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Submission #927777

# Submission time Handle Problem Language Result Execution time Memory
927777 2024-02-15T10:28:17 Z Amirreza_Fakhri Railway (BOI17_railway) C++17
100 / 100
 196 ms 41812 KB 
// In the name of the God
#include <bits/stdc++.h>
#define ll long long
// #define int long long
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define pii pair <int, int>
#define smin(x, y) (x) = min((x), (y))
#define smax(x, y) (x) = max((x), (y))
#define all(x) (x).begin(), (x).end()
using namespace std;

const int inf = 1e9+7;
const int mod = 998244353;
const int maxn = 1e5+5;

int n, m, k, s[maxn], res[maxn], sz[maxn];
vector <pii> adj[maxn];
vector <int> col[maxn], ans;
map <int, int> cnt[maxn];

void relax(int v, int c, int x) {
    if (cnt[v][c] == 0) res[v]++;
    cnt[v][c] += x;
    if (cnt[v][c] == s[c]) res[v]--;
}

void dfs(int v, int p, int ed) {
    for (int c : col[v]) relax(v, c, 1);
    sz[v] = col[v].size();
    for (pii e : adj[v]) {
        int u = e.F;
        if (u == p) continue;
        dfs(u, v, e.S);
        if (sz[u] > sz[v]) {
            res[v] = res[u];
            swap(cnt[v], cnt[u]);
        }
        for (auto it = cnt[u].begin(); it != cnt[u].end(); it++) relax(v, it->F, it->S);
        sz[v] += sz[u];
    }
    if (res[v] >= k) ans.pb(ed);
}  

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n >> m >> k;
    for (int i = 1; i < n; i++) {
        int v, u; cin >> v >> u;
        adj[--v].pb(mp(--u, i));
        adj[u].pb(mp(v, i));
    }
    for (int i = 0; i < m; i++) {
        cin >> s[i];
        for (int j = 0; j < s[i]; j++) {
            int v; cin >> v;
            col[--v].pb(i);
        }
    }
    dfs(0, 0, 0);
    sort(all(ans));
    cout << ans.size() << '\n';
    for (int i : ans) cout << i << ' ';
    cout << '\n';
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10848 KB Output is correct
2 Correct 6 ms 11356 KB Output is correct
3 Correct 6 ms 11356 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10840 KB Output is correct
6 Correct 6 ms 12124 KB Output is correct
7 Correct 5 ms 11612 KB Output is correct
8 Correct 6 ms 11612 KB Output is correct
9 Correct 7 ms 11612 KB Output is correct
10 Correct 3 ms 10844 KB Output is correct
11 Correct 2 ms 11096 KB Output is correct
12 Correct 3 ms 10896 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 3 ms 10844 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10848 KB Output is correct
2 Correct 6 ms 11356 KB Output is correct
3 Correct 6 ms 11356 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10840 KB Output is correct
6 Correct 6 ms 12124 KB Output is correct
7 Correct 5 ms 11612 KB Output is correct
8 Correct 6 ms 11612 KB Output is correct
9 Correct 7 ms 11612 KB Output is correct
10 Correct 3 ms 10844 KB Output is correct
11 Correct 2 ms 11096 KB Output is correct
12 Correct 3 ms 10896 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 3 ms 10844 KB Output is correct
15 Correct 39 ms 17744 KB Output is correct
16 Correct 38 ms 17744 KB Output is correct
17 Correct 49 ms 18000 KB Output is correct
18 Correct 9 ms 12120 KB Output is correct
19 Correct 6 ms 11608 KB Output is correct
20 Correct 40 ms 17276 KB Output is correct
21 Correct 39 ms 17192 KB Output is correct
22 Correct 3 ms 10840 KB Output is correct
23 Correct 7 ms 11352 KB Output is correct
24 Correct 6 ms 11356 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 3 ms 10840 KB Output is correct
27 Correct 6 ms 12376 KB Output is correct
28 Correct 7 ms 11668 KB Output is correct
29 Correct 7 ms 11608 KB Output is correct
30 Correct 6 ms 11612 KB Output is correct
31 Correct 2 ms 10844 KB Output is correct
32 Correct 2 ms 10844 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 3 ms 10844 KB Output is correct
35 Correct 3 ms 10844 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 125 ms 38060 KB Output is correct
2 Correct 3 ms 10844 KB Output is correct
3 Correct 100 ms 37620 KB Output is correct
4 Correct 108 ms 37200 KB Output is correct
5 Correct 81 ms 36024 KB Output is correct
6 Correct 91 ms 38316 KB Output is correct

