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답안 #678999

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
678999 2023-01-07T07:24:04 Z jhwest2 Sprinkler (JOI22_sprinkler) C++17
100 / 100
 2990 ms 184572 KB 
#include <bits/stdc++.h>
using namespace std;

const int N = 202020;
const int M = 44;

int n, mod, q;
vector<int> g[N];

int sub[N], dep[N], gp[N], a[N];
bool dead[N];

void pre_dfs(int p, int v) {
    sub[v] = 1;
    for (int x : g[v]) {
        if (p == x || dead[x])
            continue;

        pre_dfs(v, x);
        sub[v] += sub[x];
    }
}
int find_centroid(int p, int v, int z) {
    for (int x : g[v]) {
        if (p == x || dead[x])
            continue;
        
        if (2 * sub[x] > z)
            return find_centroid(v, x, z);
    }
    return v;
}
void dfs(int p, int v, int z) {
    gp[v] = z;
    dep[v] = dep[p] + 1;
    for (int x : g[v]) {
        if (p == x || dead[x])
            continue;

        dfs(v, x, z);
    }
}
struct query {
    int t, x, d, w, i;
};
vector<query> qr[N];
int ans[2 * N];

struct fenwick {
    int tree[N];

    void init(int sz) {
        fill(tree, tree + sz + 1, 1);
    }
    void update(int a, int x) {
        for (; a < N; a += a & -a) 
            tree[a] = 1ll * tree[a] * x % mod;
    }
    int query(int a) {
        int res = 1;
        for (; a; a -= a & -a)
            res = 1ll * res * tree[a] % mod;
        return res;
    }
} t1[M], t2[M];

void solve(int v) {
    pre_dfs(v, v);
    int centroid = find_centroid(v, v, sub[v]);

    dep[centroid] = 0;
    for (int i = 0; i < g[centroid].size(); i++)
        if (!dead[g[centroid][i]]) 
            dfs(centroid, g[centroid][i], i);

    if (v != centroid) {
        qr[centroid] = qr[v];
        vector<query>().swap(qr[v]);
    }

    int sz = g[centroid].size();

    for (int i = 0; i < M; i++) {
        t1[i].init(sz);
        t2[i].init(sz);
    }

    vector<int> s(M, 1);
    for (auto [t, x, d, w, i] : qr[centroid]) {
        if (x != centroid)
            qr[g[centroid][gp[x]]].push_back({t, x, d, w, i});

        if (t == 1) {
            if (dep[x] > d)
                continue;
            if (x == centroid)
                s[d] = 1ll * s[d] * w % mod;
            else {
                t1[d - dep[x]].update(gp[x] + 1, w);
                t2[d - dep[x]].update(sz - gp[x], w);
            }
            // cout << v << ' ' << centroid << ' ' << x << ' ' << d - dep[x] << ' ' << gp[x] << ' ' << w << '\n';
        }
        else {
            for (int j = dep[x]; j < M; j++) {
                if (x == centroid)
                    ans[i] = 1ll * ans[i] * t1[j].query(sz) % mod;
                else {
                    if (gp[x]) 
                        ans[i] = 1ll * ans[i] * t1[j].query(gp[x]) % mod;
                    if (gp[x] != sz - 1) 
                        ans[i] = 1ll * ans[i] * t2[j].query(sz - gp[x] - 1) % mod;
                }
                ans[i] = 1ll * ans[i] * s[j] % mod;
            }
        }
    }
    dead[centroid] = 1;

    for (int i = 0; i < g[centroid].size(); i++)
        if (!dead[g[centroid][i]])
            solve(g[centroid][i]);
}
int main() {
    cin.tie(0); ios_base::sync_with_stdio(0);
    cin >> n >> mod;
    for (int i = 1; i < n; i++) {
        int u, v; cin >> u >> v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    for (int i = 1; i <= n; i++)
        cin >> a[i];

    cin >> q;
    int sz = 0;
    for (int i = 1; i <= q; i++) {
        int t; cin >> t;
        if (t == 1) {
            int x, d, w; cin >> x >> d >> w;
            qr[1].push_back({t, x, d, w, 0});
        }
        else {
            int x; cin >> x;
            qr[1].push_back({t, x, 0, 0, ++sz});
            ans[sz] = a[x] % mod;
        }
    }

    solve(1);

    for (int i = 1; i <= sz; i++)
        cout << ans[i] << '\n';

