best[s_p][h],d);
else best[s_p][h]=d;
}
s[node]=1;
for(auto it:vec[node])
if(it.fi!=p&&!dead[it.fi])
s[node]+=dfs(it.fi,node,((!d)?it.fi:s_p),flag,d+1,h+it.se);
return s[node];
}
int find_cetroid(int node,int p){
for(auto it:vec[node])
if(it.fi!=p&&!dead[it.fi]&&s[it.fi]>(n/2))
return find_cetroid(it.fi,node);
return node;
}
void solve(int node){
n=dfs(node,node,-1);
int r=find_cetroid(node,node);
mymap.clear();
dfs(r,r,-1,1);
for(auto it:vec[r]){
if(dead[it.fi])continue;
for(auto it2:best[it.fi])
mymap[it2.fi].insert(it2.se);
}
for(auto it:vec[r]){
if(dead[it.fi])continue;
for(auto it3:best[it.fi]){
if(it3.fi>k)break;
if(!mymap.count(k-it3.fi))continue;
auto hk=mymap[k-it3.fi].begin();
if((best[it.fi].count(k-it3.fi))&&((*hk)==best[it.fi][k-it3.fi]))hk++;
if(hk!=mymap[k-it3.fi].end())ans=min(ans,(ll)(*hk)+it3.se);
}
if(best[it.fi].count(k))ans=min(ans,(ll)best[it.fi][k]);
best[it.fi].clear();
}
dead[r]=1;
for(auto it:vec[r])
if(!dead[it.fi])
solve(it.fi);
}
int best_path(int N, int K, int H[][2], int L[])
{
best.resize(N);
k=K;
vec.resize(N);
for (int i = 0; i < N-1; ++i)
{
vec[H[i][0]].push_back({H[i][1],L[i]});
vec[H[i][1]].push_back({H[i][0],L[i]});
}
solve(0);
return ((ans==LLONG_MAX)?(-1):ans);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
6 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
5 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
6 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
5 ms |
384 KB |
Output is correct |
| 19 |
Correct |
5 ms |
384 KB |
Output is correct |
| 20 |
Correct |
5 ms |
384 KB |
Output is correct |
| 21 |
Correct |
7 ms |
512 KB |
Output is correct |
| 22 |
Correct |
8 ms |
640 KB |
Output is correct |
| 23 |
Correct |
7 ms |
640 KB |
Output is correct |
| 24 |
Correct |
7 ms |
640 KB |
Output is correct |
| 25 |
Correct |
7 ms |
640 KB |
Output is correct |
| 26 |
Correct |
7 ms |
640 KB |
Output is correct |
| 27 |
Correct |
6 ms |
512 KB |
Output is correct |
| 28 |
Correct |
7 ms |
640 KB |
Output is correct |
| 29 |
Correct |
7 ms |
640 KB |
Output is correct |
| 30 |
Correct |
7 ms |
640 KB |
Output is correct |
| 31 |
Correct |
7 ms |
640 KB |
Output is correct |
| 32 |
Correct |
7 ms |
640 KB |
Output is correct |
| 33 |
Correct |
8 ms |
640 KB |
Output is correct |
| 34 |
Correct |
7 ms |
640 KB |
Output is correct |
| 35 |
Correct |
7 ms |
640 KB |
Output is correct |
| 36 |
Correct |
7 ms |
640 KB |
Output is correct |
| 37 |
Correct |
7 ms |
640 KB |
Output is correct |
| 38 |
Correct |
7 ms |
640 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
6 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
5 ms |
384 KB |
Output is correct |
| 19 |
Correct |
358 ms |
12780 KB |
Output is correct |
| 20 |
Correct |
373 ms |
12920 KB |
Output is correct |
| 21 |
Correct |
377 ms |
12924 KB |
Output is correct |
| 22 |
Correct |
340 ms |
13176 KB |
Output is correct |
| 23 |
Correct |
472 ms |
13432 KB |
Output is correct |
| 24 |
Correct |
233 ms |
13304 KB |
Output is correct |
| 25 |
Correct |
299 ms |
19016 KB |
Output is correct |
| 26 |
Correct |
136 ms |
21624 KB |
Output is correct |
| 27 |
Correct |
553 ms |
36856 KB |
Output is correct |
| 28 |
Correct |
1827 ms |
83400 KB |
Output is correct |
| 29 |
Correct |
1777 ms |
82040 KB |
Output is correct |
| 30 |
Correct |
546 ms |
36856 KB |
Output is correct |
| 31 |
Correct |
535 ms |
36856 KB |
Output is correct |
| 32 |
Correct |
620 ms |
36824 KB |
Output is correct |
| 33 |
Correct |
