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Submission #1031859

# Submission time Handle Problem Language Result Execution time Memory
1031859 2024-07-23T08:09:02 Z juicy Examination (JOI19_examination) C++17
100 / 100
 170 ms 15756 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

const int N = 1e5 + 5;

struct Fenwick {
	int s[2 * N];

	void upd(int i) {
		for (; i; i -= i & -i) {
			++s[i];
		}
	} 

	int qry(int i) {
		int res = 0;
		for (; i < 2 * N; i += i & -i) {
			res += s[i];
		}
		return res;
	}
} ft[2];

int n, q;
int res[N];
array<int, 2> pt[N];

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

	cin >> n >> q;
	for (int i = 1; i <= n; ++i) {
		cin >> pt[i][0] >> pt[i][1];
	}	
	vector<array<int, 4>> Queries;
	array<vector<int>, 2> comp;
	for (int i = 1; i <= q; ++i) {
		int x, y, z; cin >> x >> y >> z;
		comp[0].push_back(y);
		comp[1].push_back(z);
		if (y < z - x) {
			Queries.push_back({x, z, i, 1});
			Queries.push_back({z - y, z, -i, 1});
			Queries.push_back({z - y, y, i, 0});
		} else {
			Queries.push_back({x, y, i, 0});
		}
	}	
	sort(Queries.rbegin(), Queries.rend());
	sort(pt + 1, pt + n + 1);
	for (int i = 1; i <= n; ++i) {
		comp[0].push_back(pt[i][1]);
		comp[1].push_back(pt[i][0] + pt[i][1]);
	}
	for (auto it : {0, 1}) {
		sort(comp[it].begin(), comp[it].end());
		comp[it].erase(unique(comp[it].begin(), comp[it].end()), comp[it].end());
	}
	auto getID = [](vector<int> &comp, int val) {
		return lower_bound(comp.begin(), comp.end(), val) - comp.begin() + 1;
	};
	int j = n;
	for (auto [x, y, id, type] : Queries) {
		while (j > 0 && pt[j][0] >= x) {
			int p = getID(comp[0], pt[j][1]);
			ft[0].upd(p);
			p = getID(comp[1], pt[j][0] + pt[j][1]);
			ft[1].upd(p);
			--j;
		}
		y = getID(comp[type], y);
		if (id > 0) {
			res[id] += ft[type].qry(y);
		} else {
			res[-id] -= ft[type].qry(y);
		}
	}
	for (int i = 1; i <= q; ++i) { 
		cout << res[i] << "\n";
	}
	return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 4 ms 604 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 3 ms 604 KB Output is correct
11 Correct 4 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Correct 3 ms 672 KB Output is correct
15 Correct 3 ms 604 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 3 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 109 ms 7216 KB Output is correct
2 Correct 104 ms 7168 KB Output is correct
3 Correct 104 ms 7192 KB Output is correct
4 Correct 66 ms 6932 KB Output is correct
5 Correct 71 ms 7100 KB Output is correct
6 Correct 48 ms 6588 KB Output is correct
7 Correct 90 ms 7360 KB Output is correct
8 Correct 85 ms 7072 KB Output is correct
9 Correct 92 ms 7104 KB Output is correct
10 Correct 75 ms 6928 KB Output is correct
11 Correct 58 ms 6592 KB Output is correct
12 Correct 48 ms 6340 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 109 ms 7216 KB Output is correct
2 Correct 104 ms 7168 KB Output is correct
3 Correct 104 ms 7192 KB Output is correct
4 Correct 66 ms 6932 KB Output is correct
5 Correct 71 ms 7100 KB Output is correct
6 Correct 48 ms 6588 KB Output is correct
7 Correct 90 ms 7360 KB Output is correct
8 Correct 85 ms 7072 KB Output is correct
9 Correct 92 ms 7104 KB Output is correct
10 Correct 75 ms 6928 KB Output is correct
11 Correct 58 ms 6592 KB Output is correct
12 Correct 48 ms 6340 KB Output is correct
13 Correct 138 ms 8484 KB Output is correct
14 Correct 127 ms 10416 KB Output is correct
15 Correct 104 ms 9840 KB Output is correct
16 Correct 103 ms 10736 KB Output is correct
17 Correct 107 ms 10472 KB Output is correct
18 Correct 71 ms 7828 KB Output is correct
19 Correct 129 ms 11808 KB Output is correct
20 Correct 124 ms 11048 KB Output is correct
21 Correct 149 ms 12784 KB Output is correct
22 Correct 75 ms 8896 KB Output is correct
23 Correct 59 ms 8404 KB Output is correct
24 Correct 53 ms 7356 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 4 ms 604 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Correct 3 ms 604 KB Output is correct
11 Correct 4 ms 604 KB Output is correct
12 Correct 2 ms 604 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Correct 3 ms 672 KB Output is correct
15 Correct 3 ms 604 KB Output is correct
16 Correct 2 ms 600 KB Output is correct
17 Correct 3 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct
19 Correct 109 ms 7216 KB Output is correct
20 Correct 104 ms 7168 KB Output is correct
21 Correct 104 ms 7192 KB Output is correct
22 Correct 66 ms 6932 KB Output is correct
23 Correct 71 ms 7100 KB Output is correct
24 Correct 48 ms 6588 KB Output is correct
25 Correct 90 ms 7360 KB Output is correct
26 Correct 85 ms 7072 KB Output is correct
27 Correct 92 ms 7104 KB Output is correct
28 Correct 75 ms 6928 KB Output is correct
29 Correct 58 ms 6592 KB Output is correct
30 Correct 48 ms 6340 KB Output is correct
31 Correct 138 ms 8484 KB Output is correct
32 Correct 127 ms 10416 KB Output is correct
33 Correct 104 ms 9840 KB Output is correct
34 Correct 103 ms 10736 KB Output is correct
35 Correct 107 ms 10472 KB Output is correct
36 Correct 71 ms 7828 KB Output is correct
37 Correct 129 ms 11808 KB Output is correct
38 Correct 124 ms 11048 KB Output is correct
39 Correct 149 ms 12784 KB Output is correct
40 Correct 75 ms 8896 KB Output is correct
41 Correct 59 ms 8404 KB Output is correct
42 Correct 53 ms 7356 KB Output is correct
43 Correct 150 ms 14052 KB Output is correct
44 Correct 154 ms 14644 KB Output is correct
45 Correct 129 ms 13092 KB Output is correct
46 Correct 103 ms 12264 KB Output is correct
47 Correct 124 ms 13044 KB Output is correct
48 Correct 92 ms 9812 KB Output is correct
49 Correct 161 ms 13780 KB Output is correct
50 Correct 144 ms 15088 KB Output is correct
51 Correct 170 ms 15756 KB Output is correct
52 Correct 133 ms 12784 KB Output is correct
53 Correct 58 ms 9448 KB Output is correct