oj.uz

답안 #242740

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
242740 2020-06-29T08:12:02 Z Autoratch Mergers (JOI19_mergers) C++14
100 / 100
 1464 ms 72312 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 5e5 + 1;

int n,k,all,lwsep;
vector<int> adj[N];
int res[N],sz[N],am[N],now[N];
bool big[N],sep[N],warn;
int allt,fult;
int sepsub[N];

void pre(int u,int p){ sz[u] = 1; for(int v : adj[u]) if(v!=p) pre(v,u),sz[u]+=sz[v]; }

void add(int u,int p,int x)
{
    if(now[res[u]]==am[res[u]]) fult--;
    if(now[res[u]]==0) allt++;
    now[res[u]]+=x;
    if(now[res[u]]==am[res[u]]) fult++;
    if(now[res[u]]==0) allt--;
    for(int v : adj[u]) if(v!=p and !big[v]) add(v,u,x);
}

void dfs(int u,int p,bool k)
{
    int mx = 0,bc = -1;
    for(int v : adj[u]) if(v!=p) if(sz[v]>mx) mx = sz[v],bc = v;
    for(int v : adj[u]) if(v!=p) if(v!=bc) dfs(v,u,0);
    if(bc!=-1) dfs(bc,u,1),big[bc] = 1;
    add(u,p,1);
    sep[u] = (allt==fult);
    if(sep[u] and u>1) all++;
    if(bc!=-1) big[bc] = 0;
    if(!k) add(u,p,-1);
}

void pres(int u,int p)
{ 
    sepsub[u] = sep[u]; 
    for(int v : adj[u]) if(v!=p) pres(v,u),sepsub[u]+=sepsub[v]; 
    if(sepsub[u]==all and sep[u]) warn = true;
    if(sepsub[u]==1 and sep[u] and u!=1) lwsep++;
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);

