답안 #929149

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
929149	2024-02-17T18:42:57 Z	imarn	Cat Exercise (JOI23_ho_t4)	C++14	100 / 100	236 ms	44628 KB

Main

#include<bits/stdc++.h>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vvi vector<vi>
#define vp vector<pii>
using namespace std;
const int N=2e5+5;
vector<int>g[N];
int pr[N],up[N][21],dep[N],h[N];
ll dp[N]{0};
int get(int r){
    return pr[r]==r?r:pr[r]=get(pr[r]);
}
void dfs(int u,int p,int l){
    up[u][0]=p;dep[u]=l;
    for(int i=1;i<=20;i++)up[u][i]=up[up[u][i-1]][i-1];
    for(auto v:g[u]){
        if(v==p)continue;
        dfs(v,u,l+1);
    }
}
int qr(int a,int b){
    if(dep[a]>dep[b])swap(a,b);
    for(int i=20;i>=0;i--)if(dep[up[b][i]]>=dep[a])b=up[b][i];
    if(a==b)return a;
    for(int i=20;i>=0;i--)if(up[a][i]!=up[b][i])a=up[a][i],b=up[b][i];
    return up[a][0];
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n;cin>>n;
    for(int i=1;i<=n;i++)cin>>h[i];
    for(int i=1,u,v;i<=n-1;i++){
        cin>>u>>v;g[h[u]].pb(h[v]);g[h[v]].pb(h[u]);
    }iota(pr,pr+n+1,0);dfs(1,1,0);
    for(int i=2;i<=n;i++){
        for(auto v:g[i]){
            int p=get(v);
            if(p<i)dp[i]=max(dp[i],dp[p]+dep[p]+dep[i]-2*dep[qr(i,p)]),pr[p]=i;
        }
    }cout<<dp[n];
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	11100 KB	Output is correct
5	Correct	2 ms	10840 KB	Output is correct
6	Correct	2 ms	10964 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10840 KB	Output is correct
9	Correct	2 ms	10840 KB	Output is correct
10	Correct	2 ms	11096 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	11100 KB	Output is correct
5	Correct	2 ms	10840 KB	Output is correct
6	Correct	2 ms	10964 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10840 KB	Output is correct
9	Correct	2 ms	10840 KB	Output is correct
10	Correct	2 ms	11096 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10960 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	3 ms	11100 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10844 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct

Subtask #3
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	11100 KB	Output is correct
5	Correct	2 ms	10840 KB	Output is correct
6	Correct	2 ms	10964 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10840 KB	Output is correct
9	Correct	2 ms	10840 KB	Output is correct
10	Correct	2 ms	11096 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10960 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	3 ms	11100 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10844 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	5 ms	11292 KB	Output is correct
19	Correct	5 ms	11356 KB	Output is correct
20	Correct	4 ms	11356 KB	Output is correct
21	Correct	5 ms	11356 KB	Output is correct
22	Correct	4 ms	11356 KB	Output is correct
23	Correct	4 ms	11356 KB	Output is correct
24	Correct	4 ms	11356 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	11100 KB	Output is correct
5	Correct	2 ms	10840 KB	Output is correct
6	Correct	2 ms	10964 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10840 KB	Output is correct
9	Correct	2 ms	10840 KB	Output is correct
10	Correct	2 ms	11096 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10960 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	3 ms	11100 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10844 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	5 ms	11292 KB	Output is correct
19	Correct	5 ms	11356 KB	Output is correct
20	Correct	4 ms	11356 KB	Output is correct
21	Correct	5 ms	11356 KB	Output is correct
22	Correct	4 ms	11356 KB	Output is correct
23	Correct	4 ms	11356 KB	Output is correct
24	Correct	4 ms	11356 KB	Output is correct
25	Correct	2 ms	10844 KB	Output is correct
26	Correct	4 ms	11180 KB	Output is correct
27	Correct	5 ms	11328 KB	Output is correct
28	Correct	4 ms	11356 KB	Output is correct
29	Correct	4 ms	11356 KB	Output is correct
30	Correct	4 ms	11096 KB	Output is correct
31	Correct	5 ms	11228 KB	Output is correct
32	Correct	5 ms	11100 KB	Output is correct
33	Correct	4 ms	11352 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	11100 KB	Output is correct
5	Correct	2 ms	10840 KB	Output is correct
6	Correct	2 ms	10964 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10840 KB	Output is correct
9	Correct	2 ms	10840 KB	Output is correct
10	Correct	2 ms	11096 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10960 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	3 ms	11100 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10844 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	5 ms	11292 KB	Output is correct
19	Correct	5 ms	11356 KB	Output is correct
20	Correct	4 ms	11356 KB	Output is correct
21	Correct	5 ms	11356 KB	Output is correct
22	Correct	4 ms	11356 KB	Output is correct
23	Correct	4 ms	11356 KB	Output is correct
24	Correct	4 ms	11356 KB	Output is correct
25	Correct	121 ms	40016 KB	Output is correct
26	Correct	120 ms	44628 KB	Output is correct
27	Correct	105 ms	44600 KB	Output is correct
28	Correct	182 ms	44396 KB	Output is correct
29	Correct	177 ms	40272 KB	Output is correct
30	Correct	196 ms	43220 KB	Output is correct
31	Correct	193 ms	42504 KB	Output is correct

