oj.uz

답안 #878389

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
878389 2023-11-24T09:44:39 Z TAhmed33 Tourism (JOI23_tourism) C++
28 / 100
 5000 ms 111700 KB 
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize ("Ofast")
const int MAXN = 4e5 + 25;
#define mid ((l + r) >> 1)
#define tl (node + 1)
#define tr (node + 2 * (mid - l + 1))
struct SegmentTree {
    int tree[2 * MAXN];
    void add (int l, int r, int a, int node) {
        if (l == r) {
            tree[node]++; return;
        }
        if (a <= mid) add(l, mid, a, tl);
        else add(mid + 1, r, a, tr);
        tree[node] = tree[tl] + tree[tr];
    }
    void rem (int l, int r, int a, int node) {
        if (l == r) {
            tree[node]--; return;
        }
        if (a <= mid) rem(l, mid, a, tl);
        else rem(mid + 1, r, a, tr);
        tree[node] = tree[tl] + tree[tr];
    }
    int get1 (int l, int r, int a, int node) {
        if (!tree[node] || r < a) return -1;
        if (l == r) return l;
        int x = get1(l, mid, a, tl);
        if (x != -1) return x;
        return get1(mid + 1, r, a, tr);
    }
    int get2 (int l, int r, int a, int node) {
        if (!tree[node] || l > a) return -1;
        if (l == r) return l;
        int x = get2(mid + 1, r, a, tr);
        if (x != -1) return x;
        return get2(l, mid, a, tl);
    }
    void insert (int x) {
        add(1, MAXN, x, 1);
    }
    void erase (int x) {
        rem(1, MAXN, x, 1);
    }
    int left (int x) {
        return get2(1, MAXN, x, 1);
    }
    int right (int x) {
        if (x == MAXN) return -1;
        return get1(1, MAXN, x + 1, 1);
    }
    bool empty () {
        return tree[1] == 0;
    }
} dd;
int in[MAXN], depth[MAXN], revin[MAXN];
pair <int, int> sparse[__lg(MAXN)][MAXN];
vector <int> adj[MAXN];
int n, m, q;
int cnt = 0;
void dfs (int pos, int par, int dep = 1) {
	depth[pos] = dep;
	sparse[0][++cnt] = {dep, pos};
	in[pos] = cnt; revin[cnt] = pos;
	for (auto j : adj[pos]) {
		if (j != par) {
			dfs(j, pos, dep + 1);
			sparse[0][++cnt] = {dep, pos};
		}
	}
}
int sparse2[__lg(MAXN)][MAXN];
int query (int l, int r) {
	if (l > r) swap(l, r);
	int x = __lg(r - l + 1);
	return min(sparse[x][l], sparse[x][r - (1 << x) + 1]).second;
}
int query2 (int l, int r) {
	int x = __lg(r - l + 1);
	return query(in[sparse2[x][l]], in[sparse2[x][r - (1 << x) + 1]]);
}
int arr[MAXN];
array <int, 3> queries[MAXN];
int ret[MAXN];
int ans = 0;
void add (int x) {
    ans += depth[x];
    int l = dd.left(in[x]), r = dd.right(in[x]);
	if (r != -1) ans -= depth[query(in[x], r)];
    if (l != -1) ans -= depth[query(l, in[x])];
    if (l != -1 && r != -1) ans += depth[query(l, r)];
	dd.insert(in[x]);
}
void rem (int x) {
    dd.erase(in[x]);
    ans -= depth[x];
    int l = dd.left(in[x]), r = dd.right(in[x]);
    if (r != -1) ans += depth[query(in[x], r)];
    if (l != -1) ans += depth[query(l, in[x])];
    if (l != -1 && r != -1) ans -= depth[query(l, r)];
}
int main () {
	ios::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m >> q;
	for (int i = 1; i < n; i++) {
		int a, b;
		cin >> a >> b;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	dfs(1, -1);
	for (int i = 1; i <= __lg(cnt); i++) {
