oj.uz

답안 #978650

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
978650 2024-05-09T12:25:26 Z vjudge1 Sprinkler (JOI22_sprinkler) C++17
41 / 100
 4000 ms 123080 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx2")

using namespace std;

int n,L,q;
vector<int> g[200005],f[200005];
int t[200005];
int h[200005],tin[200005],curtin;
int v[200005],pos[200005];
int firstson[200005][45],lastson[200005][45];

void dfs(int nod)
{
    tin[nod] = ++curtin;
    for (auto vecin : g[nod])
    {
        if (vecin != t[nod])
        {
            t[vecin] = nod;
            f[nod].push_back(vecin);
            h[vecin] = 1 + h[nod];
            dfs(vecin);
        }
    }
}

bool cmp(int x,int y)
{
    if (h[x] != h[y])
        return h[x] < h[y];
    return tin[x] < tin[y];
}

int aint[800005];

int vkk[200005];

int bulan = 15;

void update(int nod,int l,int r,int st,int dr,int val)
{
    if (r < st or dr < l)
        return;
    st = max(st,l);
    dr = min(dr,r);
    if (st == l and r == dr)
    {
        aint[nod] = 1ll * aint[nod] * val % L;
        //cout << nod << ' ' << l << ' ' << r << ' ' << aint[nod] << endl;
        return;
    }
    if (dr - st + 1 <= bulan)
    {
        for (int i = st; i <= dr; i++)
            vkk[i] = 1ll * vkk[i] * val % L;
        return;
    }
    int mij = (l + r) / 2;
    update(2 * nod,l,mij,st,dr,val);
    update(2 * nod + 1,mij + 1,r,st,dr,val);
}

int paint[200005];

void build(int nod,int l,int r)
{
    if (l == r)
        paint[l] = nod;
    else
    {
        int mij = (l + r) / 2;
        build(2 * nod,l,mij);
        build(2 * nod + 1,mij + 1,r);
    }
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin >> n >> L;
    for (int i = 1; i < n; i++)
    {
        int x,y;
        cin >> x >> y;
        g[x].push_back(y);
        g[y].push_back(x);
    }
    dfs(1);
    for (int i = 1; i <= n; i++)
        v[i] = i;
    sort(v + 1,v + n + 1,cmp);
    for (int i = 1; i <= n; i++)
        pos[v[i]] = i;
    for (int i = 1; i <= 4 * n; i++)
        aint[i] = 1;
    build(1,1,n);
    for (int i = 1; i <= n; i++)
        vkk[i] = 1;
    for (int i = 1; i <= n; i++)
    {
        int xx;
        cin >> xx;
        update(1,1,n,pos[i],pos[i],xx);
    }
    for (int i = 1; i <= n; i++)
    {
        int nod = i;
        for (int j = 0; j <= 40; j++)
        {
            if (firstson[nod][j] == 0 or pos[i] < pos[firstson[nod][j]])
                firstson[nod][j] = i;
            if (lastson[nod][j] == 0 or pos[i] > pos[lastson[nod][j]])
                lastson[nod][j] = i;
            nod = t[nod];
            if (nod == 0)
                break;
        }
    }
    cin >> q;
    for (int i = 1; i <= q; i++)
    {
        int tip;
        cin >> tip;
        if (tip == 1)
        {
            int x,d,w;
            cin >> x >> d >> w;
            vector<int> ruta;
            int nod = x;
            for (int j = 0; j <= min(d,h[x]); j++)
            {
                ruta.push_back(nod);
                nod = t[nod];
            }
            nod = ruta.back();
            ruta.pop_back();
            int dist = d - (h[x] - h[nod]);
            for (int j = 0; j <= dist; j++)
            {
                if (firstson[nod][j] == 0)
                    break;
                int lu = pos[firstson[nod][j]],ru = pos[lastson[nod][j]];
                update(1,1,n,lu,ru,w);
            }
            while (!ruta.empty())
            {
                nod = ruta.back();
                ruta.pop_back();
                int dist = d - (h[x] - h[nod]);
                for (int j = dist - 1; j <= dist; j++)
                {
                    if (firstson[nod][j] == 0)
                        break;
                    int lu = pos[firstson[nod][j]],ru = pos[lastson[nod][j]];
                    update(1,1,n,lu,ru,w);
                }
            }
        }
        else
        {
            int x;
            cin >> x;
            int vjj = vkk[pos[x]];
            x = paint[pos[x]];
            int rsp = 1ll * aint[1] * vjj % L;
            while (x != 1)
            {
                rsp = 1ll * rsp * aint[x] % L;
                x /= 2;
            }
            //cout << pos[x] << ' ';
            cout << rsp << '\n';
        }
    }
    return 0;
}

