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답안 #118165

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
118165 2019-06-18T09:38:37 Z scanhex Examination (JOI19_examination) C++17
100 / 100
 927 ms 42160 KB 
#include <bits/stdc++.h>

using namespace std;
using nagai = long long;
#define sz(x) int((x).size())


int act=0;
struct fen{
	vector<int>v;
	vector<int>t;
	void add1(int x,int y){
		for(;x<t.size();x+=x&-x)
			t[x]+=y;
	}
	int get(int x){
		if(act<2)return 0;
		int ans=0;
		for(;x;x-=x&-x)
			ans+=t[x];
		return ans;
	}
	void add(int x,int y){
		if(act<2)
			return v.push_back(x);
		x=lower_bound(v.begin(),v.end(),x)-v.begin();
		add1(x+1,y);
	}
	int get(int l,int r){
		l=lower_bound(v.begin(),v.end(),l)-v.begin();
		r=lower_bound(v.begin(),v.end(),r)-v.begin();
		return get(r)-get(l);
	}
};
const int N=100100;
const int oo=2.1e9;
struct FEN{
	fen kek[N];
	vector<int>v;
	void add1(int x,int y,int z){
		for(;x<N;x+=x&-x)
			kek[x].add(y,z);
	}
	int get(int x,int y1,int y2){
		if(act<2)return 0;
		int ans=0;
		for(;x;x-=x&-x)
			ans+=kek[x].get(y1,y2);
		return ans;
	}
	void add(int x,int y,int z){
		if(act==0)
			return v.push_back(x);
		x=lower_bound(v.begin(),v.end(),x)-v.begin();
		add1(x+1,y,z);
	}
	int get(int x1,int x2,int y1,int y2){
		x1=lower_bound(v.begin(),v.end(),x1)-v.begin();
		x2=lower_bound(v.begin(),v.end(),x2)-v.begin();
		return get(x2,y1,y2)-get(x1,y1,y2);
	}
	void init(){
		if(act==0){
			sort(v.begin(),v.end());
		}
		else{
			for(int i=0;i<N;++i){
				kek[i].v.push_back(oo+5);
				kek[i].v.push_back(oo+5);
				sort(kek[i].v.begin(),kek[i].v.end());
				kek[i].t.resize(kek[i].v.size()+1);
			}
		}
		++act;
	}
} F;

int n,q;
int xs[N],ys[N];
int as[N],bs[N],cs[N];
struct ev{
	int x,y1,y2,z1,z2,id;
	bool operator <(ev o)const {
		if(x!=o.x)
			return x>o.x;
		return id<o.id;
	}
};
int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin>>n>>q;
	for(int i=0;i<n;++i){
		 cin>>xs[i]>>ys[i];
	}
	for(int i=0;i<q;++i){
		cin>>as[i]>>bs[i]>>cs[i];
	}
	vector<int>ans(q);
	for(int i=0;i<3;++i){
		vector<ev>evs;
		for(int i=0;i<n;++i)
			evs.push_back({xs[i],ys[i],ys[i],xs[i]+ys[i],xs[i]+ys[i],-1});
		for(int i=0;i<q;++i){
			evs.push_back({as[i],bs[i],oo,cs[i],oo,i});
		}
		sort(evs.begin(),evs.end());
		for(auto e:evs){
			if(e.id==-1){
				F.add(e.y1,e.z1,1);
				continue;
			}
			ans[e.id]=F.get(e.y1,e.y2,e.z1,e.z2);
		}
		F.init();
	}
	for(int i=0;i<q;++i)
		cout<<ans[i]<<'\n';
	return 0;
}

Compilation message

examination.cpp: In member function 'void fen::add1(int, int)':
examination.cpp:13:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(;x<t.size();x+=x&-x)
        ~^~~~~~~~~

Subtask #1
2.0 / 2.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 11384 KB Output is correct
2 Correct 32 ms 11384 KB Output is correct
3 Correct 33 ms 11352 KB Output is correct
4 Correct 33 ms 11392 KB Output is correct
5 Correct 31 ms 11328 KB Output is correct
6 Correct 31 ms 11264 KB Output is correct
7 Correct 46 ms 12316 KB Output is correct
8 Correct 47 ms 12296 KB Output is correct
9 Correct 47 ms 12316 KB Output is correct
10 Correct 44 ms 12288 KB Output is correct
11 Correct 47 ms 12252 KB Output is correct
12 Correct 41 ms 12200 KB Output is correct
13 Correct 47 ms 12284 KB Output is correct
14 Correct 47 ms 12264 KB Output is correct
15 Correct 46 ms 12260 KB Output is correct
16 Correct 45 ms 12204 KB Output is correct
17 Correct 46 ms 12444 KB Output is correct
18 Correct 41 ms 12328 KB Output is correct

