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Submission #126155

# Submission time Handle Problem Language Result Execution time Memory
126155 2019-07-07T06:25:30 Z dndhk Examination (JOI19_examination) C++14
43 / 100
 3000 ms 380060 KB 
#include <bits/stdc++.h>
 
#define pb push_back
#define all(v) ((v).begin(), (v).end())
#define sortv(v) sort(all(v))
#define sz(v) ((int)(v).size())
#define uniqv(v) (v).erase(unique(all(v)), (v).end())
#define umax(a, b) (a)=max((a), (b))
#define umin(a, b) (a)=min((a), (b))
#define FOR(i,a,b) for(int i = (a); i <= (b); i++)
#define rep(i,n) FOR(i,1,n)
#define rep0(i,n) FOR(i,0,(int)(n)-1)
#define FI first
#define SE second
#define INF 1000000000
#define INFLL 1000000000000000000LL
 
const int MAX_N = 100000;
 
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
 
int NX, NY;
 
 
struct S{
	S(int a, int b, int c) : a(a), b(b), c(c) {}
	int a, b, c;
	bool operator <(const S &t)const{
		return a<t.a;
	}
};

vector<int> vct;
vector<S> vt, vt2;
 
struct SEG{
	struct Node{
		Node(int l, int r, int sum) : l(l), r(r), sum(sum) {}
		int l, r;
		int sum;
	};
	vector<Node> seg;
	void Init(){
		seg.pb({-1, -1, 0});
	}
	void Update(int x){
		//printf("%d\n", x);
		update(0, 0, NY, x);
	}
	void update(int idx, int s, int e, int k){
		while(1){
			seg[idx].sum++;
			if(s==e)	return;
			if(k<=(s+e)/2){
				if(seg[idx].l==-1){
					seg[idx].l = seg.size(); seg.pb({-1, -1, 0});
				}
				idx = seg[idx].l; e = (s+e)/2;
			}else{
				if(seg[idx].r == -1){
					seg[idx].r = seg.size(); seg.pb({-1, -1, 0});
				}
				idx = seg[idx].r; s = (s+e)/2+1;
			}
		}
	}
	int Sum(int x, int y){
		//cout<<x<<" "<<y<<endl;
		int ret = 0;
		int idx, s, e;
		vt.pb({0, 0, NY});
		while(!vt.empty()){
			idx = vt.back().a; s = vt.back().b; e = vt.back().c; vt.pop_back();
			if(idx==-1)	continue;
			if(x<=s && e<=y){
				ret += seg[idx].sum;
				continue;
			}
			if(x>e || y<s)	continue;
			vt.pb({seg[idx].l, s, (s+e)/2}); vt.pb({seg[idx].r, (s+e)/2+1, e});
		}
		return ret;
	}/*
	int sum(int idx, int s, int e, int x, int y){
		if(x==-1)	return 0;
		if(x<=s && e<=y)	{
			//if(seg[idx].sum!=0)	cout<<s<<" "<<e<<" "<<seg[idx].sum<<endl;
			return seg[idx].sum;
		}
		if(x>e || y<s)	return 0;
		return sum(seg[idx].l, s, (s+e)/2, x, y) + sum(seg[idx].r, (s+e)/2+1, e, x, y);
	}*/
};
 
vector<SEG> tree;
SEG tSEG;
 
struct SEG2{
	struct Node{
		Node(int l, int r, int num) : l(l), r(r), num(num) {}
		int l, r, num;
	};
	vector<Node> seg;
	int N;
	void Init(){
		N = INF;
		seg.pb({-1, -1, -1});
	}
	void Update(int x, int y){
		update(0, 0, NX, x);
		for(int i=0; i<vct.size(); i++){
			tree[vct[i]].Update(y);
		}
		while(!vct.empty())	vct.pop_back();
	}
	void update(int idx, int s, int e, int k){
		while(1){
			if(seg[idx].num==-1){
				seg[idx].num = tree.size(); tree.pb(tSEG); tree[seg[idx].num].Init();
			}
			vct.pb(seg[idx].num);
			if(s==e)	return;
			if(k<=(s+e)/2){
				if(seg[idx].l==-1){
					seg[idx].l = seg.size(); seg.pb({-1, -1, -1});
				}
				idx = seg[idx].l; e = (s+e)/2;
			}else{
				if(seg[idx].r == -1){
					seg[idx].r = seg.size(); seg.pb({-1, -1, -1});
				}
				idx = seg[idx].r; s = (s+e)/2+1;
			}
		}
	}
	int Sum(int x, int y, int z, int w){
		vt2.pb({0, 0, NX});
		int ret=0;
		int idx, s, e;
		while(!vt2.empty()){
			idx = vt2.back().a; s = vt2.back().b; e = vt2.back().c;	vt2.pop_back();
			if(idx==-1)	continue;
			if(seg[idx].num==-1)	continue;
			if(x<=s && e<=y)	{
				vct.pb(seg[idx].num);
				//ret += tree[seg[idx].num].Sum(z, w);
				continue;
			}
			if(x>e || y<s)	continue;
			vt2.pb({seg[idx].l, s, (s+e)/2}); vt2.pb({seg[idx].r, (s+e)/2+1, e});
		}
		while(!vct.empty()){
			ret += tree[vct.back()].Sum(z, w);
			vct.pop_back();
		}
		return ret;
	}
	/*
	int sum(int idx, int s, int e, int x, int y, int z, int w){
		if(idx==-1)	return 0;
		if(seg[idx].num==-1)	return 0;
		if(x<=s && e<=y){
			//cout<<s<<" "<<e<<" "<<z<<" "<<w<<" "<<tree[seg[idx].num].Sum(z, w)<<endl;
			return tree[seg[idx].num].Sum(z, w);
		}
		if(x>e || y<s)	return 0;
		return sum(seg[idx].l, s, (s+e)/2, x, y, z, w) + sum(seg[idx].r, (s+e)/2+1, e, x, y, z, w);
	}*/
};
 