}

Compilation message

sprinkler.cpp: In function 'void solve(int)':
sprinkler.cpp:72:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |     for (int i = 0; i < g[centroid].size(); i++)
      |                     ~~^~~~~~~~~~~~~~~~~~~~
sprinkler.cpp:120:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |     for (int i = 0; i < g[centroid].size(); i++)
      |                     ~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10324 KB Output is correct
2 Correct 5 ms 10324 KB Output is correct
3 Correct 6 ms 10368 KB Output is correct
4 Correct 10 ms 13048 KB Output is correct
5 Correct 11 ms 13012 KB Output is correct
6 Correct 11 ms 13036 KB Output is correct
7 Correct 10 ms 13012 KB Output is correct
8 Correct 9 ms 13012 KB Output is correct
9 Correct 6 ms 10436 KB Output is correct
10 Correct 6 ms 10452 KB Output is correct
11 Correct 6 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10452 KB Output is correct
14 Correct 6 ms 10468 KB Output is correct
15 Correct 7 ms 10520 KB Output is correct
16 Correct 6 ms 10452 KB Output is correct
17 Correct 7 ms 10452 KB Output is correct
18 Correct 7 ms 10452 KB Output is correct
19 Correct 6 ms 10452 KB Output is correct
20 Correct 6 ms 10460 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 6 ms 10452 KB Output is correct
25 Correct 6 ms 10452 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 KB Output is correct
28 Correct 7 ms 10468 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10324 KB Output is correct
2 Correct 2449 ms 131960 KB Output is correct
3 Correct 1018 ms 135172 KB Output is correct
4 Correct 1724 ms 177624 KB Output is correct
5 Correct 1737 ms 135420 KB Output is correct
6 Correct 2341 ms 116976 KB Output is correct
7 Correct 2360 ms 110732 KB Output is correct
8 Correct 2339 ms 121848 KB Output is correct
9 Correct 2234 ms 183252 KB Output is correct
10 Correct 1295 ms 181116 KB Output is correct
11 Correct 2462 ms 137752 KB Output is correct
12 Correct 1031 ms 136084 KB Output is correct
13 Correct 698 ms 104832 KB Output is correct
14 Correct 785 ms 75832 KB Output is correct
15 Correct 844 ms 65432 KB Output is correct
16 Correct 840 ms 65068 KB Output is correct
17 Correct 913 ms 74212 KB Output is correct
18 Correct 6 ms 10452 KB Output is correct
19 Correct 6 ms 10468 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 8 ms 10472 KB Output is correct
22 Correct 6 ms 10380 KB Output is correct

Subtask #3
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10324 KB Output is correct
2 Correct 2449 ms 131960 KB Output is correct
3 Correct 1018 ms 135172 KB Output is correct
4 Correct 1724 ms 177624 KB Output is correct
5 Correct 1737 ms 135420 KB Output is correct
6 Correct 2341 ms 116976 KB Output is correct
7 Correct 2360 ms 110732 KB Output is correct
8 Correct 2339 ms 121848 KB Output is correct
9 Correct 2234 ms 183252 KB Output is correct
10 Correct 1295 ms 181116 KB Output is correct
11 Correct 2462 ms 137752 KB Output is correct
12 Correct 1031 ms 136084 KB Output is correct
13 Correct 698 ms 104832 KB Output is correct
14 Correct 785 ms 75832 KB Output is correct
15 Correct 844 ms 65432 KB Output is correct
16 Correct 840 ms 65068 KB Output is correct
17 Correct 913 ms 74212 KB Output is correct
18 Correct 6 ms 10452 KB Output is correct
19 Correct 6 ms 10468 KB Output is correct
20 Correct 7 ms 10452 KB Output is correct
21 Correct 8 ms 10472 KB Output is correct
22 Correct 6 ms 10380 KB Output is correct
23 Correct 6 ms 10380 KB Output is correct
24 Correct 2491 ms 138428 KB Output is correct
25 Correct 1131 ms 135748 KB Output is correct
26 Correct 1766 ms 182164 KB Output is correct
27 Correct 1743 ms 136196 KB Output is correct
28 Correct 2452 ms 120232 KB Output is correct
29 Correct 2257 ms 110268 KB Output is correct
30 Correct 2305 ms 121904 KB Output is correct
31 Correct 2257 ms 178672 KB Output is correct
32 Correct 1365 ms 181492 KB Output is correct
33 Correct 2525 ms 136960 KB Output is correct
34 Correct 1129 ms 134760 KB Output is correct
35 Correct 6 ms 10452 KB Output is correct
36 Correct 8 ms 10580 KB Output is correct
37 Correct 7 ms 10468 KB Output is correct
38 Correct 7 ms 10488 KB Output is correct
39 Correct 7 ms 10452 KB Output is correct
40 Correct 6 ms 10452 KB Output is correct
41 Correct 6 ms 10452 KB Output is correct
42 Correct 7 ms 10452 KB Output is correct
43 Correct 7 ms 10452 KB Output is correct
44 Correct 7 ms 10536 KB Output is correct
45 Correct 7 ms 10452 KB Output is correct
46 Correct 7 ms 10464 KB Output is correct
47 Correct 6 ms 10460 KB Output is correct
48 Correct 7 ms 10452 KB Output is correct
49 Correct 7 ms 10452 KB Output is correct