Subtask #6
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	158 ms	35380 KB	Output is correct
4	Correct	159 ms	35408 KB	Output is correct
5	Correct	177 ms	35408 KB	Output is correct

Subtask #7
26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	10844 KB	Output is correct
2	Correct	2 ms	10844 KB	Output is correct
3	Correct	2 ms	10844 KB	Output is correct
4	Correct	2 ms	11100 KB	Output is correct
5	Correct	2 ms	10840 KB	Output is correct
6	Correct	2 ms	10964 KB	Output is correct
7	Correct	2 ms	10844 KB	Output is correct
8	Correct	2 ms	10840 KB	Output is correct
9	Correct	2 ms	10840 KB	Output is correct
10	Correct	2 ms	11096 KB	Output is correct
11	Correct	2 ms	10844 KB	Output is correct
12	Correct	2 ms	10960 KB	Output is correct
13	Correct	2 ms	10844 KB	Output is correct
14	Correct	3 ms	11100 KB	Output is correct
15	Correct	2 ms	10844 KB	Output is correct
16	Correct	2 ms	10844 KB	Output is correct
17	Correct	2 ms	10844 KB	Output is correct
18	Correct	5 ms	11292 KB	Output is correct
19	Correct	5 ms	11356 KB	Output is correct
20	Correct	4 ms	11356 KB	Output is correct
21	Correct	5 ms	11356 KB	Output is correct
22	Correct	4 ms	11356 KB	Output is correct
23	Correct	4 ms	11356 KB	Output is correct
24	Correct	4 ms	11356 KB	Output is correct
25	Correct	2 ms	10844 KB	Output is correct
26	Correct	4 ms	11180 KB	Output is correct
27	Correct	5 ms	11328 KB	Output is correct
28	Correct	4 ms	11356 KB	Output is correct
29	Correct	4 ms	11356 KB	Output is correct
30	Correct	4 ms	11096 KB	Output is correct
31	Correct	5 ms	11228 KB	Output is correct
32	Correct	5 ms	11100 KB	Output is correct
33	Correct	4 ms	11352 KB	Output is correct
34	Correct	121 ms	40016 KB	Output is correct
35	Correct	120 ms	44628 KB	Output is correct
36	Correct	105 ms	44600 KB	Output is correct
37	Correct	182 ms	44396 KB	Output is correct
38	Correct	177 ms	40272 KB	Output is correct
39	Correct	196 ms	43220 KB	Output is correct
40	Correct	193 ms	42504 KB	Output is correct
41	Correct	2 ms	10844 KB	Output is correct
42	Correct	2 ms	10844 KB	Output is correct
43	Correct	158 ms	35380 KB	Output is correct
44	Correct	159 ms	35408 KB	Output is correct
45	Correct	177 ms	35408 KB	Output is correct
46	Correct	142 ms	41960 KB	Output is correct
47	Correct	128 ms	42108 KB	Output is correct
48	Correct	127 ms	42064 KB	Output is correct
49	Correct	131 ms	42064 KB	Output is correct
50	Correct	210 ms	35460 KB	Output is correct
51	Correct	180 ms	35428 KB	Output is correct
52	Correct	185 ms	35632 KB	Output is correct
53	Correct	236 ms	35412 KB	Output is correct

답안 #929149

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 7.0 / 7.0

Subtask #3 7.0 / 7.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 23.0 / 23.0

Subtask #7 26.0 / 26.0

Subtask #1
7.0 / 7.0

Subtask #2
7.0 / 7.0

Subtask #3
7.0 / 7.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
23.0 / 23.0

Subtask #7
26.0 / 26.0