		for (int j = 1; j + (1 << i) - 1 <= cnt; j++) {
			sparse[i][j] = min(sparse[i - 1][j], sparse[i - 1][j + (1 << (i - 1))]);
		}
	}
	for (int i = 1; i <= m; i++) {
		cin >> arr[i];
		sparse2[0][i] = arr[i];
	}
	for (int i = 1; i <= __lg(m); i++) {
		for (int j = 1; j + (1 << i) - 1 <= m; j++) {
			sparse2[i][j] = query(in[sparse2[i - 1][j]], in[sparse2[i - 1][j + (1 << (i - 1))]]);
		}
	}
	for (int i = 1; i <= q; i++) {
		cin >> queries[i][0] >> queries[i][1]; queries[i][2] = i;
	}
	int x = 450;
	sort(queries + 1, queries + q + 1, [&] (array <int, 3> &a, array <int, 3> &b) {
		return a[0] / x == b[0] / x ? a[1] < b[1] : a[0] / x < b[0] / x;
	});
	int l = queries[1][1] + 1, r = queries[1][1];
	for (int i = 1; i <= q; i++) {
		int tll = queries[i][0], trr = queries[i][1];
        while (l < tll) rem(arr[l++]);
        while (l > tll) add(arr[--l]);
        while (r < trr) add(arr[++r]);
		while (r > trr) rem(arr[r--]);
        ret[queries[i][2]] = ans - depth[query2(tll, trr)] + 1;
	}
	for (int i = 1; i <= q; i++) cout << ret[i] << '\n';
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 35160 KB Output is correct
2 Correct 6 ms 37212 KB Output is correct
3 Correct 5 ms 37372 KB Output is correct
4 Correct 10 ms 53596 KB Output is correct
5 Correct 9 ms 53832 KB Output is correct
6 Correct 9 ms 53596 KB Output is correct
7 Correct 9 ms 53596 KB Output is correct
8 Correct 9 ms 55644 KB Output is correct
9 Correct 12 ms 55644 KB Output is correct
10 Correct 11 ms 55640 KB Output is correct
11 Correct 12 ms 55644 KB Output is correct
12 Correct 8 ms 55884 KB Output is correct
13 Correct 8 ms 55856 KB Output is correct
14 Correct 8 ms 55644 KB Output is correct
15 Correct 11 ms 55864 KB Output is correct
16 Correct 12 ms 55640 KB Output is correct
17 Correct 11 ms 55644 KB Output is correct
18 Correct 11 ms 55640 KB Output is correct
19 Correct 11 ms 55644 KB Output is correct
20 Correct 11 ms 55880 KB Output is correct
21 Correct 12 ms 55644 KB Output is correct
22 Correct 12 ms 55816 KB Output is correct
23 Correct 11 ms 55644 KB Output is correct
24 Correct 12 ms 55644 KB Output is correct
25 Correct 12 ms 55644 KB Output is correct
26 Correct 11 ms 55884 KB Output is correct
27 Correct 9 ms 37212 KB Output is correct
28 Correct 6 ms 43356 KB Output is correct
29 Correct 7 ms 55640 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 35160 KB Output is correct
2 Correct 6 ms 37212 KB Output is correct
3 Correct 5 ms 37372 KB Output is correct
4 Correct 10 ms 53596 KB Output is correct
5 Correct 9 ms 53832 KB Output is correct
6 Correct 9 ms 53596 KB Output is correct
7 Correct 9 ms 53596 KB Output is correct
8 Correct 9 ms 55644 KB Output is correct
9 Correct 12 ms 55644 KB Output is correct
10 Correct 11 ms 55640 KB Output is correct
11 Correct 12 ms 55644 KB Output is correct
12 Correct 8 ms 55884 KB Output is correct
13 Correct 8 ms 55856 KB Output is correct
14 Correct 8 ms 55644 KB Output is correct
15 Correct 11 ms 55864 KB Output is correct
16 Correct 12 ms 55640 KB Output is correct
17 Correct 11 ms 55644 KB Output is correct
18 Correct 11 ms 55640 KB Output is correct
19 Correct 11 ms 55644 KB Output is correct
20 Correct 11 ms 55880 KB Output is correct
