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답안 #1037635

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1037635 2024-07-29T06:16:40 Z 변재우(#10984) Tourism (JOI23_tourism) C++17
28 / 100
 5000 ms 33364 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

const int Nmax=100010, sqrtN=300, S=1<<17;
int N, M, Q, C[Nmax], p, L[Nmax], R[Nmax], D[Nmax], P[20][Nmax];
int curr, par, cnt[Nmax], ans[Nmax];
vector<int> adj[Nmax];
struct Query {int l, r, i;}X[Nmax];

int LCA(int u, int v) {
    if(!u || !v) return 0;
    if(D[u]<D[v]) swap(u, v);
    for(int i=16; i>=0; i--) if(D[P[i][u]]>D[v]) u=P[i][u];
    if(D[u]!=D[v]) u=P[0][u];
    for(int i=16; i>=0; i--) if(P[i][u]!=P[i][v]) u=P[i][u], v=P[i][v];
    if(u!=v) u=P[0][u];
    return u;
}

class Seg {
public:
    void Update(int k, int v) {Update(1, 1, S, k, v);}
    int Query(int l, int r) {return Query(1, 1, S, l, r);}
private:
    int Tree[2*S];
    void Update(int node, int s, int e, int k, int v) {
        if(s==e) {
            Tree[node]=v;
            return;
        }
        int lch=2*node, rch=lch+1, m=(s+e)/2;
        if(k<=m) Update(lch, s, m, k, v);
        else Update(rch, m+1, e, k, v);
        Tree[node]=Tree[lch]+Tree[rch];
    }
    int Query(int node, int s, int e, int l, int r) {
        if(s>r || l>e) return 0;
        if(l<=s && e<=r) return Tree[node];
        int lch=2*node, rch=lch+1, m=(s+e)/2;
        return Query(lch, s, m, l, r)+Query(rch, m+1, e, l, r);
    }
}T;

class LSeg {
public:
    void Update(int k, int v) {Update(1, 1, S, k, v);}
    int Query(int l, int r) {return Query(1, 1, S, l, r);}
private:
    int Tree[2*S];
    void Update(int node, int s, int e, int k, int v) {
        if(s==e) {
            Tree[node]=v;
            return;
        }
        int lch=2*node, rch=lch+1, m=(s+e)/2;
        if(k<=m) Update(lch, s, m, k, v);
        else Update(rch, m+1, e, k, v);
        Tree[node]=LCA(Tree[lch], Tree[rch]);
    }
    int Query(int node, int s, int e, int l, int r) {
        if(s>r || l>e) return 0;
        if(l<=s && e<=r) return Tree[node];
        int lch=2*node, rch=lch+1, m=(s+e)/2;
        if(r<=m) return Query(lch, s, m, l, r);
        if(l>=m+1) return Query(rch, m+1, e, l, r);
        return LCA(Query(lch, s, m, l, r), Query(rch, m+1, e, l, r));
    }
}TL;

void DFS(int curr, int prev) {
    L[curr]=++p;
    for(int next:adj[curr]) if(next!=prev) D[next]=D[curr]+1, P[0][next]=curr, DFS(next, curr);
    R[curr]=p;
}


void Add(int x) {
    if(!par) {
        par=x, curr=1;
        cnt[x]++, T.Update(L[x], 1);
        return;
    }
    cnt[x]++;
    if(cnt[x]>1) return;
    if(!T.Query(L[x], R[x])) {
        int y=x;
        for(int i=16; i>=0; i--) if(P[i][y] && !T.Query(L[P[i][y]], R[P[i][y]])) y=P[i][y];
        y=P[0][y];
        curr+=D[x]-D[y];
    }
    T.Update(L[x], 1);
    int np=LCA(par, x);
    curr+=D[par]-D[np], par=np;
    return;
}

