| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 50060 |
2018-06-07T08:20:31 Z |
Diuven |
Race (IOI11_race) |
C++11 |
|
714 ms |
33520 KB |
#include "race.h"
#include <bits/stdc++.h>
using namespace std;
const int KMX=1000010, MX=200010, inf=2e9;
typedef pair<int, int> pii;
vector<pii> G[MX];
bool done[MX];
int sub[MX];
void init(int v, int par=-1){
sub[v]=1;
for(pii &p:G[v]){
int x=p.first;
if(done[x] || x==par) continue;
init(x,v); sub[v]+=sub[x];
}
}
int findcen(int v, int sz){
for(pii &p:G[v]){
int x=p.first;
if(done[x] || sub[x]>sub[v]) continue;
if(sub[x]*2>=sz) return findcen(x,sz);
}
return v;
}
int dist[KMX];
vector<pii> V, W;
int n, k;
void dfs(int v, int par=-1, int dep=0, int cnt=0){
for(pii &p:G[v]){
int x,c; tie(x,c)=p;
if(x==par || done[x]) continue;
dfs(x,v,dep+c,cnt+1);
}
if(0<dep && dep<=k){
V.push_back({dep, cnt});
}
}
int solve(int v){
init(v); v=findcen(v, sub[v]); done[v]=true;
int ans=inf;
for(pii &p:G[v]){
int x,c; tie(x,c)=p;
if(done[x]) continue;
dfs(x,v,c,1);
// cutting?
for(pii &q:V){
int dep, cnt; tie(dep, cnt)=q;
ans=min(ans, cnt+dist[k-dep]);
}
for(pii &q:V){
int dep, cnt; tie(dep, cnt)=q;
dist[dep]=min(dist[dep], cnt);
W.push_back(q);
}
V.clear();
}
for(pii &q:W){
int dep=q.first;
dist[dep]=inf;
}
W.clear();
for(pii &p:G[v]){
int x=p.first;
if(done[x]) continue;
ans=min(solve(x), ans);
}
return ans;
}
int best_path(int N, int K, int H[][2], int L[]){
n=N, k=K;
for(int i=0; i<n-1; i++){
int u=H[i][0], v=H[i][1], c=L[i];
G[u].push_back({v,c});
G[v].push_back({u,c});
}
fill(dist+1, dist+k+1, inf);
int ans=solve(0);
return ans>=inf/2 ? -1 : ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5284 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 8 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 9 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5396 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 12 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 14 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 16 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5284 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 8 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 9 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5396 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 12 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 14 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 16 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5396 KB |
Output is correct |
| 19 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 20 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 22 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 23 |
Correct |
11 ms |
8940 KB |
Output is correct |
| 24 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 25 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 26 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 27 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 28 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 29 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 30 |
Correct |
8 ms |
8940 KB |
Output is correct |
| 31 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 32 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 33 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 34 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 35 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 36 |
Correct |
9 ms |
8956 KB |
Output is correct |
| 37 |
Correct |
10 ms |
8956 KB |
Output is correct |
| 38 |
Correct |
11 ms |
8956 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5284 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 8 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 9 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5396 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 12 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 14 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 16 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5396 KB |
Output is correct |
| 19 |
Correct |
167 ms |
10920 KB |
Output is correct |
| 20 |
Correct |
180 ms |
10920 KB |
Output is correct |
| 21 |
Correct |
210 ms |
11384 KB |
Output is correct |
| 22 |
Correct |
184 ms |
12024 KB |
Output is correct |
| 23 |
Correct |
135 ms |
12024 KB |
Output is correct |
| 24 |
Correct |
100 ms |
12024 KB |
Output is correct |
| 25 |
Correct |
259 ms |
14968 KB |
