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답안 #1116869

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1116869 2024-11-22T13:44:50 Z vjudge1 Mergers (JOI19_mergers) C++17
48 / 100
 414 ms 262144 KB 
#include <bits/stdc++.h>
#define int long long int

using namespace std;

const int maxn = 1e5 + 100;

int n ,k, a[maxn], num[maxn], sz[maxn], cnt[maxn] ,ans;
bool mark[maxn];

vector<int> adj[maxn];
vector<int> states[maxn];

void dfs1(int v, int mpar = 0){
    sz[v] = 1;
    states[v][a[v]] = true;
    for(auto u : adj[v]){
        if(u != mpar){
            dfs1(u, v);
            sz[v] += sz[u];
            cnt[v] += cnt[u];
            for(int i = 1; i <= k; i++){
                states[v][i] |= states[u][i];
            }
        }
    }
    int tedad = 0;
    for(int i = 1; i <= k ;i ++){
        if(states[v][i]){
            tedad += num[i];
        }
    }
    if((v != 1) and (tedad == sz[v])){
        mark[v] = true;
        cnt[v]++;
    }
}


void dfs2(int v ,int mpar = 0){
    if(mark[v]){
        if(cnt[v] == 1 or cnt[v] == cnt[1]){
            ans++;
        }
    }
    for(auto u : adj[v]){
        if(u != mpar){
            dfs2(u ,v);
        }
    }
}


int32_t main(){

    ios::sync_with_stdio(0) ,cout.tie(0) ,cin.tie(0);

    cin >> n >> k;
    for(int i = 0 ;i < n - 1 ;i++){
        int x ,y;
        cin >> x >> y;
        adj[x].push_back(y);
        adj[y].push_back(x);
    }
    for(int i = 1; i <= n; i++){
        cin >> a[i];
        num[a[i]]++;
    }

    for(int i = 1 ;i <= n; i++){
        states[i] = vector<int> (k + 100, 0);
    }

    dfs1(1), dfs2(1);

    cout << (ans + 1) / 2 << endl;

    system("pause");