Subtask #2
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 660 ms 32800 KB Output is correct
2 Correct 657 ms 36096 KB Output is correct
3 Correct 655 ms 35472 KB Output is correct
4 Correct 396 ms 35868 KB Output is correct
5 Correct 610 ms 35260 KB Output is correct
6 Correct 275 ms 35340 KB Output is correct
7 Correct 610 ms 35348 KB Output is correct
8 Correct 587 ms 35832 KB Output is correct
9 Correct 552 ms 35708 KB Output is correct
10 Correct 598 ms 34540 KB Output is correct
11 Correct 356 ms 41340 KB Output is correct
12 Correct 319 ms 40408 KB Output is correct

Subtask #3
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 660 ms 32800 KB Output is correct
2 Correct 657 ms 36096 KB Output is correct
3 Correct 655 ms 35472 KB Output is correct
4 Correct 396 ms 35868 KB Output is correct
5 Correct 610 ms 35260 KB Output is correct
6 Correct 275 ms 35340 KB Output is correct
7 Correct 610 ms 35348 KB Output is correct
8 Correct 587 ms 35832 KB Output is correct
9 Correct 552 ms 35708 KB Output is correct
10 Correct 598 ms 34540 KB Output is correct
11 Correct 356 ms 41340 KB Output is correct
12 Correct 319 ms 40408 KB Output is correct
13 Correct 755 ms 35848 KB Output is correct
14 Correct 678 ms 35964 KB Output is correct
15 Correct 633 ms 35452 KB Output is correct
16 Correct 463 ms 36352 KB Output is correct
17 Correct 710 ms 35764 KB Output is correct
18 Correct 304 ms 35560 KB Output is correct
19 Correct 927 ms 36708 KB Output is correct
20 Correct 762 ms 36748 KB Output is correct
21 Correct 712 ms 36092 KB Output is correct
22 Correct 651 ms 35196 KB Output is correct
23 Correct 502 ms 41472 KB Output is correct
24 Correct 326 ms 40408 KB Output is correct

Subtask #4
57.0 / 57.0

# 결과 실행 시간 메모리 Grader output
1 Correct 32 ms 11384 KB Output is correct
2 Correct 32 ms 11384 KB Output is correct
3 Correct 33 ms 11352 KB Output is correct
4 Correct 33 ms 11392 KB Output is correct
5 Correct 31 ms 11328 KB Output is correct
6 Correct 31 ms 11264 KB Output is correct
7 Correct 46 ms 12316 KB Output is correct
8 Correct 47 ms 12296 KB Output is correct
9 Correct 47 ms 12316 KB Output is correct
10 Correct 44 ms 12288 KB Output is correct
11 Correct 47 ms 12252 KB Output is correct
12 Correct 41 ms 12200 KB Output is correct
13 Correct 47 ms 12284 KB Output is correct
14 Correct 47 ms 12264 KB Output is correct
15 Correct 46 ms 12260 KB Output is correct
16 Correct 45 ms 12204 KB Output is correct
17 Correct 46 ms 12444 KB Output is correct
18 Correct 41 ms 12328 KB Output is correct
19 Correct 660 ms 32800 KB Output is correct
20 Correct 657 ms 36096 KB Output is correct
21 Correct 655 ms 35472 KB Output is correct
22 Correct 396 ms 35868 KB Output is correct
23 Correct 610 ms 35260 KB Output is correct
24 Correct 275 ms 35340 KB Output is correct
25 Correct 610 ms 35348 KB Output is correct
26 Correct 587 ms 35832 KB Output is correct
27 Correct 552 ms 35708 KB Output is correct
28 Correct 598 ms 34540 KB Output is correct
29 Correct 356 ms 41340 KB Output is correct
30 Correct 319 ms 40408 KB Output is correct
31 Correct 755 ms 35848 KB Output is correct
32 Correct 678 ms 35964 KB Output is correct
33 Correct 633 ms 35452 KB Output is correct
34 Correct 463 ms 36352 KB Output is correct
35 Correct 710 ms 35764 KB Output is correct
36 Correct 304 ms 35560 KB Output is correct
37 Correct 927 ms 36708 KB Output is correct
38 Correct 762 ms 36748 KB Output is correct
39 Correct 712 ms 36092 KB Output is correct
40 Correct 651 ms 35196 KB Output is correct
41 Correct 502 ms 41472 KB Output is correct
42 Correct 326 ms 40408 KB Output is correct
43 Correct 762 ms 38248 KB Output is correct
44 Correct 742 ms 38232 KB Output is correct
45 Correct 736 ms 38276 KB Output is correct
46 Correct 471 ms 37244 KB Output is correct
47 Correct 677 ms 36884 KB Output is correct
48 Correct 316 ms 35296 KB Output is correct
49 Correct 683 ms 38144 KB Output is correct
50 Correct 666 ms 38196 KB Output is correct
51 Correct 609 ms 38232 KB Output is correct
52 Correct 627 ms 36476 KB Output is correct
53 Correct 475 ms 42160 KB Output is correct