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Submission #292491

# Submission time Handle Problem Language Result Execution time Memory
292491 2020-09-07T06:12:25 Z Berted Examination (JOI19_examination) C++14
100 / 100
 719 ms 27120 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#define pii pair<int, int>
#define fst first
#define snd second
#define pip pair<int, pii>
#define ppp pair<pii, pii>
using namespace std;

const int INF = 1e9;

struct DS
{
	vector<int> C, A;
	DS() {C.push_back(-1);}
	void addPoint(int x) {C.push_back(x);}
	void prepDS()
	{
		sort(C.begin(), C.end());
		C.resize(unique(C.begin(), C.end()) - C.begin());
		A.resize(C.size());
	}
	void update(int x, int v)
	{
		auto it = prev(upper_bound(C.begin(), C.end(), x)) - C.begin();
		for (; it < A.size(); it += it & (-it)) {A[it] += v;}
	}
	int query(int x)
	{
		auto it = prev(upper_bound(C.begin(), C.end(), x)) - C.begin(); int ret = 0;
		for (; it; it -= it & (-it)) {ret += A[it];}
		return ret;
	}
};

namespace DS2
{
	vector<int> C;
	DS A[100001];
	void addPoint(int x) {C.push_back(x);}
	void prepDS()
	{
		C.push_back(-1);
		sort(C.begin(), C.end());
		C.resize(unique(C.begin(), C.end()) - C.begin());
	}
	void addPoint2(int x, int y)
	{
		auto it = prev(upper_bound(C.begin(), C.end(), x)) - C.begin();
		for (; it < C.size(); it += it & (-it)) {A[it].addPoint(y);}
	}
	void prepDS2()
	{
		for (int i = 0; i < C.size(); i++) {A[i].prepDS();}
	}
	void update(int x, int y, int v)
	{
		auto it = prev(upper_bound(C.begin(), C.end(), x)) - C.begin();
		for (; it < C.size(); it += it & (-it)) {A[it].update(y, v);}
	}
	int query(int x, int y)
	{
		auto it = prev(upper_bound(C.begin(), C.end(), x)) - C.begin(); int ret = 0;
		for (; it; it -= it & (-it)) {ret += A[it].query(y);}
		return ret;
	}
}

int N, Q;
pip A[100001];
ppp B[100001];
int ans[100001];

int main()
{
	ios :: sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> N >> Q;
	
	DS2 :: addPoint(-1);
	for (int i = 0; i < N; i++)
	{
		cin >> A[i].snd.fst >> A[i].snd.snd;
		A[i].fst = -(A[i].snd.fst + A[i].snd.snd);
		DS2 :: addPoint(A[i].snd.fst);
	}
	DS2 :: prepDS();
	
	for (int i = 0; i < N; i++)
	{
		DS2 :: addPoint2(A[i].snd.fst, A[i].snd.snd);
	}
	DS2 :: prepDS2();

	sort(A, A + N);

	for (int i = 0; i < Q; i++) 
	{
		cin >> B[i].snd.fst >> B[i].snd.snd >> B[i].fst.fst; 
		B[i].fst.snd = i;
		B[i].fst.fst = -B[i].fst.fst;
	}
	sort(B, B + Q);

	int j = 0;
	for (int i = 0; i < Q; i++)
	{
		for (; j < N && A[j].fst <= B[i].fst.fst; j++) 
		{
			DS2 :: update(A[j].snd.fst, A[j].snd.snd, 1);
		}
		ans[B[i].fst.snd] += DS2 :: query(INF, INF);
		ans[B[i].fst.snd] -= DS2 :: query(B[i].snd.fst - 1, INF);
		ans[B[i].fst.snd] -= DS2 :: query(INF, B[i].snd.snd - 1);
		ans[B[i].fst.snd] += DS2 :: query(B[i].snd.fst - 1, B[i].snd.snd - 1);
	}

