oj.uz

답안 #726641

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
726641 2023-04-19T07:37:12 Z Mauve 경주 (Race) (IOI11_race) C++14
100 / 100
 468 ms 29716 KB 
#include<bits/stdc++.h>
using namespace std;
#define INF 30000000
#define pb push_back
#define ss second
#define ff first
int m,n,sz[200005],cnt[1000005],i,j,x,y,k,p,D[200005],ans;
bool R[200005];
vector< pair<int,int> > v[200005];
vector<int> remover;
int sizer(int node, int pre=-1){
	sz[node]=1;
	for(pair<int,int> i:v[node])
	if(i.ff!=pre && !R[i.ff]) sz[node]+=sizer(i.ff,node);
	return sz[node];
}
int get_centroid(int node, int pre=-1){
	for(pair<int,int> i:v[node])
	if(i.ff!=pre && !R[i.ff] && sz[i.ff]>n/2) return get_centroid(i.ff,node);
	return node;
}
void dfs(int node, int pre, int depth){
	if(D[node]>k || depth > ans) return;
	cnt[D[node]]=min(cnt[D[node]],depth);
	remover.pb(D[node]);
	for(pair<int,int> i : v[node])
	if(i.ff!=pre && !R[i.ff]){
		D[i.ff]=D[node]+i.ss;
		dfs(i.ff,node,depth+1);
	}
}
void shaa(int node, int pre, int depth){
	if(D[node]>k || depth > ans) return;
	ans=min(ans,depth+cnt[k-D[node]]);
	for(pair<int,int> i : v[node])
	if(i.ff!=pre && !R[i.ff]){
	    D[i.ff]=D[node]+i.ss;
	    shaa(i.ff,node,depth+1);
	}
}
void solve(int node){
	n=sizer(node);
	int C=get_centroid(node);
	R[C]=true;
	cnt[0]=0;
	for(pair<int,int> child : v[C])
	if(!R[child.ff]){
	    D[child.ff]=child.ss;
	    shaa(child.ff,C,1);
		dfs(child.ff,C,1);
	}
	for(int i : remover) cnt[i]=INF;
	remover.clear();
	for(pair<int,int> child : v[C])
	if(!R[child.ff]) solve(child.ff);
}
int best_path(int N, int K, int H[][2], int L[])
{
	k=K;
	for(int i=0;i<=k;i++) cnt[i]=INF;
	for(int i=0;i<N-1;i++){
		v[H[i][0]].pb({H[i][1],L[i]});
		v[H[i][1]].pb({H[i][0],L[i]});
	}
	ans=INF;
	solve(1);
	if(ans>=N) return -1;
	else return ans;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4952 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4952 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 5 ms 8660 KB Output is correct
23 Correct 5 ms 8020 KB Output is correct
24 Correct 5 ms 8404 KB Output is correct
25 Correct 5 ms 8276 KB Output is correct
26 Correct 5 ms 6380 KB Output is correct
27 Correct 5 ms 8148 KB Output is correct
28 Correct 4 ms 5844 KB Output is correct
29 Correct 4 ms 6356 KB Output is correct
30 Correct 4 ms 6484 KB Output is correct
31 Correct 5 ms 7636 KB Output is correct
32 Correct 5 ms 7764 KB Output is correct
33 Correct 5 ms 8148 KB Output is correct
34 Correct 5 ms 7380 KB Output is correct
35 Correct 5 ms 8148 KB Output is correct
36 Correct 5 ms 8660 KB Output is correct
37 Correct 5 ms 8148 KB Output is correct
38 Correct 5 ms 6996 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4952 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 111 ms 10760 KB Output is correct
20 Correct 106 ms 10744 KB Output is correct
21 Correct 122 ms 10700 KB Output is correct
22 Correct 119 ms 11120 KB Output is correct
23 Correct 86 ms 10956 KB Output is correct
24 Correct 61 ms 10876 KB Output is correct
25 Correct 146 ms 15856 KB Output is correct
26 Correct 98 ms 16944 KB Output is correct
