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답안 #796674

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
796674 2023-07-28T15:34:04 Z vjudge1 Tourism (JOI23_tourism) C++17
34 / 100
 5000 ms 16216 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;

const int N = 100000 + 10;
const int M = (1 << 17);

int n, m, q;

int T;
int sz[N];
int tin[N];
int tout[N];
int depth[N];
int par[N];
int head[N];
int heavy[N];
vector<int> g[N];
int sum_cnt[2 * M];
bool have[2 * M];
int color[2 * M];

void upd(int pos, int d) {
    for (sum_cnt[pos += M] += d; pos > 1; pos >>= 1)
        sum_cnt[pos >> 1] = sum_cnt[pos] + sum_cnt[pos ^ 1];
}
int get(int ql, int qr) {
    int res = 0;
    for (ql += M, qr += M + 1; ql < qr; ql >>= 1, qr >>= 1) {
        if (ql & 1)
            res += sum_cnt[ql++];
        if (qr & 1)
            res += sum_cnt[--qr];
    }
    return res;
}
void precalc(int s, int p = 0) {
    sz[s] = 1;
    par[s] = p;
    depth[s] = depth[p] + (p > 0);
    for (int &to : g[s]) {
        if (to == p)
            continue;
        precalc(to, s);
        sz[s] += sz[to];
        if (sz[heavy[s]] > sz[to])
            heavy[s] = to;
    }
}

void decompose(int s, int h) {
    tin[s] = T++;
    head[s] = h;
    if(heavy[s]) decompose(heavy[s], h);
    for(int to : g[s]) {
        if(to == par[s] || to == heavy[s]) continue;
        decompose(to, to);
    }
    tout[s] = T;
}
void recalc(int v) {
    have[v] = (color[v] > 0);
    if(2 * v < 2 * M && have[2 * v]) have[v] = true;
    if(2 * v + 1 < 2 * M && have[2 * v + 1]) have[v] = true;
}
void push(int v) {
    if(!color[v] || v >= M) return;
    color[2 * v] = color[v];
    recalc(2 * v);
    color[2 * v + 1] = color[v];
    recalc(2 * v + 1);
    color[v] = 0;
}   
void set_color(int v, int d, int cl) {
    if(color[v])
        upd(color[v], -d);
    color[v] = cl;
    if(color[v])
        upd(color[v], d);
    recalc(v);
} 
void clear(int l, int r, int v) {
    set_color(v, r - l + 1, 0);
    if(!have[v]) return;
    int mid = (l + r) / 2;
    clear(l, mid, 2 * v);
    clear(mid + 1, r, 2 * v + 1);
    have[v] = false;
}
void update(int ql, int qr, int cl, int l, int r, int v, bool type = 0) {
    if(qr < l || ql > r) return;
    if(ql <= l && r <= qr) {
        clear(l, r, v);
        set_color(v, r - l + 1, cl); 
        return;
    }
    push(v);
    int mid = (l + r) / 2;
    update(ql, qr, cl, l, mid, 2 * v, 0);
    update(ql, qr, cl, mid + 1, r, 2 * v + 1, 0);
    recalc(v);
}
void update(int u, int v, int cl) {
    for(; head[u] != head[v]; v = par[head[v]]) {
        if(depth[head[u]] > depth[head[v]]) swap(u, v);
        update(tin[head[v]], tin[v], cl, 0, M - 1, 1);
    }
    if(depth[u] > depth[v]) swap(u, v);
    update(tin[u], tin[v], cl, 0, M - 1, 1);
}

struct query {
    int l, r, i;
};

vector<query> qr[N];

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> m >> q;
    for(int i = 0; i < n - 1; i++) {
        int a, b;
        cin >> a >> b;
        g[a].push_back(b);
        g[b].push_back(a);
    }
    int c[m + 1];
    for(int i = 1; i <= m; i++) 
        cin >> c[i];
    
