oj.uz

Submission #255543

# Submission time Handle Problem Language Result Execution time Memory
255543 2020-08-01T08:10:14 Z islingr Examination (JOI19_examination) C++14
100 / 100
 399 ms 12912 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 tuple<int, int, int>(-x, y, -i) < tuple<int, int, int>(-p.x, p.y, -p.i);
	}
} 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 1 ms 384 KB Output is correct
2 Correct 0 ms 384 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 8 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 7 ms 640 KB Output is correct
11 Correct 6 ms 768 KB Output is correct
12 Correct 4 ms 640 KB Output is correct
13 Correct 6 ms 768 KB Output is correct
14 Correct 6 ms 768 KB Output is correct
15 Correct 6 ms 896 KB Output is correct
16 Correct 4 ms 768 KB Output is correct
17 Correct 7 ms 768 KB Output is correct
18 Correct 2 ms 640 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 226 ms 9396 KB Output is correct
2 Correct 241 ms 10736 KB Output is correct
3 Correct 226 ms 10736 KB Output is correct
4 Correct 209 ms 10764 KB Output is correct
5 Correct 152 ms 10736 KB Output is correct
6 Correct 94 ms 9580 KB Output is correct
7 Correct 220 ms 10612 KB Output is correct
8 Correct 217 ms 10732 KB Output is correct
9 Correct 204 ms 10608 KB Output is correct
10 Correct 123 ms 10380 KB Output is correct
11 Correct 188 ms 10520 KB Output is correct
12 Correct 86 ms 9248 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 226 ms 9396 KB Output is correct
2 Correct 241 ms 10736 KB Output is correct
3 Correct 226 ms 10736 KB Output is correct
4 Correct 209 ms 10764 KB Output is correct
5 Correct 152 ms 10736 KB Output is correct
6 Correct 94 ms 9580 KB Output is correct
7 Correct 220 ms 10612 KB Output is correct
8 Correct 217 ms 10732 KB Output is correct
9 Correct 204 ms 10608 KB Output is correct
10 Correct 123 ms 10380 KB Output is correct
11 Correct 188 ms 10520 KB Output is correct
12 Correct 86 ms 9248 KB Output is correct
13 Correct 377 ms 11120 KB Output is correct
14 Correct 349 ms 11520 KB Output is correct
15 Correct 239 ms 11112 KB Output is correct
16 Correct 326 ms 10832 KB Output is correct
17 Correct 251 ms 10864 KB Output is correct
18 Correct 111 ms 9584 KB Output is correct
19 Correct 353 ms 11596 KB Output is correct
20 Correct 340 ms 11504 KB Output is correct
21 Correct 350 ms 11248 KB Output is correct
22 Correct 120 ms 10480 KB Output is correct
23 Correct 187 ms 10480 KB Output is correct
24 Correct 72 ms 9200 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 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 8 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 7 ms 640 KB Output is correct
11 Correct 6 ms 768 KB Output is correct
12 Correct 4 ms 640 KB Output is correct
13 Correct 6 ms 768 KB Output is correct
14 Correct 6 ms 768 KB Output is correct
15 Correct 6 ms 896 KB Output is correct
16 Correct 4 ms 768 KB Output is correct
17 Correct 7 ms 768 KB Output is correct
18 Correct 2 ms 640 KB Output is correct
19 Correct 226 ms 9396 KB Output is correct
20 Correct 241 ms 10736 KB Output is correct
21 Correct 226 ms 10736 KB Output is correct
22 Correct 209 ms 10764 KB Output is correct
23 Correct 152 ms 10736 KB Output is correct
24 Correct 94 ms 9580 KB Output is correct
25 Correct 220 ms 10612 KB Output is correct
26 Correct 217 ms 10732 KB Output is correct
27 Correct 204 ms 10608 KB Output is correct
28 Correct 123 ms 10380 KB Output is correct
29 Correct 188 ms 10520 KB Output is correct
30 Correct 86 ms 9248 KB Output is correct
31 Correct 377 ms 11120 KB Output is correct
32 Correct 349 ms 11520 KB Output is correct
33 Correct 239 ms 11112 KB Output is correct
34 Correct 326 ms 10832 KB Output is correct
35 Correct 251 ms 10864 KB Output is correct
36 Correct 111 ms 9584 KB Output is correct
37 Correct 353 ms 11596 KB Output is correct
38 Correct 340 ms 11504 KB Output is correct
39 Correct 350 ms 11248 KB Output is correct
40 Correct 120 ms 10480 KB Output is correct
41 Correct 187 ms 10480 KB Output is correct
42 Correct 72 ms 9200 KB Output is correct
43 Correct 376 ms 12704 KB Output is correct
44 Correct 399 ms 12784 KB Output is correct
45 Correct 366 ms 12912 KB Output is correct
46 Correct 350 ms 12404 KB Output is correct
47 Correct 283 ms 12296 KB Output is correct
48 Correct 133 ms 9332 KB Output is correct
49 Correct 380 ms 12652 KB Output is correct
50 Correct 387 ms 12784 KB Output is correct
51 Correct 353 ms 12652 KB Output is correct
52 Correct 250 ms 12012 KB Output is correct
53 Correct 194 ms 11248 KB Output is correct