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Submission #255402

# Submission time Handle Problem Language Result Execution time Memory
255402 2020-07-31T21:26:37 Z islingr Examination (JOI19_examination) C++14
100 / 100
 382 ms 11888 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)
 
using ll = int64_t;
 
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, idx;
	bool operator<(const P &p) {
		return tuple<int, int, int>(-x, y, z) < tuple<int, int, int>(-p.x, p.y, p.z);
	}
} 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].idx) ++cnt, update(a[i].z, 1), op.eb(a[i].z);
			tmp[k++] = a[i++];
		} else {
			if (a[j].idx) ans[a[j].idx] += cnt - query(0, a[j].z);
			tmp[k++] = a[j++];
		}
	}
	while (i < m) tmp[k++] = a[i++];
	while (j < r) {
		if (a[j].idx) ans[a[j].idx] += 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;
		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 1 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 1 ms 384 KB Output is correct
7 Correct 11 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 640 KB Output is correct
12 Correct 3 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 225 ms 9456 KB Output is correct
2 Correct 232 ms 9456 KB Output is correct
3 Correct 319 ms 9504 KB Output is correct
4 Correct 204 ms 9368 KB Output is correct
5 Correct 146 ms 9324 KB Output is correct
6 Correct 88 ms 8812 KB Output is correct
7 Correct 227 ms 9964 KB Output is correct
8 Correct 223 ms 10096 KB Output is correct
9 Correct 214 ms 9968 KB Output is correct
10 Correct 127 ms 9712 KB Output is correct
11 Correct 191 ms 9840 KB Output is correct
12 Correct 70 ms 9072 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 225 ms 9456 KB Output is correct
2 Correct 232 ms 9456 KB Output is correct
3 Correct 319 ms 9504 KB Output is correct
4 Correct 204 ms 9368 KB Output is correct
5 Correct 146 ms 9324 KB Output is correct
6 Correct 88 ms 8812 KB Output is correct
7 Correct 227 ms 9964 KB Output is correct
8 Correct 223 ms 10096 KB Output is correct
9 Correct 214 ms 9968 KB Output is correct
10 Correct 127 ms 9712 KB Output is correct
11 Correct 191 ms 9840 KB Output is correct
12 Correct 70 ms 9072 KB Output is correct
13 Correct 349 ms 10416 KB Output is correct
14 Correct 333 ms 10988 KB Output is correct
15 Correct 222 ms 10480 KB Output is correct
16 Correct 320 ms 10352 KB Output is correct
17 Correct 258 ms 10208 KB Output is correct
18 Correct 95 ms 9452 KB Output is correct
19 Correct 346 ms 11120 KB Output is correct
20 Correct 342 ms 10988 KB Output is correct
21 Correct 355 ms 10860 KB Output is correct
22 Correct 126 ms 9708 KB Output is correct
23 Correct 196 ms 9844 KB Output is correct
24 Correct 63 ms 9196 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 1 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 1 ms 384 KB Output is correct
7 Correct 11 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 640 KB Output is correct
12 Correct 3 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 225 ms 9456 KB Output is correct
20 Correct 232 ms 9456 KB Output is correct
21 Correct 319 ms 9504 KB Output is correct
22 Correct 204 ms 9368 KB Output is correct
23 Correct 146 ms 9324 KB Output is correct
24 Correct 88 ms 8812 KB Output is correct
25 Correct 227 ms 9964 KB Output is correct
26 Correct 223 ms 10096 KB Output is correct
27 Correct 214 ms 9968 KB Output is correct
28 Correct 127 ms 9712 KB Output is correct
29 Correct 191 ms 9840 KB Output is correct
30 Correct 70 ms 9072 KB Output is correct
31 Correct 349 ms 10416 KB Output is correct
32 Correct 333 ms 10988 KB Output is correct
33 Correct 222 ms 10480 KB Output is correct
34 Correct 320 ms 10352 KB Output is correct
35 Correct 258 ms 10208 KB Output is correct
36 Correct 95 ms 9452 KB Output is correct
37 Correct 346 ms 11120 KB Output is correct
38 Correct 342 ms 10988 KB Output is correct
39 Correct 355 ms 10860 KB Output is correct
40 Correct 126 ms 9708 KB Output is correct
41 Correct 196 ms 9844 KB Output is correct
42 Correct 63 ms 9196 KB Output is correct
43 Correct 382 ms 11888 KB Output is correct
44 Correct 374 ms 11760 KB Output is correct
45 Correct 365 ms 11632 KB Output is correct
46 Correct 344 ms 11756 KB Output is correct
47 Correct 276 ms 11756 KB Output is correct
48 Correct 105 ms 9324 KB Output is correct
49 Correct 361 ms 11508 KB Output is correct
50 Correct 370 ms 11616 KB Output is correct
51 Correct 352 ms 11500 KB Output is correct
52 Correct 257 ms 11640 KB Output is correct
53 Correct 191 ms 10604 KB Output is correct