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Submission #255545

# Submission time Handle Problem Language Result Execution time Memory
255545 2020-08-01T08:10:47 Z islingr Examination (JOI19_examination) C++14
100 / 100
 491 ms 11120 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
#define sz(x) int((x).size())
#define eb(x...) emplace_back(x)
#define lb(x...) lower_bound(x)
#define all(x) begin(x), end(x)

const int N = 1 << 17;
 
int n, m;
int t[4 * N];
int query(int l, int r) {
	int sum = 0;
	for (l += m, r += m; l < r; l >>= 1, r >>= 1) {
		if (l & 1) sum += t[l++];
		if (r & 1) sum += t[--r];
	}
	return sum;
}
void update(int p, int x) {
	for (t[p += m] += x; p >>= 1; ) t[p] = t[p << 1] + t[p << 1|1];
}

struct P {
	int x, y, z, i;
	bool operator<(const P &p) {
		return pair<int, int>(-x, y) < pair<int, int>(-p.x, p.y);
	}
} a[2 * N], tmp[2 * N];
int ans[N];

void cdq(int l, int r) {
	if (r - l == 1) return;
	int m = (l + r) / 2;
	cdq(l, m); cdq(m, r);
	vector<int> op;
	int i = l, j = m, k = l, cnt = 0;
	while (i < m && j < r)
		if (a[j].y < a[i].y) {
			if (!a[i].i) ++cnt, update(a[i].z, 1), op.eb(a[i].z);
			tmp[k++] = a[i++];
		} else {
			if (a[j].i) ans[a[j].i] += cnt - query(0, a[j].z);
			tmp[k++] = a[j++];
		}
	while (i < m) tmp[k++] = a[i++];
	while (j < r) {
		if (a[j].i) ans[a[j].i] += cnt - query(0, a[j].z);
		tmp[k++] = a[j++];
	}
	rep(i, l, r) a[i] = tmp[i];
	for (int p : op) update(p, -1);
}

int main() {
	ios::sync_with_stdio(false);
	cin.tie(nullptr);