Subtask #4
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 30604 KB Output is correct
2 Correct 104 ms 27844 KB Output is correct
3 Correct 132 ms 32592 KB Output is correct
4 Correct 130 ms 32524 KB Output is correct
5 Correct 160 ms 32852 KB Output is correct
6 Correct 92 ms 30740 KB Output is correct
7 Correct 88 ms 30408 KB Output is correct

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 93 ms 30604 KB Output is correct
2 Correct 104 ms 27844 KB Output is correct
3 Correct 132 ms 32592 KB Output is correct
4 Correct 130 ms 32524 KB Output is correct
5 Correct 160 ms 32852 KB Output is correct
6 Correct 92 ms 30740 KB Output is correct
7 Correct 88 ms 30408 KB Output is correct
8 Correct 86 ms 30544 KB Output is correct
9 Correct 81 ms 30420 KB Output is correct
10 Correct 71 ms 35784 KB Output is correct
11 Correct 74 ms 35716 KB Output is correct
12 Correct 54 ms 22804 KB Output is correct
13 Correct 52 ms 22868 KB Output is correct
14 Correct 107 ms 27620 KB Output is correct
15 Correct 99 ms 27708 KB Output is correct
16 Correct 140 ms 33492 KB Output is correct
17 Correct 137 ms 33712 KB Output is correct
18 Correct 121 ms 31572 KB Output is correct
19 Correct 118 ms 28872 KB Output is correct
20 Correct 91 ms 30720 KB Output is correct
21 Correct 91 ms 30996 KB Output is correct
22 Correct 92 ms 31060 KB Output is correct