    cin >> n >> k;
    for(int i = 1;i < n;i++)
    {
        int a,b;
        cin >> a >> b;
        adj[a].push_back(b);
        adj[b].push_back(a);
    }
    for(int i = 1;i <= n;i++) cin >> res[i],am[res[i]]++;
    pre(1,0);
    dfs(1,0,1);
    pres(1,0);
    if(!warn) cout << (lwsep+1)/2;
    else if(lwsep%2==1) cout << (lwsep+1)/2;
    else cout << lwsep/2+1;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 12160 KB Output is correct
2 Correct 12 ms 12160 KB Output is correct
3 Correct 12 ms 12160 KB Output is correct
4 Correct 12 ms 12160 KB Output is correct
5 Correct 13 ms 12160 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 12 ms 12160 KB Output is correct
8 Correct 15 ms 12160 KB Output is correct
9 Correct 12 ms 12160 KB Output is correct
10 Correct 12 ms 12160 KB Output is correct
11 Correct 12 ms 12160 KB Output is correct
12 Correct 12 ms 12160 KB Output is correct
13 Correct 11 ms 12160 KB Output is correct
14 Correct 15 ms 12160 KB Output is correct
15 Correct 15 ms 12160 KB Output is correct
16 Correct 15 ms 12160 KB Output is correct
17 Correct 12 ms 12160 KB Output is correct
18 Correct 12 ms 12160 KB Output is correct
19 Correct 12 ms 12160 KB Output is correct
20 Correct 11 ms 12160 KB Output is correct
21 Correct 12 ms 12160 KB Output is correct
22 Correct 12 ms 12160 KB Output is correct
23 Correct 12 ms 12160 KB Output is correct
24 Correct 12 ms 12160 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 12160 KB Output is correct
2 Correct 12 ms 12160 KB Output is correct
3 Correct 12 ms 12160 KB Output is correct
4 Correct 12 ms 12160 KB Output is correct
5 Correct 13 ms 12160 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 12 ms 12160 KB Output is correct
8 Correct 15 ms 12160 KB Output is correct
9 Correct 12 ms 12160 KB Output is correct
10 Correct 12 ms 12160 KB Output is correct
11 Correct 12 ms 12160 KB Output is correct
12 Correct 12 ms 12160 KB Output is correct
13 Correct 11 ms 12160 KB Output is correct
14 Correct 15 ms 12160 KB Output is correct
15 Correct 15 ms 12160 KB Output is correct
16 Correct 15 ms 12160 KB Output is correct
17 Correct 12 ms 12160 KB Output is correct
18 Correct 12 ms 12160 KB Output is correct
19 Correct 12 ms 12160 KB Output is correct
20 Correct 11 ms 12160 KB Output is correct
21 Correct 12 ms 12160 KB Output is correct
22 Correct 12 ms 12160 KB Output is correct
23 Correct 12 ms 12160 KB Output is correct
24 Correct 12 ms 12160 KB Output is correct
25 Correct 12 ms 12160 KB Output is correct
26 Correct 14 ms 12288 KB Output is correct
27 Correct 14 ms 12288 KB Output is correct
28 Correct 14 ms 12416 KB Output is correct
29 Correct 14 ms 12288 KB Output is correct
30 Correct 14 ms 12288 KB Output is correct
31 Correct 11 ms 12160 KB Output is correct
32 Correct 13 ms 12544 KB Output is correct
33 Correct 13 ms 12160 KB Output is correct
34 Correct 13 ms 12288 KB Output is correct
35 Correct 14 ms 12288 KB Output is correct
36 Correct 14 ms 12288 KB Output is correct
37 Correct 14 ms 12288 KB Output is correct
38 Correct 12 ms 12160 KB Output is correct
39 Correct 14 ms 12288 KB Output is correct
40 Correct 14 ms 12288 KB Output is correct
41 Correct 14 ms 12288 KB Output is correct
42 Correct 13 ms 12288 KB Output is correct
43 Correct 13 ms 12544 KB Output is correct
44 Correct 12 ms 12160 KB Output is correct
45 Correct 13 ms 12416 KB Output is correct
46 Correct 14 ms 12288 KB Output is correct
47 Correct 12 ms 12160 KB Output is correct
48 Correct 13 ms 12288 KB Output is correct
49 Correct 13 ms 12288 KB Output is correct