	vector<int> cmp;
	int q; cin >> n >> q;
	rep(i, 0, n) {
		int x, y; cin >> x >> y;
		a[i] = {x, y, x + y, 0};
		cmp.eb(x + y);
	}
	rep(i, 0, q) {
		int x, y, z; cin >> x >> y >> z; --x; --y;
		a[i + n] = {x, y, z, i + 1};
		cmp.eb(z);
	}
	sort(all(cmp)); cmp.resize(m = unique(all(cmp)) - begin(cmp));
	rep(i, 0, n + q) a[i].z = lb(all(cmp), a[i].z) - begin(cmp);
	sort(a, a + n + q); cdq(0, n + q);
	rep(i, 0, q) cout << ans[i + 1] << '\n';
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 9 ms 640 KB Output is correct
8 Correct 8 ms 640 KB Output is correct
9 Correct 8 ms 640 KB Output is correct
10 Correct 8 ms 640 KB Output is correct
11 Correct 7 ms 640 KB Output is correct
12 Correct 4 ms 640 KB Output is correct
13 Correct 6 ms 640 KB Output is correct
14 Correct 6 ms 640 KB Output is correct
15 Correct 6 ms 640 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 7 ms 768 KB Output is correct
18 Correct 3 ms 640 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 239 ms 9472 KB Output is correct
2 Correct 234 ms 9456 KB Output is correct
3 Correct 268 ms 9448 KB Output is correct
4 Correct 216 ms 9320 KB Output is correct
5 Correct 150 ms 9328 KB Output is correct
6 Correct 91 ms 8816 KB Output is correct
7 Correct 217 ms 9200 KB Output is correct
8 Correct 237 ms 9412 KB Output is correct
9 Correct 221 ms 9224 KB Output is correct
10 Correct 132 ms 9060 KB Output is correct
11 Correct 218 ms 9196 KB Output is correct
12 Correct 91 ms 8556 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 239 ms 9472 KB Output is correct
2 Correct 234 ms 9456 KB Output is correct
3 Correct 268 ms 9448 KB Output is correct
4 Correct 216 ms 9320 KB Output is correct
5 Correct 150 ms 9328 KB Output is correct
6 Correct 91 ms 8816 KB Output is correct
7 Correct 217 ms 9200 KB Output is correct
8 Correct 237 ms 9412 KB Output is correct
9 Correct 221 ms 9224 KB Output is correct
10 Correct 132 ms 9060 KB Output is correct
11 Correct 218 ms 9196 KB Output is correct
12 Correct 91 ms 8556 KB Output is correct
13 Correct 374 ms 9820 KB Output is correct
14 Correct 386 ms 9840 KB Output is correct
15 Correct 245 ms 9456 KB Output is correct
16 Correct 320 ms 9552 KB Output is correct
17 Correct 260 ms 9584 KB Output is correct
18 Correct 109 ms 8940 KB Output is correct
19 Correct 343 ms 9836 KB Output is correct
20 Correct 340 ms 9712 KB Output is correct
21 Correct 335 ms 9584 KB Output is correct
22 Correct 132 ms 9068 KB Output is correct
23 Correct 198 ms 9224 KB Output is correct
24 Correct 75 ms 8684 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 288 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 9 ms 640 KB Output is correct
8 Correct 8 ms 640 KB Output is correct
9 Correct 8 ms 640 KB Output is correct
10 Correct 8 ms 640 KB Output is correct
11 Correct 7 ms 640 KB Output is correct
12 Correct 4 ms 640 KB Output is correct
13 Correct 6 ms 640 KB Output is correct
14 Correct 6 ms 640 KB Output is correct
15 Correct 6 ms 640 KB Output is correct
16 Correct 5 ms 640 KB Output is correct
17 Correct 7 ms 768 KB Output is correct
18 Correct 3 ms 640 KB Output is correct
19 Correct 239 ms 9472 KB Output is correct
20 Correct 234 ms 9456 KB Output is correct
21 Correct 268 ms 9448 KB Output is correct
22 Correct 216 ms 9320 KB Output is correct
23 Correct 150 ms 9328 KB Output is correct
24 Correct 91 ms 8816 KB Output is correct
25 Correct 217 ms 9200 KB Output is correct
26 Correct 237 ms 9412 KB Output is correct
27 Correct 221 ms 9224 KB Output is correct
28 Correct 132 ms 9060 KB Output is correct
29 Correct 218 ms 9196 KB Output is correct
30 Correct 91 ms 8556 KB Output is correct
31 Correct 374 ms 9820 KB Output is correct
32 Correct 386 ms 9840 KB Output is correct
33 Correct 245 ms 9456 KB Output is correct
34 Correct 320 ms 9552 KB Output is correct
35 Correct 260 ms 9584 KB Output is correct
36 Correct 109 ms 8940 KB Output is correct
37 Correct 343 ms 9836 KB Output is correct
38 Correct 340 ms 9712 KB Output is correct
39 Correct 335 ms 9584 KB Output is correct
40 Correct 132 ms 9068 KB Output is correct
41 Correct 198 ms 9224 KB Output is correct
42 Correct 75 ms 8684 KB Output is correct
43 Correct 426 ms 11120 KB Output is correct
44 Correct 393 ms 11020 KB Output is correct
45 Correct 396 ms 11080 KB Output is correct
46 Correct 491 ms 10864 KB Output is correct
47 Correct 299 ms 11000 KB Output is correct
48 Correct 135 ms 8944 KB Output is correct
49 Correct 360 ms 10860 KB Output is correct
50 Correct 405 ms 10988 KB Output is correct
51 Correct 390 ms 10864 KB Output is correct
52 Correct 255 ms 10736 KB Output is correct
53 Correct 221 ms 9840 KB Output is correct