void Delete(int x, int tl, int tr) {
    cnt[x]--;
    if(cnt[x]) return;
    T.Update(L[x], 0);
    if(!T.Query(L[x], R[x])) {
        int y=x;
        for(int i=16; i>=0; i--) if(P[i][y] && !T.Query(L[P[i][y]], R[P[i][y]])) y=P[i][y];
        y=P[0][y];
        curr-=D[x]-D[y];
    }
    int np=TL.Query(tl, tr);
    curr-=D[np]-D[par], par=np;
    return;
}

signed main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin>>N>>M>>Q;
    for(int i=1; i<N; i++) {
        int u, v; cin>>u>>v;
        adj[u].push_back(v), adj[v].push_back(u);
    }
    DFS(1, 0);
    for(int i=1; i<20; i++) for(int j=1; j<=N; j++) P[i][j]=P[i-1][P[i-1][j]];
    for(int i=1; i<=M; i++) cin>>C[i], TL.Update(i, C[i]);
    for(int i=1; i<=Q; i++) cin>>X[i].l>>X[i].r, X[i].i=i;
    sort(X+1, X+Q+1, [](Query a, Query b) {return ((a.l/sqrtN)!=(b.l/sqrtN))?((a.l/sqrtN)<(b.l/sqrtN)):(a.r<b.r);});
    for(int i=X[1].l; i<=X[1].r; i++) Add(C[i]);
    ans[X[1].i]=curr;
    for(int i=2, l=X[1].l, r=X[1].r; i<=Q; i++) {
        while(l>X[i].l) Add(C[--l]);
        while(r<X[i].r) Add(C[++r]);
        while(l<X[i].l) Delete(C[l], l+1, r), l++;
        while(r>X[i].r) Delete(C[r], l, r-1), r--;
        ans[X[i].i]=curr;
    }
    for(int i=1; i<=Q; i++) cout<<ans[i]<<"\n";
    return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 22872 KB Output is correct
2 Correct 2 ms 22876 KB Output is correct
3 Correct 2 ms 22876 KB Output is correct
4 Correct 7 ms 22876 KB Output is correct
5 Correct 8 ms 23108 KB Output is correct
6 Correct 6 ms 22876 KB Output is correct
7 Correct 7 ms 22876 KB Output is correct
8 Correct 6 ms 23060 KB Output is correct
9 Correct 12 ms 23104 KB Output is correct
10 Correct 12 ms 22876 KB Output is correct
11 Correct 11 ms 22876 KB Output is correct
12 Correct 3 ms 22876 KB Output is correct
13 Correct 3 ms 22876 KB Output is correct
14 Correct 3 ms 22876 KB Output is correct
15 Correct 10 ms 23108 KB Output is correct
16 Correct 10 ms 22872 KB Output is correct
17 Correct 10 ms 23116 KB Output is correct
18 Correct 10 ms 22876 KB Output is correct
19 Correct 9 ms 23108 KB Output is correct
20 Correct 9 ms 22876 KB Output is correct
21 Correct 11 ms 22876 KB Output is correct
22 Correct 12 ms 23116 KB Output is correct
23 Correct 9 ms 22876 KB Output is correct
24 Correct 11 ms 23112 KB Output is correct
25 Correct 13 ms 22876 KB Output is correct
26 Correct 11 ms 23056 KB Output is correct
27 Correct 2 ms 24924 KB Output is correct
28 Correct 3 ms 22872 KB Output is correct
29 Correct 3 ms 22872 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 22872 KB Output is correct
2 Correct 2 ms 22876 KB Output is correct
3 Correct 2 ms 22876 KB Output is correct
4 Correct 7 ms 22876 KB Output is correct
5 Correct 8 ms 23108 KB Output is correct
6 Correct 6 ms 22876 KB Output is correct
7 Correct 7 ms 22876 KB Output is correct
8 Correct 6 ms 23060 KB Output is correct
9 Correct 12 ms 23104 KB Output is correct
10 Correct 12 ms 22876 KB Output is correct
11 Correct 11 ms 22876 KB Output is correct
12 Correct 3 ms 22876 KB Output is correct
13 Correct 3 ms 22876 KB Output is correct
14 Correct 3 ms 22876 KB Output is correct
15 Correct 10 ms 23108 KB Output is correct
16 Correct 10 ms 22872 KB Output is correct
17 Correct 10 ms 23116 KB Output is correct
18 Correct 10 ms 22876 KB Output is correct
19 Correct 9 ms 23108 KB Output is correct
20 Correct 9 ms 22876 KB Output is correct