50 Correct 14 ms 12416 KB Output is correct
51 Correct 14 ms 12288 KB Output is correct
52 Correct 13 ms 12288 KB Output is correct
53 Correct 13 ms 12288 KB Output is correct
54 Correct 14 ms 12288 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 12160 KB Output is correct
2 Correct 12 ms 12160 KB Output is correct
3 Correct 12 ms 12160 KB Output is correct
4 Correct 12 ms 12160 KB Output is correct
5 Correct 13 ms 12160 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 12 ms 12160 KB Output is correct
8 Correct 15 ms 12160 KB Output is correct
9 Correct 12 ms 12160 KB Output is correct
10 Correct 12 ms 12160 KB Output is correct
11 Correct 12 ms 12160 KB Output is correct
12 Correct 12 ms 12160 KB Output is correct
13 Correct 11 ms 12160 KB Output is correct
14 Correct 15 ms 12160 KB Output is correct
15 Correct 15 ms 12160 KB Output is correct
16 Correct 15 ms 12160 KB Output is correct
17 Correct 12 ms 12160 KB Output is correct
18 Correct 12 ms 12160 KB Output is correct
19 Correct 12 ms 12160 KB Output is correct
20 Correct 11 ms 12160 KB Output is correct
21 Correct 12 ms 12160 KB Output is correct
22 Correct 12 ms 12160 KB Output is correct
23 Correct 12 ms 12160 KB Output is correct
24 Correct 12 ms 12160 KB Output is correct
25 Correct 14 ms 12160 KB Output is correct
26 Correct 66 ms 18412 KB Output is correct
27 Correct 123 ms 18172 KB Output is correct
28 Correct 13 ms 12296 KB Output is correct
29 Correct 11 ms 12160 KB Output is correct
30 Correct 12 ms 12160 KB Output is correct
31 Correct 134 ms 18168 KB Output is correct
32 Correct 13 ms 12288 KB Output is correct
33 Correct 128 ms 25336 KB Output is correct
34 Correct 125 ms 18172 KB Output is correct
35 Correct 13 ms 12288 KB Output is correct
36 Correct 129 ms 18940 KB Output is correct
37 Correct 13 ms 12288 KB Output is correct
38 Correct 14 ms 12288 KB Output is correct
39 Correct 63 ms 18288 KB Output is correct
40 Correct 13 ms 12544 KB Output is correct
41 Correct 125 ms 18040 KB Output is correct
42 Correct 134 ms 20472 KB Output is correct
43 Correct 13 ms 12160 KB Output is correct
44 Correct 126 ms 25592 KB Output is correct
45 Correct 104 ms 21880 KB Output is correct
46 Correct 15 ms 12288 KB Output is correct
47 Correct 14 ms 12288 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 63 ms 18288 KB Output is correct
2 Correct 70 ms 19416 KB Output is correct
3 Correct 15 ms 12288 KB Output is correct
4 Correct 13 ms 12288 KB Output is correct
5 Correct 12 ms 12160 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 13 ms 12288 KB Output is correct
8 Correct 139 ms 18872 KB Output is correct
9 Correct 13 ms 12288 KB Output is correct
10 Correct 126 ms 18424 KB Output is correct
11 Correct 12 ms 12160 KB Output is correct
12 Correct 139 ms 18168 KB Output is correct
13 Correct 146 ms 18808 KB Output is correct
14 Correct 139 ms 19248 KB Output is correct
15 Correct 62 ms 18304 KB Output is correct
16 Correct 13 ms 12160 KB Output is correct
17 Correct 12 ms 12160 KB Output is correct
18 Correct 74 ms 19308 KB Output is correct
19 Correct 170 ms 23160 KB Output is correct
20 Correct 15 ms 12264 KB Output is correct
21 Correct 12 ms 12160 KB Output is correct
22 Correct 68 ms 18928 KB Output is correct
23 Correct 14 ms 12288 KB Output is correct
24 Correct 144 ms 18296 KB Output is correct
25 Correct 138 ms 22008 KB Output is correct
26 Correct 13 ms 12288 KB Output is correct
27 Correct 14 ms 12416 KB Output is correct
28 Correct 14 ms 12288 KB Output is correct
29 Correct 13 ms 12288 KB Output is correct
30 Correct 13 ms 12288 KB Output is correct