904 ms |
25080 KB |
Output is correct |
| 34 |
Correct |
1567 ms |
64508 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
5 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
6 ms |
384 KB |
Output is correct |
| 12 |
Correct |
5 ms |
384 KB |
Output is correct |
| 13 |
Correct |
5 ms |
384 KB |
Output is correct |
| 14 |
Correct |
5 ms |
384 KB |
Output is correct |
| 15 |
Correct |
5 ms |
384 KB |
Output is correct |
| 16 |
Correct |
5 ms |
384 KB |
Output is correct |
| 17 |
Correct |
5 ms |
384 KB |
Output is correct |
| 18 |
Correct |
5 ms |
384 KB |
Output is correct |
| 19 |
Correct |
5 ms |
384 KB |
Output is correct |
| 20 |
Correct |
5 ms |
384 KB |
Output is correct |
| 21 |
Correct |
7 ms |
512 KB |
Output is correct |
| 22 |
Correct |
8 ms |
640 KB |
Output is correct |
| 23 |
Correct |
7 ms |
640 KB |
Output is correct |
| 24 |
Correct |
7 ms |
640 KB |
Output is correct |
| 25 |
Correct |
7 ms |
640 KB |
Output is correct |
| 26 |
Correct |
7 ms |
640 KB |
Output is correct |
| 27 |
Correct |
6 ms |
512 KB |
Output is correct |
| 28 |
Correct |
7 ms |
640 KB |
Output is correct |
| 29 |
Correct |
7 ms |
640 KB |
Output is correct |
| 30 |
Correct |
7 ms |
640 KB |
Output is correct |
| 31 |
Correct |
7 ms |
640 KB |
Output is correct |
| 32 |
Correct |
7 ms |
640 KB |
Output is correct |
| 33 |
Correct |
8 ms |
640 KB |
Output is correct |
| 34 |
Correct |
7 ms |
640 KB |
Output is correct |
| 35 |
Correct |
7 ms |
640 KB |
Output is correct |
| 36 |
Correct |
7 ms |
640 KB |
Output is correct |
| 37 |
Correct |
7 ms |
640 KB |
Output is correct |
| 38 |
Correct |
7 ms |
640 KB |
Output is correct |
| 39 |
Correct |
358 ms |
12780 KB |
Output is correct |
| 40 |
Correct |
373 ms |
12920 KB |
Output is correct |
| 41 |
Correct |
377 ms |
12924 KB |
Output is correct |
| 42 |
Correct |
340 ms |
13176 KB |
Output is correct |
| 43 |
Correct |
472 ms |
13432 KB |
Output is correct |
| 44 |
Correct |
233 ms |
13304 KB |
Output is correct |
| 45 |
Correct |
299 ms |
19016 KB |
Output is correct |
| 46 |
Correct |
136 ms |
21624 KB |
Output is correct |
| 47 |
Correct |
553 ms |
36856 KB |
Output is correct |
| 48 |
Correct |
1827 ms |
83400 KB |
Output is correct |
| 49 |
Correct |
1777 ms |
82040 KB |
Output is correct |
| 50 |
Correct |
546 ms |
36856 KB |
Output is correct |
| 51 |
Correct |
535 ms |
36856 KB |
Output is correct |
| 52 |
Correct |
620 ms |
36824 KB |
Output is correct |
| 53 |
Correct |
904 ms |
25080 KB |
Output is correct |
| 54 |
Correct |
1567 ms |
64508 KB |
Output is correct |
| 55 |
Correct |
41 ms |
2944 KB |
Output is correct |
| 56 |
Correct |
26 ms |
1664 KB |
Output is correct |
| 57 |
Correct |
200 ms |
12920 KB |
Output is correct |
| 58 |
Correct |
101 ms |
23916 KB |
Output is correct |
| 59 |
Correct |
603 ms |
39672 KB |
Output is correct |
| 60 |
Correct |
1867 ms |
81104 KB |
Output is correct |
| 61 |
Correct |
584 ms |
42360 KB |
Output is correct |
| 62 |
Correct |
520 ms |
36856 KB |
Output is correct |
| 63 |
Correct |
642 ms |
36988 KB |
Output is correct |
| 64 |
Correct |
1769 ms |
49528 KB |
Output is correct |
| 65 |
Correct |
1442 ms |
65784 KB |
Output is correct |
| 66 |
Correct |
1825 ms |
78840 KB |
Output is correct |
| 67 |
Correct |
334 ms |
47592 KB |
Output is correct |
| 68 |
Correct |
853 ms |
61336 KB |
Output is correct |
| 69 |
Correct |
897 ms |
62048 KB |
Output is correct |
| 70 |
Correct |
828 ms |
58616 KB |
Output is correct |