    return 0;
}

Compilation message

mergers.cpp: In function 'int32_t main()':
mergers.cpp:78:11: warning: ignoring return value of 'int system(const char*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   78 |     system("pause");
      |     ~~~~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6736 KB Output is correct
2 Correct 2 ms 6736 KB Output is correct
3 Correct 3 ms 6736 KB Output is correct
4 Correct 2 ms 6736 KB Output is correct
5 Correct 2 ms 6736 KB Output is correct
6 Correct 2 ms 6736 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6736 KB Output is correct
9 Correct 2 ms 6736 KB Output is correct
10 Correct 2 ms 6736 KB Output is correct
11 Correct 2 ms 6736 KB Output is correct
12 Correct 2 ms 6736 KB Output is correct
13 Correct 2 ms 6736 KB Output is correct
14 Correct 2 ms 6736 KB Output is correct
15 Correct 2 ms 6904 KB Output is correct
16 Correct 2 ms 6736 KB Output is correct
17 Correct 2 ms 6736 KB Output is correct
18 Correct 2 ms 6736 KB Output is correct
19 Correct 2 ms 6736 KB Output is correct
20 Correct 2 ms 6736 KB Output is correct
21 Correct 2 ms 6736 KB Output is correct
22 Correct 2 ms 6904 KB Output is correct
23 Correct 2 ms 6904 KB Output is correct
24 Correct 2 ms 6736 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6736 KB Output is correct
2 Correct 2 ms 6736 KB Output is correct
3 Correct 3 ms 6736 KB Output is correct
4 Correct 2 ms 6736 KB Output is correct
5 Correct 2 ms 6736 KB Output is correct
6 Correct 2 ms 6736 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6736 KB Output is correct
9 Correct 2 ms 6736 KB Output is correct
10 Correct 2 ms 6736 KB Output is correct
11 Correct 2 ms 6736 KB Output is correct
12 Correct 2 ms 6736 KB Output is correct
13 Correct 2 ms 6736 KB Output is correct
14 Correct 2 ms 6736 KB Output is correct
15 Correct 2 ms 6904 KB Output is correct
16 Correct 2 ms 6736 KB Output is correct
17 Correct 2 ms 6736 KB Output is correct
18 Correct 2 ms 6736 KB Output is correct
19 Correct 2 ms 6736 KB Output is correct
20 Correct 2 ms 6736 KB Output is correct
21 Correct 2 ms 6736 KB Output is correct
22 Correct 2 ms 6904 KB Output is correct
23 Correct 2 ms 6904 KB Output is correct
24 Correct 2 ms 6736 KB Output is correct
25 Correct 2 ms 6904 KB Output is correct
26 Correct 61 ms 56144 KB Output is correct
27 Correct 10 ms 10388 KB Output is correct
28 Correct 95 ms 79760 KB Output is correct
29 Correct 87 ms 79616 KB Output is correct
30 Correct 17 ms 13904 KB Output is correct
31 Correct 2 ms 6904 KB Output is correct
32 Correct 89 ms 79900 KB Output is correct
33 Correct 2 ms 6736 KB Output is correct
34 Correct 13 ms 10392 KB Output is correct
35 Correct 82 ms 79680 KB Output is correct
36 Correct 10 ms 10320 KB Output is correct
37 Correct 50 ms 44588 KB Output is correct
38 Correct 2 ms 6904 KB Output is correct
39 Correct 56 ms 44368 KB Output is correct
40 Correct 4 ms 9296 KB Output is correct
41 Correct 4 ms 9552 KB Output is correct
42 Correct 52 ms 44368 KB Output is correct
43 Correct 4 ms 9552 KB Output is correct
44 Correct 3 ms 6992 KB Output is correct
45 Correct 88 ms 77384 KB Output is correct
46 Correct 70 ms 43740 KB Output is correct
47 Correct 2 ms 6736 KB Output is correct
48 Correct 42 ms 23432 KB Output is correct
49 Correct 87 ms 79720 KB Output is correct
50 Correct 85 ms 79944 KB Output is correct
51 Correct 33 ms 23376 KB Output is correct
52 Correct 10 ms 10320 KB Output is correct
53 Correct 51 ms 44448 KB Output is correct
54 Correct 11 ms 10320 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6736 KB Output is correct
2 Correct 2 ms 6736 KB Output is correct
3 Correct 3 ms 6736 KB Output is correct
4 Correct 2 ms 6736 KB Output is correct
5 Correct 2 ms 6736 KB Output is correct
6 Correct 2 ms 6736 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6736 KB Output is correct
9 Correct 2 ms 6736 KB Output is correct
10 Correct 2 ms 6736 KB Output is correct
11 Correct 2 ms 6736 KB Output is correct
12 Correct 2 ms 6736 KB Output is correct
13 Correct 2 ms 6736 KB Output is correct
14 Correct 2 ms 6736 KB Output is correct
15 Correct 2 ms 6904 KB Output is correct
16 Correct 2 ms 6736 KB Output is correct
17 Correct 2 ms 6736 KB Output is correct
18 Correct 2 ms 6736 KB Output is correct
19 Correct 2 ms 6736 KB Output is correct
20 Correct 2 ms 6736 KB Output is correct
21 Correct 2 ms 6736 KB Output is correct
22 Correct 2 ms 6904 KB Output is correct
23 Correct 2 ms 6904 KB Output is correct
24 Correct 2 ms 6736 KB Output is correct
25 Correct 2 ms 6736 KB Output is correct
26 Correct 157 ms 130496 KB Output is correct
27 Correct 367 ms 130128 KB Output is correct
28 Correct 11 ms 10576 KB Output is correct
29 Correct 2 ms 6736 KB Output is correct
30 Correct 2 ms 6832 KB Output is correct
31 Correct 362 ms 130296 KB Output is correct
32 Correct 10 ms 10320 KB Output is correct
33 Correct 414 ms 136776 KB Output is correct
34 Correct 342 ms 131016 KB Output is correct
35 Correct 10 ms 10488 KB Output is correct
36 Correct 350 ms 130376 KB Output is correct
37 Correct 5 ms 9296 KB Output is correct
38 Correct 5 ms 9552 KB Output is correct
39 Correct 145 ms 130360 KB Output is correct
40 Correct 5 ms 9552 KB Output is correct
41 Correct 104 ms 91208 KB Output is correct
42 Correct 393 ms 133084 KB Output is correct
43 Correct 2 ms 6736 KB Output is correct
44 Correct 109 ms 98012 KB Output is correct
45 Correct 398 ms 134628 KB Output is correct
46 Correct 12 ms 10320 KB Output is correct
47 Correct 11 ms 10320 KB Output is correct