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 12160 KB Output is correct
2 Correct 12 ms 12160 KB Output is correct
3 Correct 12 ms 12160 KB Output is correct
4 Correct 12 ms 12160 KB Output is correct
5 Correct 13 ms 12160 KB Output is correct
6 Correct 12 ms 12160 KB Output is correct
7 Correct 12 ms 12160 KB Output is correct
8 Correct 15 ms 12160 KB Output is correct
9 Correct 12 ms 12160 KB Output is correct
10 Correct 12 ms 12160 KB Output is correct
11 Correct 12 ms 12160 KB Output is correct
12 Correct 12 ms 12160 KB Output is correct
13 Correct 11 ms 12160 KB Output is correct
14 Correct 15 ms 12160 KB Output is correct
15 Correct 15 ms 12160 KB Output is correct
16 Correct 15 ms 12160 KB Output is correct
17 Correct 12 ms 12160 KB Output is correct
18 Correct 12 ms 12160 KB Output is correct
19 Correct 12 ms 12160 KB Output is correct
20 Correct 11 ms 12160 KB Output is correct
21 Correct 12 ms 12160 KB Output is correct
22 Correct 12 ms 12160 KB Output is correct
23 Correct 12 ms 12160 KB Output is correct
24 Correct 12 ms 12160 KB Output is correct
25 Correct 12 ms 12160 KB Output is correct
26 Correct 14 ms 12288 KB Output is correct
27 Correct 14 ms 12288 KB Output is correct
28 Correct 14 ms 12416 KB Output is correct
29 Correct 14 ms 12288 KB Output is correct
30 Correct 14 ms 12288 KB Output is correct
31 Correct 11 ms 12160 KB Output is correct
32 Correct 13 ms 12544 KB Output is correct
33 Correct 13 ms 12160 KB Output is correct
34 Correct 13 ms 12288 KB Output is correct
35 Correct 14 ms 12288 KB Output is correct
36 Correct 14 ms 12288 KB Output is correct
37 Correct 14 ms 12288 KB Output is correct
38 Correct 12 ms 12160 KB Output is correct
39 Correct 14 ms 12288 KB Output is correct
40 Correct 14 ms 12288 KB Output is correct
41 Correct 14 ms 12288 KB Output is correct
42 Correct 13 ms 12288 KB Output is correct
43 Correct 13 ms 12544 KB Output is correct
44 Correct 12 ms 12160 KB Output is correct
45 Correct 13 ms 12416 KB Output is correct
46 Correct 14 ms 12288 KB Output is correct
47 Correct 12 ms 12160 KB Output is correct
48 Correct 13 ms 12288 KB Output is correct
49 Correct 13 ms 12288 KB Output is correct
50 Correct 14 ms 12416 KB Output is correct
51 Correct 14 ms 12288 KB Output is correct
52 Correct 13 ms 12288 KB Output is correct
53 Correct 13 ms 12288 KB Output is correct
54 Correct 14 ms 12288 KB Output is correct
55 Correct 14 ms 12160 KB Output is correct
56 Correct 66 ms 18412 KB Output is correct
57 Correct 123 ms 18172 KB Output is correct
58 Correct 13 ms 12296 KB Output is correct
59 Correct 11 ms 12160 KB Output is correct
60 Correct 12 ms 12160 KB Output is correct
61 Correct 134 ms 18168 KB Output is correct
62 Correct 13 ms 12288 KB Output is correct
63 Correct 128 ms 25336 KB Output is correct
64 Correct 125 ms 18172 KB Output is correct
65 Correct 13 ms 12288 KB Output is correct
66 Correct 129 ms 18940 KB Output is correct
67 Correct 13 ms 12288 KB Output is correct
68 Correct 14 ms 12288 KB Output is correct
69 Correct 63 ms 18288 KB Output is correct
70 Correct 13 ms 12544 KB Output is correct
71 Correct 125 ms 18040 KB Output is correct
72 Correct 134 ms 20472 KB Output is correct
73 Correct 13 ms 12160 KB Output is correct
74 Correct 126 ms 25592 KB Output is correct
75 Correct 104 ms 21880 KB Output is correct
76 Correct 15 ms 12288 KB Output is correct
77 Correct 14 ms 12288 KB Output is correct
78 Correct 63 ms 18288 KB Output is correct
79 Correct 70 ms 19416 KB Output is correct
80 Correct 15 ms 12288 KB Output is correct
81 Correct 13 ms 12288 KB Output is correct
82 Correct 12 ms 12160 KB Output is correct
83 Correct 12 ms 12160 KB Output is correct
84 Correct 13 ms 12288 KB Output is correct
85 Correct 139 ms 18872 KB Output is correct
86 Correct 13 ms 12288 KB Output is correct
87 Correct 126 ms 18424 KB Output is correct
88 Correct 12 ms 12160 KB Output is correct
89 Correct 139 ms 18168 KB Output is correct
90 Correct 146 ms 18808 KB Output is correct
91 Correct 139 ms 19248 KB Output is correct
92 Correct 62 ms 18304 KB Output is correct
93 Correct 13 ms 12160 KB Output is correct
94 Correct 12 ms 12160 KB Output is correct
95 Correct 74 ms 19308 KB Output is correct
96 Correct 170 ms 23160 KB Output is correct
97 Correct 15 ms 12264 KB Output is correct
98 Correct 12 ms 12160 KB Output is correct
99 Correct 68 ms 18928 KB Output is correct
100 Correct 14 ms 12288 KB Output is correct
101 Correct 144 ms 18296 KB Output is correct
102 Correct 138 ms 22008 KB Output is correct
103 Correct 13 ms 12288 KB Output is correct
104 Correct 14 ms 12416 KB Output is correct
105 Correct 14 ms 12288 KB Output is correct
106 Correct 13 ms 12288 KB Output is correct
107 Correct 13 ms 12288 KB Output is correct
108 Correct 465 ms 47692 KB Output is correct
109 Correct 1157 ms 60924 KB Output is correct
110 Correct 993 ms 71928 KB Output is correct
111 Correct 1183 ms 72312 KB Output is correct
112 Correct 969 ms 62204 KB Output is correct
113 Correct 494 ms 49628 KB Output is correct
114 Correct 1070 ms 42872 KB Output is correct
115 Correct 1070 ms 42868 KB Output is correct
116 Correct 1192 ms 45400 KB Output is correct
117 Correct 1283 ms 49144 KB Output is correct
118 Correct 1078 ms 43004 KB Output is correct
119 Correct 1206 ms 49104 KB Output is correct
120 Correct 992 ms 63096 KB Output is correct
121 Correct 1172 ms 48996 KB Output is correct
122 Correct 1193 ms 47480 KB Output is correct
123 Correct 482 ms 50020 KB Output is correct
124 Correct 1464 ms 48120 KB Output is correct