Output is correct |
| 26 |
Correct |
102 ms |
17780 KB |
Output is correct |
| 27 |
Correct |
290 ms |
17780 KB |
Output is correct |
| 28 |
Correct |
618 ms |
27284 KB |
Output is correct |
| 29 |
Correct |
575 ms |
27284 KB |
Output is correct |
| 30 |
Correct |
222 ms |
27284 KB |
Output is correct |
| 31 |
Correct |
261 ms |
27284 KB |
Output is correct |
| 32 |
Correct |
357 ms |
27284 KB |
Output is correct |
| 33 |
Correct |
518 ms |
27284 KB |
Output is correct |
| 34 |
Correct |
513 ms |
27284 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5112 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 3 |
Correct |
5 ms |
5216 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5228 KB |
Output is correct |
| 5 |
Correct |
6 ms |
5284 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 7 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 8 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 9 |
Correct |
5 ms |
5396 KB |
Output is correct |
| 10 |
Correct |
8 ms |
5396 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 12 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 13 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 14 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 15 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 16 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 17 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 18 |
Correct |
9 ms |
5396 KB |
Output is correct |
| 19 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 20 |
Correct |
6 ms |
5396 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5396 KB |
Output is correct |
| 22 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 23 |
Correct |
11 ms |
8940 KB |
Output is correct |
| 24 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 25 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 26 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 27 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 28 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 29 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 30 |
Correct |
8 ms |
8940 KB |
Output is correct |
| 31 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 32 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 33 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 34 |
Correct |
10 ms |
8940 KB |
Output is correct |
| 35 |
Correct |
9 ms |
8940 KB |
Output is correct |
| 36 |
Correct |
9 ms |
8956 KB |
Output is correct |
| 37 |
Correct |
10 ms |
8956 KB |
Output is correct |
| 38 |
Correct |
11 ms |
8956 KB |
Output is correct |
| 39 |
Correct |
167 ms |
10920 KB |
Output is correct |
| 40 |
Correct |
180 ms |
10920 KB |
Output is correct |
| 41 |
Correct |
210 ms |
11384 KB |
Output is correct |
| 42 |
Correct |
184 ms |
12024 KB |
Output is correct |
| 43 |
Correct |
135 ms |
12024 KB |
Output is correct |
| 44 |
Correct |
100 ms |
12024 KB |
Output is correct |
| 45 |
Correct |
259 ms |
14968 KB |
Output is correct |
| 46 |
Correct |
102 ms |
17780 KB |
Output is correct |
| 47 |
Correct |
290 ms |
17780 KB |
Output is correct |
| 48 |
Correct |
618 ms |
27284 KB |
Output is correct |
| 49 |
Correct |
575 ms |
27284 KB |
Output is correct |
| 50 |
Correct |
222 ms |
27284 KB |
Output is correct |
| 51 |
Correct |
261 ms |
27284 KB |
Output is correct |
| 52 |
Correct |
357 ms |
27284 KB |
Output is correct |
| 53 |
Correct |
518 ms |
27284 KB |
Output is correct |
| 54 |
Correct |
513 ms |
27284 KB |
Output is correct |
| 55 |
Correct |
18 ms |
27284 KB |
Output is correct |
| 56 |
Correct |
22 ms |
27284 KB |
Output is correct |
| 57 |
Correct |
90 ms |
27284 KB |
Output is correct |
| 58 |
Correct |
53 ms |
27284 KB |
Output is correct |
| 59 |
Correct |
134 ms |
27284 KB |
Output is correct |
| 60 |
Correct |
563 ms |
33520 KB |
Output is correct |
| 61 |
Correct |
230 ms |
33520 KB |
Output is correct |
| 62 |
Correct |
288 ms |
33520 KB |
Output is correct |
| 63 |
Correct |
307 ms |
33520 KB |
Output is correct |
| 64 |
Correct |
604 ms |
33520 KB |
Output is correct |
| 65 |
Correct |
441 ms |
33520 KB |
Output is correct |
| 66 |
Correct |
714 ms |
33520 KB |
Output is correct |
| 67 |
Correct |
178 ms |
33520 KB |
Output is correct |
| 68 |
Correct |
323 ms |
33520 KB |
Output is correct |
| 69 |
Correct |
330 ms |
33520 KB |
Output is correct |
| 70 |
Correct |
299 ms |
33520 KB |
Output is correct |