Subtask #4
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 142 ms 130488 KB Output is correct
2 Runtime error 209 ms 262144 KB Execution killed with signal 9
3 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 6736 KB Output is correct
2 Correct 2 ms 6736 KB Output is correct
3 Correct 3 ms 6736 KB Output is correct
4 Correct 2 ms 6736 KB Output is correct
5 Correct 2 ms 6736 KB Output is correct
6 Correct 2 ms 6736 KB Output is correct
7 Correct 2 ms 6736 KB Output is correct
8 Correct 2 ms 6736 KB Output is correct
9 Correct 2 ms 6736 KB Output is correct
10 Correct 2 ms 6736 KB Output is correct
11 Correct 2 ms 6736 KB Output is correct
12 Correct 2 ms 6736 KB Output is correct
13 Correct 2 ms 6736 KB Output is correct
14 Correct 2 ms 6736 KB Output is correct
15 Correct 2 ms 6904 KB Output is correct
16 Correct 2 ms 6736 KB Output is correct
17 Correct 2 ms 6736 KB Output is correct
18 Correct 2 ms 6736 KB Output is correct
19 Correct 2 ms 6736 KB Output is correct
20 Correct 2 ms 6736 KB Output is correct
21 Correct 2 ms 6736 KB Output is correct
22 Correct 2 ms 6904 KB Output is correct
23 Correct 2 ms 6904 KB Output is correct
24 Correct 2 ms 6736 KB Output is correct
25 Correct 2 ms 6904 KB Output is correct
26 Correct 61 ms 56144 KB Output is correct
27 Correct 10 ms 10388 KB Output is correct
28 Correct 95 ms 79760 KB Output is correct
29 Correct 87 ms 79616 KB Output is correct
30 Correct 17 ms 13904 KB Output is correct
31 Correct 2 ms 6904 KB Output is correct
32 Correct 89 ms 79900 KB Output is correct
33 Correct 2 ms 6736 KB Output is correct
34 Correct 13 ms 10392 KB Output is correct
35 Correct 82 ms 79680 KB Output is correct
36 Correct 10 ms 10320 KB Output is correct
37 Correct 50 ms 44588 KB Output is correct
38 Correct 2 ms 6904 KB Output is correct
39 Correct 56 ms 44368 KB Output is correct
40 Correct 4 ms 9296 KB Output is correct
41 Correct 4 ms 9552 KB Output is correct
42 Correct 52 ms 44368 KB Output is correct
43 Correct 4 ms 9552 KB Output is correct
44 Correct 3 ms 6992 KB Output is correct
45 Correct 88 ms 77384 KB Output is correct
46 Correct 70 ms 43740 KB Output is correct
47 Correct 2 ms 6736 KB Output is correct
48 Correct 42 ms 23432 KB Output is correct
49 Correct 87 ms 79720 KB Output is correct
50 Correct 85 ms 79944 KB Output is correct
51 Correct 33 ms 23376 KB Output is correct
52 Correct 10 ms 10320 KB Output is correct
53 Correct 51 ms 44448 KB Output is correct
54 Correct 11 ms 10320 KB Output is correct
55 Correct 2 ms 6736 KB Output is correct
56 Correct 157 ms 130496 KB Output is correct
57 Correct 367 ms 130128 KB Output is correct
58 Correct 11 ms 10576 KB Output is correct
59 Correct 2 ms 6736 KB Output is correct
60 Correct 2 ms 6832 KB Output is correct
61 Correct 362 ms 130296 KB Output is correct
62 Correct 10 ms 10320 KB Output is correct
63 Correct 414 ms 136776 KB Output is correct
64 Correct 342 ms 131016 KB Output is correct
65 Correct 10 ms 10488 KB Output is correct
66 Correct 350 ms 130376 KB Output is correct
67 Correct 5 ms 9296 KB Output is correct
68 Correct 5 ms 9552 KB Output is correct
69 Correct 145 ms 130360 KB Output is correct
70 Correct 5 ms 9552 KB Output is correct
71 Correct 104 ms 91208 KB Output is correct
72 Correct 393 ms 133084 KB Output is correct
73 Correct 2 ms 6736 KB Output is correct
74 Correct 109 ms 98012 KB Output is correct
75 Correct 398 ms 134628 KB Output is correct
76 Correct 12 ms 10320 KB Output is correct
77 Correct 11 ms 10320 KB Output is correct
78 Correct 142 ms 130488 KB Output is correct
79 Runtime error 209 ms 262144 KB Execution killed with signal 9
80 Halted 0 ms 0 KB -