답안 #713011

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
713011	2023-03-20T20:16:10 Z	Ahmed57	경주 (Race) (IOI11_race)	C++14	100 / 100	1392 ms	51184 KB

race

#include <bits/stdc++.h>

using namespace std;
int sz[200007];long long all = 0;
int vis[200007];
vector<pair<int,int>> adj[200007];
bool ss = 0;
map<long long,long long> mp;
long long k;
long long ans = 1e18;
void calc(int no,int pr,long long dep,long long cost){
    if(cost>k)return ;
    if(ss){
        if(mp[cost]==0)mp[cost] = dep;
        else mp[cost] = min(mp[cost],dep);
    }else{
        if(mp[k-cost]!=0){
            ans = min(ans,dep+mp[k-cost]-2);
        }
    }
    for(auto i:adj[no]){
        if(i.first==pr||vis[i.first])continue;
        calc(i.first,no,dep+1,cost+i.second);
    }
}
int dfs(int no,int pr){
    sz[no] = 1;
    for(auto i:adj[no]){
        if(i.first==pr||vis[i.first]!=0)continue;
        sz[no]+=dfs(i.first,no);
    }
    return sz[no];
}
int get_centroid(int no,int ss,int pr){
    for(auto i:adj[no]){
        if(pr==i.first||vis[i.first]!=0)continue;
        if(sz[i.first]*2>ss){
            return get_centroid(i.first,ss,no);
        }
    }
    return no;
}
void centroid(int no){
    int cen = get_centroid(no,dfs(no,-1),-1);
    mp.clear();
    mp[0] = 1;
    vis[cen] = 1;
    for(auto i:adj[cen]){
        if(vis[i.first])continue;
        ss = 0;
        calc(i.first,-1,2,i.second);
        ss = 1;
        calc(i.first,-1,2,i.second);
    }
    for(auto i:adj[cen]){
        if(vis[i.first])continue;
        centroid(i.first);
    }
}
int best_path(int N,int K,int H[][2],int L[]){
    k = K;
    for(int i = 0;i<N-1;i++){
        adj[H[i][0]+1].push_back({H[i][1]+1,L[i]});
        adj[H[i][1]+1].push_back({H[i][0]+1,L[i]});
    }
    centroid(1);
    return (ans==1e18?-1:ans);
}
/*
int main(){
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int N = 3 , K = 3;
    int L[] = {1,2,4};
    int H[3][2] = {{0,1},{1,2},{1,3}};
    cout<<best_path(N,K,H,L);
}
*/