    precalc(1);
    decompose(1, 1);
    for(int i = 0; i < q; i++) {
        int l, r;
        cin >> l >> r;
        qr[r].push_back({l, r, i});
    }
    int res[q] = {};
    for(int i = 1; i <= m; i++) {
        if(i > 1) 
            update(c[i], c[i - 1], i - 1);
        for(auto t : qr[i]) {
            if(t.l == t.r) res[t.i] = 1;
            else res[t.i] = get(t.l, t.r);
        }
    }
    for(int i = 0; i < q; i++) 
        cout << res[i] << '\n';
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 3 ms 5076 KB Output is correct
3 Correct 3 ms 5036 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 5040 KB Output is correct
13 Correct 3 ms 5076 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 8 ms 5040 KB Output is correct
16 Correct 8 ms 5164 KB Output is correct
17 Correct 8 ms 5164 KB Output is correct
18 Correct 6 ms 5076 KB Output is correct
19 Correct 9 ms 5040 KB Output is correct
20 Correct 7 ms 5044 KB Output is correct
21 Correct 3 ms 5036 KB Output is correct
22 Correct 3 ms 5036 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5036 KB Output is correct
25 Correct 3 ms 5044 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 4 ms 5040 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 3 ms 5076 KB Output is correct
3 Correct 3 ms 5036 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 5040 KB Output is correct
13 Correct 3 ms 5076 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 8 ms 5040 KB Output is correct
16 Correct 8 ms 5164 KB Output is correct
17 Correct 8 ms 5164 KB Output is correct
18 Correct 6 ms 5076 KB Output is correct
19 Correct 9 ms 5040 KB Output is correct
20 Correct 7 ms 5044 KB Output is correct
21 Correct 3 ms 5036 KB Output is correct
22 Correct 3 ms 5036 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5036 KB Output is correct
25 Correct 3 ms 5044 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 4 ms 5040 KB Output is correct
30 Correct 7 ms 5180 KB Output is correct
31 Correct 7 ms 5204 KB Output is correct
32 Correct 10 ms 5332 KB Output is correct
33 Correct 9 ms 5300 KB Output is correct
34 Correct 9 ms 5332 KB Output is correct
35 Correct 9 ms 5360 KB Output is correct
36 Correct 9 ms 5332 KB Output is correct
37 Correct 11 ms 5360 KB Output is correct
38 Correct 261 ms 5396 KB Output is correct
39 Correct 275 ms 5544 KB Output is correct
40 Correct 271 ms 5424 KB Output is correct
41 Correct 272 ms 5440 KB Output is correct
42 Correct 267 ms 5436 KB Output is correct
43 Correct 264 ms 5400 KB Output is correct
44 Correct 127 ms 5356 KB Output is correct
45 Correct 103 ms 5356 KB Output is correct
46 Correct 120 ms 5372 KB Output is correct
47 Correct 112 ms 5360 KB Output is correct
48 Correct 88 ms 5332 KB Output is correct
49 Correct 128 ms 5332 KB Output is correct
50 Correct 5 ms 5308 KB Output is correct
51 Correct 5 ms 5332 KB Output is correct
52 Correct 5 ms 5332 KB Output is correct
53 Correct 6 ms 5300 KB Output is correct
54 Correct 5 ms 5332 KB Output is correct
55 Correct 5 ms 5304 KB Output is correct
56 Correct 4 ms 5176 KB Output is correct
57 Correct 4 ms 5204 KB Output is correct
58 Correct 9 ms 5360 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 5076 KB Output is correct
2 Correct 2 ms 5036 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Execution timed out 5033 ms 14084 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 276 ms 9436 KB Output is correct
3 Correct 485 ms 9920 KB Output is correct
4 Correct 367 ms 10164 KB Output is correct
5 Correct 520 ms 12468 KB Output is correct
6 Correct 514 ms 12512 KB Output is correct
7 Correct 533 ms 12884 KB Output is correct
8 Correct 515 ms 12516 KB Output is correct
9 Correct 562 ms 12508 KB Output is correct
10 Correct 536 ms 12520 KB Output is correct
11 Correct 514 ms 12484 KB Output is correct
12 Correct 577 ms 12564 KB Output is correct
13 Correct 525 ms 12808 KB Output is correct
14 Correct 514 ms 13672 KB Output is correct
15 Correct 558 ms 16216 KB Output is correct
16 Correct 520 ms 12804 KB Output is correct
17 Correct 562 ms 12908 KB Output is correct
18 Correct 525 ms 12876 KB Output is correct
19 Execution timed out 5047 ms 11964 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #5
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5036 KB Output is correct
2 Correct 2 ms 5076 KB Output is correct
3 Correct 3 ms 5204 KB Output is correct
4 Correct 584 ms 12720 KB Output is correct
5 Correct 609 ms 12712 KB Output is correct
6 Correct 705 ms 14680 KB Output is correct
7 Correct 714 ms 15808 KB Output is correct
8 Correct 700 ms 15716 KB Output is correct
9 Correct 714 ms 15636 KB Output is correct
10 Correct 756 ms 15672 KB Output is correct
11 Correct 711 ms 15636 KB Output is correct
12 Correct 712 ms 15620 KB Output is correct
13 Correct 720 ms 15608 KB Output is correct
14 Correct 57 ms 9176 KB Output is correct