Subtask #4
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 10332 KB Output is correct
2 Correct 2357 ms 176112 KB Output is correct
3 Correct 1579 ms 178408 KB Output is correct
4 Correct 1917 ms 179248 KB Output is correct
5 Correct 1895 ms 135212 KB Output is correct
6 Correct 2471 ms 114860 KB Output is correct
7 Correct 2477 ms 109464 KB Output is correct
8 Correct 2329 ms 118996 KB Output is correct
9 Correct 2283 ms 178172 KB Output is correct
10 Correct 1575 ms 180644 KB Output is correct
11 Correct 2542 ms 137340 KB Output is correct
12 Correct 1399 ms 136608 KB Output is correct
13 Correct 1053 ms 115064 KB Output is correct
14 Correct 1064 ms 121848 KB Output is correct
15 Correct 6 ms 10452 KB Output is correct
16 Correct 8 ms 10520 KB Output is correct
17 Correct 6 ms 10460 KB Output is correct
18 Correct 7 ms 10460 KB Output is correct
19 Correct 7 ms 10464 KB Output is correct

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10328 KB Output is correct
2 Correct 2262 ms 174024 KB Output is correct
3 Correct 1583 ms 175232 KB Output is correct
4 Correct 1876 ms 177792 KB Output is correct
5 Correct 1886 ms 137700 KB Output is correct
6 Correct 2742 ms 120380 KB Output is correct
7 Correct 2562 ms 113504 KB Output is correct
8 Correct 2319 ms 119972 KB Output is correct
9 Correct 2282 ms 184284 KB Output is correct
10 Correct 1591 ms 181628 KB Output is correct
11 Correct 2533 ms 138588 KB Output is correct
12 Correct 1330 ms 133388 KB Output is correct
13 Correct 1075 ms 115176 KB Output is correct
14 Correct 1054 ms 122036 KB Output is correct
15 Correct 6 ms 10452 KB Output is correct
16 Correct 7 ms 10452 KB Output is correct
17 Correct 8 ms 10464 KB Output is correct
18 Correct 7 ms 10468 KB Output is correct
19 Correct 6 ms 10452 KB Output is correct