27 Correct 159 ms 16588 KB Output is correct
28 Correct 293 ms 27008 KB Output is correct
29 Correct 266 ms 22860 KB Output is correct
30 Correct 161 ms 16820 KB Output is correct
31 Correct 162 ms 16684 KB Output is correct
32 Correct 189 ms 16688 KB Output is correct
33 Correct 188 ms 15500 KB Output is correct
34 Correct 181 ms 15552 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 4 ms 4948 KB Output is correct
4 Correct 3 ms 4948 KB Output is correct
5 Correct 3 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 3 ms 4948 KB Output is correct
11 Correct 3 ms 4948 KB Output is correct
12 Correct 3 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 3 ms 4948 KB Output is correct
15 Correct 4 ms 4948 KB Output is correct
16 Correct 3 ms 4952 KB Output is correct
17 Correct 3 ms 4948 KB Output is correct
18 Correct 3 ms 4948 KB Output is correct
19 Correct 2 ms 4948 KB Output is correct
20 Correct 3 ms 4948 KB Output is correct
21 Correct 3 ms 5076 KB Output is correct
22 Correct 5 ms 8660 KB Output is correct
23 Correct 5 ms 8020 KB Output is correct
24 Correct 5 ms 8404 KB Output is correct
25 Correct 5 ms 8276 KB Output is correct
26 Correct 5 ms 6380 KB Output is correct
27 Correct 5 ms 8148 KB Output is correct
28 Correct 4 ms 5844 KB Output is correct
29 Correct 4 ms 6356 KB Output is correct
30 Correct 4 ms 6484 KB Output is correct
31 Correct 5 ms 7636 KB Output is correct
32 Correct 5 ms 7764 KB Output is correct
33 Correct 5 ms 8148 KB Output is correct
34 Correct 5 ms 7380 KB Output is correct
35 Correct 5 ms 8148 KB Output is correct
36 Correct 5 ms 8660 KB Output is correct
37 Correct 5 ms 8148 KB Output is correct
38 Correct 5 ms 6996 KB Output is correct
39 Correct 111 ms 10760 KB Output is correct
40 Correct 106 ms 10744 KB Output is correct
41 Correct 122 ms 10700 KB Output is correct
42 Correct 119 ms 11120 KB Output is correct
43 Correct 86 ms 10956 KB Output is correct
44 Correct 61 ms 10876 KB Output is correct
45 Correct 146 ms 15856 KB Output is correct
46 Correct 98 ms 16944 KB Output is correct
47 Correct 159 ms 16588 KB Output is correct
48 Correct 293 ms 27008 KB Output is correct
49 Correct 266 ms 22860 KB Output is correct
50 Correct 161 ms 16820 KB Output is correct
51 Correct 162 ms 16684 KB Output is correct
52 Correct 189 ms 16688 KB Output is correct
53 Correct 188 ms 15500 KB Output is correct
54 Correct 181 ms 15552 KB Output is correct
55 Correct 11 ms 5668 KB Output is correct
56 Correct 13 ms 5816 KB Output is correct
57 Correct 87 ms 11464 KB Output is correct
58 Correct 33 ms 11856 KB Output is correct
59 Correct 92 ms 17740 KB Output is correct
60 Correct 468 ms 28096 KB Output is correct
61 Correct 184 ms 16848 KB Output is correct
62 Correct 201 ms 21516 KB Output is correct
63 Correct 251 ms 21508 KB Output is correct
64 Correct 458 ms 19364 KB Output is correct
65 Correct 193 ms 16588 KB Output is correct
66 Correct 347 ms 29716 KB Output is correct
67 Correct 125 ms 22576 KB Output is correct
68 Correct 206 ms 20736 KB Output is correct
69 Correct 219 ms 20728 KB Output is correct
70 Correct 160 ms 20176 KB Output is correct