/**
Rezolvarea se bazeaza pe faptul ca D mic
Dupa ce fac ordinea dfs, pun nodurile intr-un sir sortate dupa inaltime si, la egalitate, dupa tin
La un update, iau al max(h[i],D)-lea stramos al lui x, fie el y. Updatez, pe inaltimile h[y] + k pentru k de la 0 la D - (h[x] - h[y]), subarborele
Apoi, merg nod dupa nod cu y spre x, la fiecare pas updatez ultimele doua nivele la care ajunge nodul curent y
Un update este de range prod si query de point value, deci pot face cu un aib care tine chestiile modulo L
Complexitate update: D * log, query: log
Pentru a afla care sunt primul si ultimul nod de la o inaltime care sunt in subarborele meu, inaltime <= D + h[nod], pot doar sa precalculez in N*D

Complexitate: O(N * D + N * logN + Q * D * logN)

Exista o micuta problema, aib-ul nu cred ca isi face treaba deoarece L nu e prim, incercam aint si fingers crossed sa nu dea TLE
**/

Subtask #1
3.0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14680 KB Output is correct
2 Correct 3 ms 14684 KB Output is correct
3 Correct 3 ms 14684 KB Output is correct
4 Correct 4 ms 15196 KB Output is correct
5 Correct 5 ms 15196 KB Output is correct
6 Correct 5 ms 15196 KB Output is correct
7 Correct 5 ms 15292 KB Output is correct
8 Correct 4 ms 15192 KB Output is correct
9 Correct 3 ms 14684 KB Output is correct
10 Correct 3 ms 14776 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 3 ms 14684 KB Output is correct
13 Correct 3 ms 14684 KB Output is correct
14 Correct 3 ms 14836 KB Output is correct
15 Correct 3 ms 14684 KB Output is correct
16 Correct 3 ms 14936 KB Output is correct
17 Correct 3 ms 14684 KB Output is correct
18 Correct 3 ms 14684 KB Output is correct
19 Correct 3 ms 14764 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14684 KB Output is correct
23 Correct 4 ms 14684 KB Output is correct
24 Correct 3 ms 14684 KB Output is correct
25 Correct 3 ms 14684 KB Output is correct
26 Correct 3 ms 14684 KB Output is correct
27 Correct 3 ms 14684 KB Output is correct
28 Correct 3 ms 14680 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 14684 KB Output is correct
2 Correct 591 ms 102732 KB Output is correct
3 Correct 664 ms 99436 KB Output is correct
4 Correct 687 ms 115580 KB Output is correct
5 Correct 633 ms 101272 KB Output is correct
6 Correct 407 ms 100260 KB Output is correct
7 Correct 412 ms 100176 KB Output is correct
8 Correct 284 ms 98616 KB Output is correct
9 Correct 619 ms 123080 KB Output is correct
10 Correct 690 ms 118420 KB Output is correct
11 Correct 567 ms 102876 KB Output is correct
12 Correct 662 ms 99808 KB Output is correct
13 Correct 356 ms 97736 KB Output is correct
14 Correct 435 ms 97580 KB Output is correct
15 Correct 376 ms 97980 KB Output is correct
16 Correct 352 ms 97360 KB Output is correct
17 Correct 398 ms 98388 KB Output is correct
18 Correct 3 ms 14936 KB Output is correct
19 Correct 3 ms 14684 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14684 KB Output is correct