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	5016 KB	Output is correct
4	Correct	3 ms	5012 KB	Output is correct
5	Correct	3 ms	5020 KB	Output is correct
6	Correct	3 ms	5020 KB	Output is correct
7	Correct	3 ms	5020 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	5016 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	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 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	5016 KB	Output is correct
4	Correct	3 ms	5012 KB	Output is correct
5	Correct	3 ms	5020 KB	Output is correct
6	Correct	3 ms	5020 KB	Output is correct
7	Correct	3 ms	5020 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	5016 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	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	5 ms	5020 KB	Output is correct
22	Correct	4 ms	5076 KB	Output is correct
23	Correct	4 ms	5024 KB	Output is correct
24	Correct	4 ms	5076 KB	Output is correct
25	Correct	5 ms	5156 KB	Output is correct
26	Correct	4 ms	5076 KB	Output is correct
27	Correct	3 ms	5036 KB	Output is correct
28	Correct	5 ms	5156 KB	Output is correct
29	Correct	5 ms	5204 KB	Output is correct
30	Correct	5 ms	5204 KB	Output is correct
31	Correct	5 ms	5152 KB	Output is correct
32	Correct	5 ms	5204 KB	Output is correct
33	Correct	6 ms	5204 KB	Output is correct
34	Correct	4 ms	5028 KB	Output is correct
35	Correct	5 ms	5076 KB	Output is correct
36	Correct	5 ms	5020 KB	Output is correct
37	Correct	5 ms	5204 KB	Output is correct
38	Correct	5 ms	5148 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	5016 KB	Output is correct
4	Correct	3 ms	5012 KB	Output is correct
5	Correct	3 ms	5020 KB	Output is correct
6	Correct	3 ms	5020 KB	Output is correct
7	Correct	3 ms	5020 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	5016 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	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	227 ms	11972 KB	Output is correct
20	Correct	227 ms	11980 KB	Output is correct
21	Correct	229 ms	11992 KB	Output is correct
22	Correct	220 ms	12096 KB	Output is correct
23	Correct	92 ms	12304 KB	Output is correct
24	Correct	83 ms	12192 KB	Output is correct
25	Correct	155 ms	14736 KB	Output is correct
26	Correct	109 ms	17660 KB	Output is correct
27	Correct	234 ms	18124 KB	Output is correct
28	Correct	268 ms	29968 KB	Output is correct
29	Correct	276 ms	29064 KB	Output is correct
30	Correct	239 ms	18796 KB	Output is correct
31	Correct	230 ms	18708 KB	Output is correct
32	Correct	259 ms	18860 KB	Output is correct
33	Correct	354 ms	17536 KB	Output is correct
34	Correct	182 ms	17628 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	5016 KB	Output is correct
4	Correct	3 ms	5012 KB	Output is correct
5	Correct	3 ms	5020 KB	Output is correct
6	Correct	3 ms	5020 KB	Output is correct
7	Correct	3 ms	5020 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	5016 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	3 ms	4948 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	4948 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	5 ms	5020 KB	Output is correct
22	Correct	4 ms	5076 KB	Output is correct
23	Correct	4 ms	5024 KB	Output is correct
24	Correct	4 ms	5076 KB	Output is correct
25	Correct	5 ms	5156 KB	Output is correct
26	Correct	4 ms	5076 KB	Output is correct
27	Correct	3 ms	5036 KB	Output is correct
28	Correct	5 ms	5156 KB	Output is correct
29	Correct	5 ms	5204 KB	Output is correct
30	Correct	5 ms	5204 KB	Output is correct
31	Correct	5 ms	5152 KB	Output is correct
32	Correct	5 ms	5204 KB	Output is correct
33	Correct	6 ms	5204 KB	Output is correct
34	Correct	4 ms	5028 KB	Output is correct
35	Correct	5 ms	5076 KB	Output is correct
36	Correct	5 ms	5020 KB	Output is correct
37	Correct	5 ms	5204 KB	Output is correct
38	Correct	5 ms	5148 KB	Output is correct
39	Correct	227 ms	11972 KB	Output is correct
40	Correct	227 ms	11980 KB	Output is correct
41	Correct	229 ms	11992 KB	Output is correct
42	Correct	220 ms	12096 KB	Output is correct
43	Correct	92 ms	12304 KB	Output is correct
44	Correct	83 ms	12192 KB	Output is correct
45	Correct	155 ms	14736 KB	Output is correct
46	Correct	109 ms	17660 KB	Output is correct
47	Correct	234 ms	18124 KB	Output is correct
48	Correct	268 ms	29968 KB	Output is correct
49	Correct	276 ms	29064 KB	Output is correct
50	Correct	239 ms	18796 KB	Output is correct
51	Correct	230 ms	18708 KB	Output is correct
52	Correct	259 ms	18860 KB	Output is correct
53	Correct	354 ms	17536 KB	Output is correct
54	Correct	182 ms	17628 KB	Output is correct
55	Correct	26 ms	5972 KB	Output is correct
56	Correct	19 ms	5588 KB	Output is correct
57	Correct	183 ms	12216 KB	Output is correct
58	Correct	46 ms	11948 KB	Output is correct
59	Correct	422 ms	26532 KB	Output is correct
60	Correct	1289 ms	51184 KB	Output is correct
61	Correct	341 ms	18988 KB	Output is correct
62	Correct	365 ms	19148 KB	Output is correct
63	Correct	429 ms	19236 KB	Output is correct
64	Correct	1392 ms	30716 KB	Output is correct
65	Correct	211 ms	18788 KB	Output is correct
66	Correct	819 ms	27596 KB	Output is correct
67	Correct	140 ms	19276 KB	Output is correct
68	Correct	558 ms	28484 KB	Output is correct
69	Correct	533 ms	28236 KB	Output is correct
70	Correct	523 ms	27684 KB	Output is correct

답안 #713011

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 12.0 / 12.0

Subtask #3 22.0 / 22.0

Subtask #4 57.0 / 57.0

Subtask #1
9.0 / 9.0

Subtask #2
12.0 / 12.0

Subtask #3
22.0 / 22.0

Subtask #4
57.0 / 57.0