Subtask #6
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 5076 KB Output is correct
2 Correct 3 ms 5076 KB Output is correct
3 Correct 3 ms 5036 KB Output is correct
4 Correct 3 ms 5076 KB Output is correct
5 Correct 3 ms 5076 KB Output is correct
6 Correct 3 ms 5076 KB Output is correct
7 Correct 3 ms 5036 KB Output is correct
8 Correct 3 ms 5076 KB Output is correct
9 Correct 3 ms 5076 KB Output is correct
10 Correct 3 ms 5076 KB Output is correct
11 Correct 3 ms 5076 KB Output is correct
12 Correct 3 ms 5040 KB Output is correct
13 Correct 3 ms 5076 KB Output is correct
14 Correct 3 ms 5076 KB Output is correct
15 Correct 8 ms 5040 KB Output is correct
16 Correct 8 ms 5164 KB Output is correct
17 Correct 8 ms 5164 KB Output is correct
18 Correct 6 ms 5076 KB Output is correct
19 Correct 9 ms 5040 KB Output is correct
20 Correct 7 ms 5044 KB Output is correct
21 Correct 3 ms 5036 KB Output is correct
22 Correct 3 ms 5036 KB Output is correct
23 Correct 4 ms 5076 KB Output is correct
24 Correct 4 ms 5036 KB Output is correct
25 Correct 3 ms 5044 KB Output is correct
26 Correct 3 ms 5076 KB Output is correct
27 Correct 3 ms 5076 KB Output is correct
28 Correct 3 ms 5076 KB Output is correct
29 Correct 4 ms 5040 KB Output is correct
30 Correct 7 ms 5180 KB Output is correct
31 Correct 7 ms 5204 KB Output is correct
32 Correct 10 ms 5332 KB Output is correct
33 Correct 9 ms 5300 KB Output is correct
34 Correct 9 ms 5332 KB Output is correct
35 Correct 9 ms 5360 KB Output is correct
36 Correct 9 ms 5332 KB Output is correct
37 Correct 11 ms 5360 KB Output is correct
38 Correct 261 ms 5396 KB Output is correct
39 Correct 275 ms 5544 KB Output is correct
40 Correct 271 ms 5424 KB Output is correct
41 Correct 272 ms 5440 KB Output is correct
42 Correct 267 ms 5436 KB Output is correct
43 Correct 264 ms 5400 KB Output is correct
44 Correct 127 ms 5356 KB Output is correct
45 Correct 103 ms 5356 KB Output is correct
46 Correct 120 ms 5372 KB Output is correct
47 Correct 112 ms 5360 KB Output is correct
48 Correct 88 ms 5332 KB Output is correct
49 Correct 128 ms 5332 KB Output is correct
50 Correct 5 ms 5308 KB Output is correct
51 Correct 5 ms 5332 KB Output is correct
52 Correct 5 ms 5332 KB Output is correct
53 Correct 6 ms 5300 KB Output is correct
54 Correct 5 ms 5332 KB Output is correct
55 Correct 5 ms 5304 KB Output is correct
56 Correct 4 ms 5176 KB Output is correct
57 Correct 4 ms 5204 KB Output is correct
58 Correct 9 ms 5360 KB Output is correct
59 Correct 2 ms 5076 KB Output is correct
60 Correct 2 ms 5036 KB Output is correct
61 Correct 3 ms 5204 KB Output is correct
62 Execution timed out 5033 ms 14084 KB Time limit exceeded
63 Halted 0 ms 0 KB -