Subtask #6
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 10324 KB Output is correct
2 Correct 5 ms 10324 KB Output is correct
3 Correct 6 ms 10368 KB Output is correct
4 Correct 10 ms 13048 KB Output is correct
5 Correct 11 ms 13012 KB Output is correct
6 Correct 11 ms 13036 KB Output is correct
7 Correct 10 ms 13012 KB Output is correct
8 Correct 9 ms 13012 KB Output is correct
9 Correct 6 ms 10436 KB Output is correct
10 Correct 6 ms 10452 KB Output is correct
11 Correct 6 ms 10452 KB Output is correct
12 Correct 7 ms 10452 KB Output is correct
13 Correct 7 ms 10452 KB Output is correct
14 Correct 6 ms 10468 KB Output is correct
15 Correct 7 ms 10520 KB Output is correct
16 Correct 6 ms 10452 KB Output is correct
17 Correct 7 ms 10452 KB Output is correct
18 Correct 7 ms 10452 KB Output is correct
19 Correct 6 ms 10452 KB Output is correct
20 Correct 6 ms 10460 KB Output is correct
21 Correct 6 ms 10452 KB Output is correct
22 Correct 7 ms 10452 KB Output is correct
23 Correct 7 ms 10452 KB Output is correct
24 Correct 6 ms 10452 KB Output is correct
25 Correct 6 ms 10452 KB Output is correct
26 Correct 7 ms 10452 KB Output is correct
27 Correct 7 ms 10452 KB Output is correct
28 Correct 7 ms 10468 KB Output is correct
29 Correct 5 ms 10324 KB Output is correct
30 Correct 2449 ms 131960 KB Output is correct
31 Correct 1018 ms 135172 KB Output is correct
32 Correct 1724 ms 177624 KB Output is correct
33 Correct 1737 ms 135420 KB Output is correct
34 Correct 2341 ms 116976 KB Output is correct
35 Correct 2360 ms 110732 KB Output is correct
36 Correct 2339 ms 121848 KB Output is correct
37 Correct 2234 ms 183252 KB Output is correct
38 Correct 1295 ms 181116 KB Output is correct
39 Correct 2462 ms 137752 KB Output is correct
40 Correct 1031 ms 136084 KB Output is correct
41 Correct 698 ms 104832 KB Output is correct
42 Correct 785 ms 75832 KB Output is correct
43 Correct 844 ms 65432 KB Output is correct
44 Correct 840 ms 65068 KB Output is correct
45 Correct 913 ms 74212 KB Output is correct
46 Correct 6 ms 10452 KB Output is correct
47 Correct 6 ms 10468 KB Output is correct
48 Correct 7 ms 10452 KB Output is correct
49 Correct 8 ms 10472 KB Output is correct
50 Correct 6 ms 10380 KB Output is correct
51 Correct 6 ms 10380 KB Output is correct
52 Correct 2491 ms 138428 KB Output is correct
53 Correct 1131 ms 135748 KB Output is correct
54 Correct 1766 ms 182164 KB Output is correct
55 Correct 1743 ms 136196 KB Output is correct
56 Correct 2452 ms 120232 KB Output is correct
57 Correct 2257 ms 110268 KB Output is correct
58 Correct 2305 ms 121904 KB Output is correct
59 Correct 2257 ms 178672 KB Output is correct
60 Correct 1365 ms 181492 KB Output is correct
61 Correct 2525 ms 136960 KB Output is correct
62 Correct 1129 ms 134760 KB Output is correct
63 Correct 6 ms 10452 KB Output is correct
64 Correct 8 ms 10580 KB Output is correct
65 Correct 7 ms 10468 KB Output is correct
66 Correct 7 ms 10488 KB Output is correct
67 Correct 7 ms 10452 KB Output is correct
68 Correct 6 ms 10452 KB Output is correct
69 Correct 6 ms 10452 KB Output is correct
70 Correct 7 ms 10452 KB Output is correct
71 Correct 7 ms 10452 KB Output is correct
72 Correct 7 ms 10536 KB Output is correct
73 Correct 7 ms 10452 KB Output is correct
74 Correct 7 ms 10464 KB Output is correct
75 Correct 6 ms 10460 KB Output is correct
76 Correct 7 ms 10452 KB Output is correct
77 Correct 7 ms 10452 KB Output is correct
78 Correct 6 ms 10332 KB Output is correct
79 Correct 2357 ms 176112 KB Output is correct
80 Correct 1579 ms 178408 KB Output is correct
81 Correct 1917 ms 179248 KB Output is correct
82 Correct 1895 ms 135212 KB Output is correct
83 Correct 2471 ms 114860 KB Output is correct
84 Correct 2477 ms 109464 KB Output is correct
85 Correct 2329 ms 118996 KB Output is correct
86 Correct 2283 ms 178172 KB Output is correct
87 Correct 1575 ms 180644 KB Output is correct
88 Correct 2542 ms 137340 KB Output is correct
89 Correct 1399 ms 136608 KB Output is correct
90 Correct 1053 ms 115064 KB Output is correct
91 Correct 1064 ms 121848 KB Output is correct
92 Correct 6 ms 10452 KB Output is correct
93 Correct 8 ms 10520 KB Output is correct
94 Correct 6 ms 10460 KB Output is correct
95 Correct 7 ms 10460 KB Output is correct
96 Correct 7 ms 10464 KB Output is correct
97 Correct 5 ms 10328 KB Output is correct
98 Correct 2262 ms 174024 KB Output is correct
99 Correct 1583 ms 175232 KB Output is correct
100 Correct 1876 ms 177792 KB Output is correct
101 Correct 1886 ms 137700 KB Output is correct
102 Correct 2742 ms 120380 KB Output is correct
103 Correct 2562 ms 113504 KB Output is correct
104 Correct 2319 ms 119972 KB Output is correct
105 Correct 2282 ms 184284 KB Output is correct
106 Correct 1591 ms 181628 KB Output is correct
107 Correct 2533 ms 138588 KB Output is correct
108 Correct 1330 ms 133388 KB Output is correct
109 Correct 1075 ms 115176 KB Output is correct
110 Correct 1054 ms 122036 KB Output is correct
111 Correct 6 ms 10452 KB Output is correct
112 Correct 7 ms 10452 KB Output is correct
113 Correct 8 ms 10464 KB Output is correct
114 Correct 7 ms 10468 KB Output is correct
115 Correct 6 ms 10452 KB Output is correct
116 Correct 2605 ms 139308 KB Output is correct
117 Correct 1420 ms 139468 KB Output is correct
118 Correct 1936 ms 184572 KB Output is correct
119 Correct 2033 ms 139868 KB Output is correct
120 Correct 2762 ms 116048 KB Output is correct
121 Correct 2990 ms 117580 KB Output is correct
122 Correct 2426 ms 122000 KB Output is correct
123 Correct 2296 ms 182656 KB Output is correct
124 Correct 1623 ms 178828 KB Output is correct
125 Correct 2574 ms 138260 KB Output is correct
126 Correct 1418 ms 138532 KB Output is correct
127 Correct 1378 ms 140960 KB Output is correct
128 Correct 1153 ms 118288 KB Output is correct
129 Correct 1135 ms 124556 KB Output is correct