21 Correct 11 ms 22876 KB Output is correct
22 Correct 12 ms 23116 KB Output is correct
23 Correct 9 ms 22876 KB Output is correct
24 Correct 11 ms 23112 KB Output is correct
25 Correct 13 ms 22876 KB Output is correct
26 Correct 11 ms 23056 KB Output is correct
27 Correct 2 ms 24924 KB Output is correct
28 Correct 3 ms 22872 KB Output is correct
29 Correct 3 ms 22872 KB Output is correct
30 Correct 79 ms 23132 KB Output is correct
31 Correct 89 ms 23128 KB Output is correct
32 Correct 114 ms 23132 KB Output is correct
33 Correct 122 ms 23132 KB Output is correct
34 Correct 115 ms 23132 KB Output is correct
35 Correct 13 ms 23132 KB Output is correct
36 Correct 13 ms 23240 KB Output is correct
37 Correct 13 ms 23236 KB Output is correct
38 Correct 89 ms 23292 KB Output is correct
39 Correct 93 ms 23128 KB Output is correct
40 Correct 107 ms 23132 KB Output is correct
41 Correct 12 ms 23132 KB Output is correct
42 Correct 13 ms 23132 KB Output is correct
43 Correct 13 ms 23300 KB Output is correct
44 Correct 99 ms 23132 KB Output is correct
45 Correct 97 ms 23132 KB Output is correct
46 Correct 113 ms 23376 KB Output is correct
47 Correct 12 ms 23132 KB Output is correct
48 Correct 12 ms 23248 KB Output is correct
49 Correct 13 ms 23264 KB Output is correct
50 Correct 96 ms 23132 KB Output is correct
51 Correct 91 ms 23220 KB Output is correct
52 Correct 92 ms 23132 KB Output is correct
53 Correct 107 ms 23128 KB Output is correct
54 Correct 95 ms 23224 KB Output is correct
55 Correct 94 ms 23128 KB Output is correct
56 Correct 3 ms 25136 KB Output is correct
57 Correct 2 ms 23024 KB Output is correct
58 Correct 5 ms 23132 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 22872 KB Output is correct
2 Correct 2 ms 24924 KB Output is correct
3 Correct 3 ms 25084 KB Output is correct
4 Execution timed out 5072 ms 32852 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 22876 KB Output is correct
2 Correct 160 ms 27428 KB Output is correct
3 Correct 232 ms 28244 KB Output is correct
4 Correct 214 ms 28528 KB Output is correct
5 Correct 119 ms 31144 KB Output is correct
6 Correct 226 ms 31056 KB Output is correct
7 Correct 371 ms 31264 KB Output is correct
8 Correct 383 ms 31056 KB Output is correct
9 Correct 375 ms 31060 KB Output is correct
10 Correct 412 ms 31268 KB Output is correct
11 Correct 377 ms 31152 KB Output is correct
12 Correct 315 ms 31116 KB Output is correct
13 Correct 307 ms 33108 KB Output is correct
14 Correct 251 ms 33364 KB Output is correct
15 Correct 276 ms 33340 KB Output is correct
16 Correct 315 ms 33204 KB Output is correct
17 Correct 307 ms 33316 KB Output is correct
18 Correct 289 ms 33108 KB Output is correct
19 Correct 114 ms 30548 KB Output is correct
20 Correct 161 ms 30544 KB Output is correct
21 Correct 261 ms 30672 KB Output is correct
22 Correct 314 ms 30584 KB Output is correct
23 Correct 339 ms 31000 KB Output is correct
24 Correct 388 ms 30688 KB Output is correct
25 Correct 409 ms 30904 KB Output is correct
26 Correct 481 ms 30808 KB Output is correct
27 Correct 489 ms 30804 KB Output is correct
28 Correct 497 ms 30752 KB Output is correct
29 Correct 559 ms 30664 KB Output is correct
30 Correct 541 ms 30756 KB Output is correct
31 Correct 504 ms 32836 KB Output is correct
32 Correct 458 ms 32856 KB Output is correct
33 Correct 490 ms 32848 KB Output is correct
34 Correct 478 ms 32896 KB Output is correct