21 Correct 12 ms 55644 KB Output is correct
22 Correct 12 ms 55816 KB Output is correct
23 Correct 11 ms 55644 KB Output is correct
24 Correct 12 ms 55644 KB Output is correct
25 Correct 12 ms 55644 KB Output is correct
26 Correct 11 ms 55884 KB Output is correct
27 Correct 9 ms 37212 KB Output is correct
28 Correct 6 ms 43356 KB Output is correct
29 Correct 7 ms 55640 KB Output is correct
30 Correct 57 ms 64092 KB Output is correct
31 Correct 77 ms 64348 KB Output is correct
32 Correct 90 ms 64128 KB Output is correct
33 Correct 89 ms 64088 KB Output is correct
34 Correct 80 ms 64144 KB Output is correct
35 Correct 15 ms 64092 KB Output is correct
36 Correct 15 ms 64152 KB Output is correct
37 Correct 15 ms 64092 KB Output is correct
38 Correct 79 ms 64092 KB Output is correct
39 Correct 80 ms 64172 KB Output is correct
40 Correct 81 ms 64088 KB Output is correct
41 Correct 14 ms 64088 KB Output is correct
42 Correct 14 ms 64204 KB Output is correct
43 Correct 14 ms 64088 KB Output is correct
44 Correct 81 ms 64156 KB Output is correct
45 Correct 81 ms 64144 KB Output is correct
46 Correct 85 ms 64152 KB Output is correct
47 Correct 15 ms 64088 KB Output is correct
48 Correct 14 ms 64092 KB Output is correct
49 Correct 14 ms 64120 KB Output is correct
50 Correct 83 ms 64136 KB Output is correct
51 Correct 79 ms 64088 KB Output is correct
52 Correct 81 ms 64092 KB Output is correct
53 Correct 79 ms 64388 KB Output is correct
54 Correct 81 ms 64140 KB Output is correct
55 Correct 82 ms 64144 KB Output is correct
56 Correct 49 ms 41304 KB Output is correct
57 Correct 7 ms 47708 KB Output is correct
58 Correct 10 ms 64044 KB Output is correct

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 37208 KB Output is correct
2 Correct 9 ms 37212 KB Output is correct
3 Correct 49 ms 41508 KB Output is correct
4 Execution timed out 5079 ms 102396 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 35164 KB Output is correct
2 Correct 83 ms 99132 KB Output is correct
3 Correct 119 ms 101332 KB Output is correct
4 Correct 100 ms 105700 KB Output is correct
5 Correct 103 ms 109496 KB Output is correct
6 Correct 135 ms 109500 KB Output is correct
7 Correct 157 ms 110388 KB Output is correct
8 Correct 155 ms 110160 KB Output is correct
9 Correct 165 ms 109652 KB Output is correct
10 Correct 155 ms 109396 KB Output is correct
11 Correct 152 ms 109500 KB Output is correct
12 Correct 153 ms 109648 KB Output is correct
13 Correct 151 ms 109564 KB Output is correct
14 Correct 127 ms 110392 KB Output is correct
15 Correct 121 ms 111700 KB Output is correct
16 Correct 149 ms 109820 KB Output is correct
17 Correct 142 ms 109392 KB Output is correct
18 Correct 144 ms 109496 KB Output is correct
19 Correct 104 ms 110344 KB Output is correct
20 Correct 124 ms 110336 KB Output is correct
21 Correct 133 ms 109396 KB Output is correct
22 Correct 141 ms 109304 KB Output is correct
23 Correct 142 ms 109648 KB Output is correct
24 Correct 149 ms 110328 KB Output is correct
25 Correct 149 ms 110264 KB Output is correct
26 Correct 162 ms 109460 KB Output is correct
27 Correct 150 ms 109392 KB Output is correct
28 Correct 147 ms 109392 KB Output is correct
29 Correct 147 ms 109444 KB Output is correct