Subtask #6
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 10848 KB Output is correct
2 Correct 6 ms 11356 KB Output is correct
3 Correct 6 ms 11356 KB Output is correct
4 Correct 2 ms 10844 KB Output is correct
5 Correct 2 ms 10840 KB Output is correct
6 Correct 6 ms 12124 KB Output is correct
7 Correct 5 ms 11612 KB Output is correct
8 Correct 6 ms 11612 KB Output is correct
9 Correct 7 ms 11612 KB Output is correct
10 Correct 3 ms 10844 KB Output is correct
11 Correct 2 ms 11096 KB Output is correct
12 Correct 3 ms 10896 KB Output is correct
13 Correct 2 ms 10844 KB Output is correct
14 Correct 3 ms 10844 KB Output is correct
15 Correct 39 ms 17744 KB Output is correct
16 Correct 38 ms 17744 KB Output is correct
17 Correct 49 ms 18000 KB Output is correct
18 Correct 9 ms 12120 KB Output is correct
19 Correct 6 ms 11608 KB Output is correct
20 Correct 40 ms 17276 KB Output is correct
21 Correct 39 ms 17192 KB Output is correct
22 Correct 3 ms 10840 KB Output is correct
23 Correct 7 ms 11352 KB Output is correct
24 Correct 6 ms 11356 KB Output is correct
25 Correct 2 ms 10844 KB Output is correct
26 Correct 3 ms 10840 KB Output is correct
27 Correct 6 ms 12376 KB Output is correct
28 Correct 7 ms 11668 KB Output is correct
29 Correct 7 ms 11608 KB Output is correct
30 Correct 6 ms 11612 KB Output is correct
31 Correct 2 ms 10844 KB Output is correct
32 Correct 2 ms 10844 KB Output is correct
33 Correct 2 ms 10840 KB Output is correct
34 Correct 3 ms 10844 KB Output is correct
35 Correct 3 ms 10844 KB Output is correct
36 Correct 125 ms 38060 KB Output is correct
37 Correct 3 ms 10844 KB Output is correct
38 Correct 100 ms 37620 KB Output is correct
39 Correct 108 ms 37200 KB Output is correct
40 Correct 81 ms 36024 KB Output is correct
41 Correct 91 ms 38316 KB Output is correct
42 Correct 93 ms 30604 KB Output is correct
43 Correct 104 ms 27844 KB Output is correct
44 Correct 132 ms 32592 KB Output is correct
45 Correct 130 ms 32524 KB Output is correct
46 Correct 160 ms 32852 KB Output is correct
47 Correct 92 ms 30740 KB Output is correct
48 Correct 88 ms 30408 KB Output is correct
49 Correct 86 ms 30544 KB Output is correct
50 Correct 81 ms 30420 KB Output is correct
51 Correct 71 ms 35784 KB Output is correct
52 Correct 74 ms 35716 KB Output is correct
53 Correct 54 ms 22804 KB Output is correct
54 Correct 52 ms 22868 KB Output is correct
55 Correct 107 ms 27620 KB Output is correct
56 Correct 99 ms 27708 KB Output is correct
57 Correct 140 ms 33492 KB Output is correct
58 Correct 137 ms 33712 KB Output is correct
59 Correct 121 ms 31572 KB Output is correct
60 Correct 118 ms 28872 KB Output is correct
61 Correct 91 ms 30720 KB Output is correct
62 Correct 91 ms 30996 KB Output is correct
63 Correct 92 ms 31060 KB Output is correct
64 Correct 89 ms 31268 KB Output is correct
65 Correct 196 ms 41812 KB Output is correct
66 Correct 149 ms 36172 KB Output is correct
67 Correct 116 ms 31636 KB Output is correct
68 Correct 46 ms 20564 KB Output is correct
69 Correct 46 ms 20544 KB Output is correct
70 Correct 100 ms 32064 KB Output is correct
71 Correct 83 ms 30360 KB Output is correct
72 Correct 2 ms 10840 KB Output is correct
73 Correct 6 ms 11352 KB Output is correct
74 Correct 5 ms 11608 KB Output is correct
75 Correct 2 ms 10892 KB Output is correct
76 Correct 3 ms 10840 KB Output is correct
77 Correct 7 ms 12124 KB Output is correct
78 Correct 5 ms 11608 KB Output is correct
79 Correct 7 ms 11612 KB Output is correct
80 Correct 5 ms 11612 KB Output is correct
81 Correct 2 ms 10860 KB Output is correct
82 Correct 3 ms 10844 KB Output is correct
83 Correct 2 ms 10844 KB Output is correct
84 Correct 2 ms 10892 KB Output is correct
85 Correct 2 ms 10840 KB Output is correct
86 Correct 37 ms 17704 KB Output is correct
87 Correct 38 ms 17772 KB Output is correct
88 Correct 37 ms 17940 KB Output is correct
89 Correct 7 ms 12120 KB Output is correct
90 Correct 5 ms 11608 KB Output is correct
91 Correct 38 ms 17244 KB Output is correct
92 Correct 37 ms 17232 KB Output is correct
93 Correct 2 ms 10844 KB Output is correct
94 Correct 116 ms 38000 KB Output is correct
95 Correct 100 ms 37584 KB Output is correct
96 Correct 100 ms 37460 KB Output is correct
97 Correct 81 ms 36012 KB Output is correct
98 Correct 90 ms 38412 KB Output is correct
99 Correct 145 ms 35920 KB Output is correct
100 Correct 148 ms 33208 KB Output is correct
101 Correct 136 ms 33712 KB Output is correct
102 Correct 104 ms 28344 KB Output is correct
103 Correct 88 ms 30544 KB Output is correct
104 Correct 95 ms 31056 KB Output is correct
105 Correct 89 ms 30568 KB Output is correct
106 Correct 83 ms 30444 KB Output is correct
107 Correct 86 ms 30292 KB Output is correct
108 Correct 72 ms 35784 KB Output is correct
109 Correct 72 ms 35788 KB Output is correct
110 Correct 61 ms 22868 KB Output is correct
111 Correct 50 ms 22864 KB Output is correct
112 Correct 98 ms 27272 KB Output is correct
113 Correct 100 ms 27476 KB Output is correct