Subtask #5
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 22876 KB Output is correct
2 Correct 3 ms 25088 KB Output is correct
3 Correct 3 ms 24924 KB Output is correct
4 Execution timed out 5087 ms 29972 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 22872 KB Output is correct
2 Correct 2 ms 22876 KB Output is correct
3 Correct 2 ms 22876 KB Output is correct
4 Correct 7 ms 22876 KB Output is correct
5 Correct 8 ms 23108 KB Output is correct
6 Correct 6 ms 22876 KB Output is correct
7 Correct 7 ms 22876 KB Output is correct
8 Correct 6 ms 23060 KB Output is correct
9 Correct 12 ms 23104 KB Output is correct
10 Correct 12 ms 22876 KB Output is correct
11 Correct 11 ms 22876 KB Output is correct
12 Correct 3 ms 22876 KB Output is correct
13 Correct 3 ms 22876 KB Output is correct
14 Correct 3 ms 22876 KB Output is correct
15 Correct 10 ms 23108 KB Output is correct
16 Correct 10 ms 22872 KB Output is correct
17 Correct 10 ms 23116 KB Output is correct
18 Correct 10 ms 22876 KB Output is correct
19 Correct 9 ms 23108 KB Output is correct
20 Correct 9 ms 22876 KB Output is correct
21 Correct 11 ms 22876 KB Output is correct
22 Correct 12 ms 23116 KB Output is correct
23 Correct 9 ms 22876 KB Output is correct
24 Correct 11 ms 23112 KB Output is correct
25 Correct 13 ms 22876 KB Output is correct
26 Correct 11 ms 23056 KB Output is correct
27 Correct 2 ms 24924 KB Output is correct
28 Correct 3 ms 22872 KB Output is correct
29 Correct 3 ms 22872 KB Output is correct
30 Correct 79 ms 23132 KB Output is correct
31 Correct 89 ms 23128 KB Output is correct
32 Correct 114 ms 23132 KB Output is correct
33 Correct 122 ms 23132 KB Output is correct
34 Correct 115 ms 23132 KB Output is correct
35 Correct 13 ms 23132 KB Output is correct
36 Correct 13 ms 23240 KB Output is correct
37 Correct 13 ms 23236 KB Output is correct
38 Correct 89 ms 23292 KB Output is correct
39 Correct 93 ms 23128 KB Output is correct
40 Correct 107 ms 23132 KB Output is correct
41 Correct 12 ms 23132 KB Output is correct
42 Correct 13 ms 23132 KB Output is correct
43 Correct 13 ms 23300 KB Output is correct
44 Correct 99 ms 23132 KB Output is correct
45 Correct 97 ms 23132 KB Output is correct
46 Correct 113 ms 23376 KB Output is correct
47 Correct 12 ms 23132 KB Output is correct
48 Correct 12 ms 23248 KB Output is correct
49 Correct 13 ms 23264 KB Output is correct
50 Correct 96 ms 23132 KB Output is correct
51 Correct 91 ms 23220 KB Output is correct
52 Correct 92 ms 23132 KB Output is correct
53 Correct 107 ms 23128 KB Output is correct
54 Correct 95 ms 23224 KB Output is correct
55 Correct 94 ms 23128 KB Output is correct
56 Correct 3 ms 25136 KB Output is correct
57 Correct 2 ms 23024 KB Output is correct
58 Correct 5 ms 23132 KB Output is correct
59 Correct 2 ms 22872 KB Output is correct
60 Correct 2 ms 24924 KB Output is correct
61 Correct 3 ms 25084 KB Output is correct
62 Execution timed out 5072 ms 32852 KB Time limit exceeded
63 Halted 0 ms 0 KB -