Subtask #3
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 14684 KB Output is correct
2 Correct 591 ms 102732 KB Output is correct
3 Correct 664 ms 99436 KB Output is correct
4 Correct 687 ms 115580 KB Output is correct
5 Correct 633 ms 101272 KB Output is correct
6 Correct 407 ms 100260 KB Output is correct
7 Correct 412 ms 100176 KB Output is correct
8 Correct 284 ms 98616 KB Output is correct
9 Correct 619 ms 123080 KB Output is correct
10 Correct 690 ms 118420 KB Output is correct
11 Correct 567 ms 102876 KB Output is correct
12 Correct 662 ms 99808 KB Output is correct
13 Correct 356 ms 97736 KB Output is correct
14 Correct 435 ms 97580 KB Output is correct
15 Correct 376 ms 97980 KB Output is correct
16 Correct 352 ms 97360 KB Output is correct
17 Correct 398 ms 98388 KB Output is correct
18 Correct 3 ms 14936 KB Output is correct
19 Correct 3 ms 14684 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14684 KB Output is correct
23 Correct 3 ms 14684 KB Output is correct
24 Correct 603 ms 102900 KB Output is correct
25 Correct 738 ms 99668 KB Output is correct
26 Correct 701 ms 120940 KB Output is correct
27 Correct 633 ms 101252 KB Output is correct
28 Correct 473 ms 100512 KB Output is correct
29 Correct 434 ms 100012 KB Output is correct
30 Correct 315 ms 98796 KB Output is correct
31 Correct 691 ms 117416 KB Output is correct
32 Correct 768 ms 118476 KB Output is correct
33 Correct 582 ms 102748 KB Output is correct
34 Correct 740 ms 99688 KB Output is correct
35 Correct 3 ms 14684 KB Output is correct
36 Correct 3 ms 14684 KB Output is correct
37 Correct 3 ms 14684 KB Output is correct
38 Correct 3 ms 14680 KB Output is correct
39 Correct 3 ms 14680 KB Output is correct
40 Correct 3 ms 14904 KB Output is correct
41 Correct 3 ms 14684 KB Output is correct
42 Correct 4 ms 14684 KB Output is correct
43 Correct 3 ms 14680 KB Output is correct
44 Correct 3 ms 14684 KB Output is correct
45 Correct 3 ms 14684 KB Output is correct
46 Correct 3 ms 14684 KB Output is correct
47 Correct 3 ms 14684 KB Output is correct
48 Correct 3 ms 14684 KB Output is correct
49 Correct 4 ms 14684 KB Output is correct

Subtask #4
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14684 KB Output is correct
2 Correct 988 ms 120448 KB Output is correct
3 Correct 3551 ms 115312 KB Output is correct
4 Correct 1484 ms 116248 KB Output is correct
5 Correct 1439 ms 99868 KB Output is correct
6 Correct 1259 ms 99240 KB Output is correct
7 Correct 965 ms 98884 KB Output is correct
8 Correct 313 ms 97096 KB Output is correct
9 Correct 977 ms 114936 KB Output is correct
10 Correct 3535 ms 118136 KB Output is correct
11 Correct 999 ms 100032 KB Output is correct
12 Correct 3959 ms 99792 KB Output is correct
13 Execution timed out 4038 ms 97268 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 14680 KB Output is correct
2 Correct 1049 ms 116828 KB Output is correct
3 Correct 3606 ms 111464 KB Output is correct
4 Correct 1531 ms 114288 KB Output is correct
5 Correct 1499 ms 101456 KB Output is correct
6 Correct 1193 ms 100768 KB Output is correct
7 Correct 1075 ms 100088 KB Output is correct
8 Correct 308 ms 98564 KB Output is correct
9 Correct 1004 ms 121940 KB Output is correct
10 Correct 3536 ms 119216 KB Output is correct
11 Correct 1010 ms 103008 KB Output is correct
12 Correct 3867 ms 100296 KB Output is correct
13 Execution timed out 4035 ms 97904 KB Time limit exceeded
14 Halted 0 ms 0 KB -