30 Correct 142 ms 109396 KB Output is correct
31 Correct 134 ms 109392 KB Output is correct
32 Correct 128 ms 110408 KB Output is correct
33 Correct 124 ms 109796 KB Output is correct
34 Correct 113 ms 111700 KB Output is correct

Subtask #5
0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 35164 KB Output is correct
2 Correct 8 ms 37412 KB Output is correct
3 Correct 50 ms 41304 KB Output is correct
4 Execution timed out 5033 ms 102992 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 35160 KB Output is correct
2 Correct 6 ms 37212 KB Output is correct
3 Correct 5 ms 37372 KB Output is correct
4 Correct 10 ms 53596 KB Output is correct
5 Correct 9 ms 53832 KB Output is correct
6 Correct 9 ms 53596 KB Output is correct
7 Correct 9 ms 53596 KB Output is correct
8 Correct 9 ms 55644 KB Output is correct
9 Correct 12 ms 55644 KB Output is correct
10 Correct 11 ms 55640 KB Output is correct
11 Correct 12 ms 55644 KB Output is correct
12 Correct 8 ms 55884 KB Output is correct
13 Correct 8 ms 55856 KB Output is correct
14 Correct 8 ms 55644 KB Output is correct
15 Correct 11 ms 55864 KB Output is correct
16 Correct 12 ms 55640 KB Output is correct
17 Correct 11 ms 55644 KB Output is correct
18 Correct 11 ms 55640 KB Output is correct
19 Correct 11 ms 55644 KB Output is correct
20 Correct 11 ms 55880 KB Output is correct
21 Correct 12 ms 55644 KB Output is correct
22 Correct 12 ms 55816 KB Output is correct
23 Correct 11 ms 55644 KB Output is correct
24 Correct 12 ms 55644 KB Output is correct
25 Correct 12 ms 55644 KB Output is correct
26 Correct 11 ms 55884 KB Output is correct
27 Correct 9 ms 37212 KB Output is correct
28 Correct 6 ms 43356 KB Output is correct
29 Correct 7 ms 55640 KB Output is correct
30 Correct 57 ms 64092 KB Output is correct
31 Correct 77 ms 64348 KB Output is correct
32 Correct 90 ms 64128 KB Output is correct
33 Correct 89 ms 64088 KB Output is correct
34 Correct 80 ms 64144 KB Output is correct
35 Correct 15 ms 64092 KB Output is correct
36 Correct 15 ms 64152 KB Output is correct
37 Correct 15 ms 64092 KB Output is correct
38 Correct 79 ms 64092 KB Output is correct
39 Correct 80 ms 64172 KB Output is correct
40 Correct 81 ms 64088 KB Output is correct
41 Correct 14 ms 64088 KB Output is correct
42 Correct 14 ms 64204 KB Output is correct
43 Correct 14 ms 64088 KB Output is correct
44 Correct 81 ms 64156 KB Output is correct
45 Correct 81 ms 64144 KB Output is correct
46 Correct 85 ms 64152 KB Output is correct
47 Correct 15 ms 64088 KB Output is correct
48 Correct 14 ms 64092 KB Output is correct
49 Correct 14 ms 64120 KB Output is correct
50 Correct 83 ms 64136 KB Output is correct
51 Correct 79 ms 64088 KB Output is correct
52 Correct 81 ms 64092 KB Output is correct
53 Correct 79 ms 64388 KB Output is correct
54 Correct 81 ms 64140 KB Output is correct
55 Correct 82 ms 64144 KB Output is correct
56 Correct 49 ms 41304 KB Output is correct
57 Correct 7 ms 47708 KB Output is correct
58 Correct 10 ms 64044 KB Output is correct
59 Correct 5 ms 37208 KB Output is correct
60 Correct 9 ms 37212 KB Output is correct
61 Correct 49 ms 41508 KB Output is correct
62 Execution timed out 5079 ms 102396 KB Time limit exceeded
63 Halted 0 ms 0 KB -