	for (int i = 0; i < Q; i++)
	{
		cout << ans[i] << "\n";
	}

	return 0;
}

Compilation message

examination.cpp: In member function 'void DS::update(int, int)':
examination.cpp:27:13: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |   for (; it < A.size(); it += it & (-it)) {A[it] += v;}
      |          ~~~^~~~~~~~~~
examination.cpp: In function 'void DS2::addPoint2(int, int)':
examination.cpp:51:13: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   51 |   for (; it < C.size(); it += it & (-it)) {A[it].addPoint(y);}
      |          ~~~^~~~~~~~~~
examination.cpp: In function 'void DS2::prepDS2()':
examination.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |   for (int i = 0; i < C.size(); i++) {A[i].prepDS();}
      |                   ~~^~~~~~~~~~
examination.cpp: In function 'void DS2::update(int, int, int)':
examination.cpp:60:13: warning: comparison of integer expressions of different signedness: 'long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |   for (; it < C.size(); it += it & (-it)) {A[it].update(y, v);}
      |          ~~~^~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 8192 KB Output is correct
2 Correct 9 ms 8192 KB Output is correct
3 Correct 10 ms 8192 KB Output is correct
4 Correct 9 ms 8192 KB Output is correct
5 Correct 9 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 20 ms 8652 KB Output is correct
8 Correct 19 ms 8704 KB Output is correct
9 Correct 20 ms 8704 KB Output is correct
10 Correct 16 ms 8576 KB Output is correct
11 Correct 17 ms 8448 KB Output is correct
12 Correct 13 ms 8448 KB Output is correct
13 Correct 20 ms 8680 KB Output is correct
14 Correct 19 ms 8700 KB Output is correct
15 Correct 20 ms 8704 KB Output is correct
16 Correct 14 ms 8448 KB Output is correct
17 Correct 14 ms 8648 KB Output is correct
18 Correct 12 ms 8320 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 633 ms 22600 KB Output is correct
2 Correct 626 ms 22240 KB Output is correct
3 Correct 661 ms 22256 KB Output is correct
4 Correct 304 ms 19604 KB Output is correct
5 Correct 206 ms 15912 KB Output is correct
6 Correct 108 ms 14828 KB Output is correct
7 Correct 535 ms 22240 KB Output is correct
8 Correct 604 ms 22332 KB Output is correct
9 Correct 516 ms 22408 KB Output is correct
10 Correct 115 ms 14448 KB Output is correct
11 Correct 238 ms 19184 KB Output is correct
12 Correct 68 ms 13424 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 633 ms 22600 KB Output is correct
2 Correct 626 ms 22240 KB Output is correct
3 Correct 661 ms 22256 KB Output is correct
4 Correct 304 ms 19604 KB Output is correct
5 Correct 206 ms 15912 KB Output is correct
6 Correct 108 ms 14828 KB Output is correct
7 Correct 535 ms 22240 KB Output is correct
8 Correct 604 ms 22332 KB Output is correct
9 Correct 516 ms 22408 KB Output is correct
10 Correct 115 ms 14448 KB Output is correct
11 Correct 238 ms 19184 KB Output is correct
12 Correct 68 ms 13424 KB Output is correct
13 Correct 679 ms 22256 KB Output is correct
14 Correct 649 ms 23020 KB Output is correct
15 Correct 643 ms 22760 KB Output is correct
16 Correct 328 ms 20080 KB Output is correct
17 Correct 214 ms 16368 KB Output is correct
18 Correct 106 ms 14836 KB Output is correct
19 Correct 671 ms 23152 KB Output is correct
20 Correct 653 ms 23024 KB Output is correct
21 Correct 616 ms 23024 KB Output is correct
22 Correct 115 ms 14572 KB Output is correct
23 Correct 238 ms 19184 KB Output is correct
24 Correct 81 ms 13424 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 8192 KB Output is correct
2 Correct 9 ms 8192 KB Output is correct
3 Correct 10 ms 8192 KB Output is correct
4 Correct 9 ms 8192 KB Output is correct
5 Correct 9 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 20 ms 8652 KB Output is correct
8 Correct 19 ms 8704 KB Output is correct
9 Correct 20 ms 8704 KB Output is correct
10 Correct 16 ms 8576 KB Output is correct
11 Correct 17 ms 8448 KB Output is correct
12 Correct 13 ms 8448 KB Output is correct
13 Correct 20 ms 8680 KB Output is correct
14 Correct 19 ms 8700 KB Output is correct
15 Correct 20 ms 8704 KB Output is correct
16 Correct 14 ms 8448 KB Output is correct
17 Correct 14 ms 8648 KB Output is correct
18 Correct 12 ms 8320 KB Output is correct
19 Correct 633 ms 22600 KB Output is correct
20 Correct 626 ms 22240 KB Output is correct
21 Correct 661 ms 22256 KB Output is correct
22 Correct 304 ms 19604 KB Output is correct
23 Correct 206 ms 15912 KB Output is correct
24 Correct 108 ms 14828 KB Output is correct
25 Correct 535 ms 22240 KB Output is correct
26 Correct 604 ms 22332 KB Output is correct
27 Correct 516 ms 22408 KB Output is correct
28 Correct 115 ms 14448 KB Output is correct
29 Correct 238 ms 19184 KB Output is correct
30 Correct 68 ms 13424 KB Output is correct
31 Correct 679 ms 22256 KB Output is correct
32 Correct 649 ms 23020 KB Output is correct
33 Correct 643 ms 22760 KB Output is correct
34 Correct 328 ms 20080 KB Output is correct
35 Correct 214 ms 16368 KB Output is correct
36 Correct 106 ms 14836 KB Output is correct
37 Correct 671 ms 23152 KB Output is correct
38 Correct 653 ms 23024 KB Output is correct
39 Correct 616 ms 23024 KB Output is correct
40 Correct 115 ms 14572 KB Output is correct
41 Correct 238 ms 19184 KB Output is correct
42 Correct 81 ms 13424 KB Output is correct
43 Correct 717 ms 27068 KB Output is correct
44 Correct 719 ms 26864 KB Output is correct
45 Correct 700 ms 26992 KB Output is correct
46 Correct 360 ms 23920 KB Output is correct
47 Correct 223 ms 17524 KB Output is correct
48 Correct 106 ms 14576 KB Output is correct
49 Correct 596 ms 27120 KB Output is correct
50 Correct 674 ms 26908 KB Output is correct
51 Correct 558 ms 26992 KB Output is correct
52 Correct 134 ms 16364 KB Output is correct
53 Correct 288 ms 22764 KB Output is correct