Subtask #6
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 14680 KB Output is correct
2 Correct 3 ms 14684 KB Output is correct
3 Correct 3 ms 14684 KB Output is correct
4 Correct 4 ms 15196 KB Output is correct
5 Correct 5 ms 15196 KB Output is correct
6 Correct 5 ms 15196 KB Output is correct
7 Correct 5 ms 15292 KB Output is correct
8 Correct 4 ms 15192 KB Output is correct
9 Correct 3 ms 14684 KB Output is correct
10 Correct 3 ms 14776 KB Output is correct
11 Correct 3 ms 14684 KB Output is correct
12 Correct 3 ms 14684 KB Output is correct
13 Correct 3 ms 14684 KB Output is correct
14 Correct 3 ms 14836 KB Output is correct
15 Correct 3 ms 14684 KB Output is correct
16 Correct 3 ms 14936 KB Output is correct
17 Correct 3 ms 14684 KB Output is correct
18 Correct 3 ms 14684 KB Output is correct
19 Correct 3 ms 14764 KB Output is correct
20 Correct 3 ms 14684 KB Output is correct
21 Correct 3 ms 14684 KB Output is correct
22 Correct 3 ms 14684 KB Output is correct
23 Correct 4 ms 14684 KB Output is correct
24 Correct 3 ms 14684 KB Output is correct
25 Correct 3 ms 14684 KB Output is correct
26 Correct 3 ms 14684 KB Output is correct
27 Correct 3 ms 14684 KB Output is correct
28 Correct 3 ms 14680 KB Output is correct
29 Correct 4 ms 14684 KB Output is correct
30 Correct 591 ms 102732 KB Output is correct
31 Correct 664 ms 99436 KB Output is correct
32 Correct 687 ms 115580 KB Output is correct
33 Correct 633 ms 101272 KB Output is correct
34 Correct 407 ms 100260 KB Output is correct
35 Correct 412 ms 100176 KB Output is correct
36 Correct 284 ms 98616 KB Output is correct
37 Correct 619 ms 123080 KB Output is correct
38 Correct 690 ms 118420 KB Output is correct
39 Correct 567 ms 102876 KB Output is correct
40 Correct 662 ms 99808 KB Output is correct
41 Correct 356 ms 97736 KB Output is correct
42 Correct 435 ms 97580 KB Output is correct
43 Correct 376 ms 97980 KB Output is correct
44 Correct 352 ms 97360 KB Output is correct
45 Correct 398 ms 98388 KB Output is correct
46 Correct 3 ms 14936 KB Output is correct
47 Correct 3 ms 14684 KB Output is correct
48 Correct 3 ms 14684 KB Output is correct
49 Correct 3 ms 14684 KB Output is correct
50 Correct 3 ms 14684 KB Output is correct
51 Correct 3 ms 14684 KB Output is correct
52 Correct 603 ms 102900 KB Output is correct
53 Correct 738 ms 99668 KB Output is correct
54 Correct 701 ms 120940 KB Output is correct
55 Correct 633 ms 101252 KB Output is correct
56 Correct 473 ms 100512 KB Output is correct
57 Correct 434 ms 100012 KB Output is correct
58 Correct 315 ms 98796 KB Output is correct
59 Correct 691 ms 117416 KB Output is correct
60 Correct 768 ms 118476 KB Output is correct
61 Correct 582 ms 102748 KB Output is correct
62 Correct 740 ms 99688 KB Output is correct
63 Correct 3 ms 14684 KB Output is correct
64 Correct 3 ms 14684 KB Output is correct
65 Correct 3 ms 14684 KB Output is correct
66 Correct 3 ms 14680 KB Output is correct
67 Correct 3 ms 14680 KB Output is correct
68 Correct 3 ms 14904 KB Output is correct
69 Correct 3 ms 14684 KB Output is correct
70 Correct 4 ms 14684 KB Output is correct
71 Correct 3 ms 14680 KB Output is correct
72 Correct 3 ms 14684 KB Output is correct
73 Correct 3 ms 14684 KB Output is correct
74 Correct 3 ms 14684 KB Output is correct
75 Correct 3 ms 14684 KB Output is correct
76 Correct 3 ms 14684 KB Output is correct
77 Correct 4 ms 14684 KB Output is correct
78 Correct 3 ms 14684 KB Output is correct
79 Correct 988 ms 120448 KB Output is correct
80 Correct 3551 ms 115312 KB Output is correct
81 Correct 1484 ms 116248 KB Output is correct
82 Correct 1439 ms 99868 KB Output is correct
83 Correct 1259 ms 99240 KB Output is correct
84 Correct 965 ms 98884 KB Output is correct
85 Correct 313 ms 97096 KB Output is correct
86 Correct 977 ms 114936 KB Output is correct
87 Correct 3535 ms 118136 KB Output is correct
88 Correct 999 ms 100032 KB Output is correct
89 Correct 3959 ms 99792 KB Output is correct
90 Execution timed out 4038 ms 97268 KB Time limit exceeded
91 Halted 0 ms 0 KB -