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Submission #205862

# Submission time Handle Problem Language Result Execution time Memory
205862 2020-03-01T08:23:43 Z mraron Examination (JOI19_examination) C++14
100 / 100
 854 ms 16728 KB 
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
struct ev {
	int a,b,c;
	int is_q;
	int id;
};
int ans[100001];

void dc2(vector<ev>& t, int L, int R) {
	if(L>=R) return ;
	int mid=(L+R)/2;
	vector<int> lst;
	for(int i=mid+1;i<=R;++i) {
		if(!t[i].is_q) lst.pb(t[i].c);
	}
	sort(lst.begin(),lst.end());
	for(int i=L;i<=mid;++i) {
		if(t[i].is_q) {
			auto it=lower_bound(lst.begin(), lst.end(), t[i].c);
			ans[t[i].id]+=lst.end()-it;
		}
	}
	dc2(t, L, mid);
	dc2(t, mid+1, R);
}

void dc1(vector<ev>& t, int L, int R) {
	if(L>=R) return ;
	int mid=(L+R)/2;
	vector<ev> arr;
	for(int i=L;i<=mid;++i) {
		if(t[i].is_q) arr.pb(t[i]);
	}
	for(int i=mid+1;i<=R;++i) {
		if(!t[i].is_q) arr.pb(t[i]);
	}
	sort(arr.begin(),arr.end(), [&](ev a, ev b) -> bool {
		if(a.b==b.b) return a.is_q>b.is_q;
		return a.b<b.b;
	});
	
	dc2(arr, 0, (int)arr.size()-1);
	
	dc1(t, L, mid);
	dc1(t, mid+1, R);
}

int main() {
	int n,q;
	cin>>n>>q;
	vector<ev> lst;
	for(int i=0;i<n;++i) {
		int a,b;
		cin>>a>>b;
		lst.push_back({a,b,a+b,0,-1});
	}
	for(int i=0;i<q;++i) {
		int a,b,c;
		cin>>a>>b>>c;
		lst.push_back({a,b,c,1,i});
	}
	sort(lst.begin(), lst.end(), [&](ev a, ev b) -> bool {
		if(a.a==b.a) return a.is_q>b.is_q;
		return a.a<b.a;
	});
	dc1(lst, 0, (int)lst.size()-1);
	for(int i=0;i<q;++i) cout<<ans[i]<<"\n";
	return 0;
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 23 ms 808 KB Output is correct
8 Correct 23 ms 728 KB Output is correct
9 Correct 24 ms 760 KB Output is correct
10 Correct 20 ms 728 KB Output is correct
11 Correct 20 ms 728 KB Output is correct
12 Correct 15 ms 688 KB Output is correct
13 Correct 21 ms 728 KB Output is correct
14 Correct 21 ms 732 KB Output is correct
15 Correct 21 ms 728 KB Output is correct
16 Correct 16 ms 728 KB Output is correct
17 Correct 19 ms 728 KB Output is correct
18 Correct 13 ms 632 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 686 ms 11868 KB Output is correct
2 Correct 687 ms 12012 KB Output is correct
3 Correct 678 ms 11864 KB Output is correct
4 Correct 578 ms 10900 KB Output is correct
5 Correct 516 ms 11664 KB Output is correct
6 Correct 399 ms 10840 KB Output is correct
7 Correct 643 ms 14300 KB Output is correct
8 Correct 614 ms 11824 KB Output is correct
9 Correct 620 ms 14352 KB Output is correct
10 Correct 464 ms 12960 KB Output is correct
11 Correct 498 ms 11100 KB Output is correct
12 Correct 329 ms 10712 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 686 ms 11868 KB Output is correct
2 Correct 687 ms 12012 KB Output is correct
3 Correct 678 ms 11864 KB Output is correct
4 Correct 578 ms 10900 KB Output is correct
5 Correct 516 ms 11664 KB Output is correct
6 Correct 399 ms 10840 KB Output is correct
7 Correct 643 ms 14300 KB Output is correct
8 Correct 614 ms 11824 KB Output is correct
9 Correct 620 ms 14352 KB Output is correct
10 Correct 464 ms 12960 KB Output is correct
11 Correct 498 ms 11100 KB Output is correct
12 Correct 329 ms 10712 KB Output is correct
13 Correct 768 ms 12308 KB Output is correct
14 Correct 717 ms 12284 KB Output is correct
15 Correct 674 ms 12084 KB Output is correct
16 Correct 616 ms 11484 KB Output is correct
17 Correct 553 ms 11964 KB Output is correct
18 Correct 399 ms 10712 KB Output is correct
19 Correct 739 ms 12380 KB Output is correct
20 Correct 736 ms 12244 KB Output is correct
21 Correct 733 ms 14808 KB Output is correct
22 Correct 478 ms 12892 KB Output is correct
23 Correct 495 ms 11156 KB Output is correct
24 Correct 335 ms 10332 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 256 KB Output is correct
2 Correct 5 ms 256 KB Output is correct
3 Correct 5 ms 256 KB Output is correct
4 Correct 5 ms 256 KB Output is correct
5 Correct 5 ms 256 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 23 ms 808 KB Output is correct
8 Correct 23 ms 728 KB Output is correct
9 Correct 24 ms 760 KB Output is correct
10 Correct 20 ms 728 KB Output is correct
11 Correct 20 ms 728 KB Output is correct
12 Correct 15 ms 688 KB Output is correct
13 Correct 21 ms 728 KB Output is correct
14 Correct 21 ms 732 KB Output is correct
15 Correct 21 ms 728 KB Output is correct
16 Correct 16 ms 728 KB Output is correct
17 Correct 19 ms 728 KB Output is correct
18 Correct 13 ms 632 KB Output is correct
19 Correct 686 ms 11868 KB Output is correct
20 Correct 687 ms 12012 KB Output is correct
21 Correct 678 ms 11864 KB Output is correct
22 Correct 578 ms 10900 KB Output is correct
23 Correct 516 ms 11664 KB Output is correct
24 Correct 399 ms 10840 KB Output is correct
25 Correct 643 ms 14300 KB Output is correct
26 Correct 614 ms 11824 KB Output is correct
27 Correct 620 ms 14352 KB Output is correct
28 Correct 464 ms 12960 KB Output is correct
29 Correct 498 ms 11100 KB Output is correct
30 Correct 329 ms 10712 KB Output is correct
31 Correct 768 ms 12308 KB Output is correct
32 Correct 717 ms 12284 KB Output is correct
33 Correct 674 ms 12084 KB Output is correct
34 Correct 616 ms 11484 KB Output is correct
35 Correct 553 ms 11964 KB Output is correct
36 Correct 399 ms 10712 KB Output is correct
37 Correct 739 ms 12380 KB Output is correct
38 Correct 736 ms 12244 KB Output is correct
39 Correct 733 ms 14808 KB Output is correct
40 Correct 478 ms 12892 KB Output is correct
41 Correct 495 ms 11156 KB Output is correct
42 Correct 335 ms 10332 KB Output is correct
43 Correct 844 ms 14348 KB Output is correct
44 Correct 854 ms 14428 KB Output is correct
45 Correct 806 ms 14296 KB Output is correct
46 Correct 673 ms 12636 KB Output is correct
47 Correct 611 ms 13020 KB Output is correct
48 Correct 406 ms 10716 KB Output is correct
49 Correct 806 ms 16728 KB Output is correct
50 Correct 785 ms 14296 KB Output is correct
51 Correct 820 ms 16604 KB Output is correct
52 Correct 590 ms 14556 KB Output is correct
53 Correct 544 ms 11992 KB Output is correct