SEG2 Seg;
 
int M, Q;
struct Query{
	Query(int a, int b, int c, int idx) : a(a), b(b), c(c), idx(idx) {}
	int a, b, c;
	int idx;
	bool operator <(const Query &t)const{
		return a<t.a;
	}
};
 
map<int, int> X, Y;
vector<int> vx, vy;
vector<S> v;
vector<Query> query;
int ans[MAX_N+1];
 
void cord(){
	sort(vx.begin(), vx.end()); sort(vy.begin(), vy.end());
	vx.erase(unique(vx.begin(), vx.end()), vx.end()); vy.erase(unique(vy.begin(), vy.end()), vy.end());
	for(int i=0; i<vx.size(); i++){
		X[vx[i]] = i;
	}
	for(int i=0; i<vy.size(); i++){
		Y[vy[i]] = i;
	}
	NX = vx.size()-1; NY = vy.size()-1;
}
 
int main(){
	scanf("%d%d", &M, &Q);
	for(int i=0; i<M; i++){
		int a, b; scanf("%d%d", &a, &b);
		vx.pb(a); vy.pb(b);
		v.pb({a+b, a, b});
	}
	for(int i=0; i<Q; i++){
		int a, b, c;
		scanf("%d%d%d", &a, &b, &c);
		vx.pb(a); vy.pb(b);
		query.pb({c, a, b, i});
	}
	cord();
	sort(v.begin(), v.end());
	sort(query.begin(), query.end());
	Seg.Init();
	while(!query.empty()){
		if(v.empty() || query.back().a > v.back().a){
			Query now = query.back(); query.pop_back();
			ans[now.idx] = Seg.Sum(X[now.b], NX, Y[now.c], NY);
			//cout<<endl;
		}else{
			S now = v.back(); v.pop_back();
			//cout<<now.a<<" "<<now.b<<" "<<now.c<<endl<<"======================="<<endl;
			Seg.Update(X[now.b], Y[now.c]);
		}	
	}
	for(int i=0; i<Q; i++){
		printf("%d\n", ans[i]);
	}
 
	return 0;
}

Compilation message

examination.cpp: In member function 'void SEG2::Update(int, int)':
examination.cpp:114:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0; i<vct.size(); i++){
                ~^~~~~~~~~~~
examination.cpp: In function 'void cord()':
examination.cpp:195:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<vx.size(); i++){
               ~^~~~~~~~~~
examination.cpp:198:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<vy.size(); i++){
               ~^~~~~~~~~~
examination.cpp: In function 'int main()':
examination.cpp:205:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &M, &Q);
  ~~~~~^~~~~~~~~~~~~~~~
examination.cpp:207:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int a, b; scanf("%d%d", &a, &b);
             ~~~~~^~~~~~~~~~~~~~~~
examination.cpp:213:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d", &a, &b, &c);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 36 ms 7416 KB Output is correct
8 Correct 34 ms 7288 KB Output is correct
9 Correct 33 ms 7420 KB Output is correct
10 Correct 15 ms 2552 KB Output is correct
11 Correct 12 ms 1916 KB Output is correct
12 Correct 5 ms 504 KB Output is correct
13 Correct 36 ms 7416 KB Output is correct
14 Correct 35 ms 7288 KB Output is correct
15 Correct 35 ms 7416 KB Output is correct
16 Correct 8 ms 1400 KB Output is correct
17 Correct 11 ms 1784 KB Output is correct
18 Correct 4 ms 632 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2518 ms 279768 KB Output is correct
2 Correct 2560 ms 279848 KB Output is correct
3 Correct 2412 ms 280204 KB Output is correct
4 Correct 519 ms 39324 KB Output is correct
5 Correct 426 ms 30612 KB Output is correct
6 Correct 117 ms 7064 KB Output is correct
7 Correct 2202 ms 266648 KB Output is correct
8 Correct 2219 ms 266404 KB Output is correct
9 Correct 2005 ms 254928 KB Output is correct
10 Correct 253 ms 15832 KB Output is correct
11 Correct 367 ms 20876 KB Output is correct
12 Correct 80 ms 6680 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2518 ms 279768 KB Output is correct
2 Correct 2560 ms 279848 KB Output is correct
3 Correct 2412 ms 280204 KB Output is correct
4 Correct 519 ms 39324 KB Output is correct
5 Correct 426 ms 30612 KB Output is correct
6 Correct 117 ms 7064 KB Output is correct
7 Correct 2202 ms 266648 KB Output is correct
8 Correct 2219 ms 266404 KB Output is correct
9 Correct 2005 ms 254928 KB Output is correct
10 Correct 253 ms 15832 KB Output is correct
11 Correct 367 ms 20876 KB Output is correct
12 Correct 80 ms 6680 KB Output is correct
13 Correct 2260 ms 280212 KB Output is correct
14 Correct 2525 ms 280128 KB Output is correct
15 Correct 2477 ms 279800 KB Output is correct
16 Correct 485 ms 39260 KB Output is correct
17 Correct 406 ms 30784 KB Output is correct
18 Correct 121 ms 6908 KB Output is correct
19 Correct 2280 ms 279988 KB Output is correct
20 Correct 2399 ms 280768 KB Output is correct
21 Correct 1998 ms 266204 KB Output is correct
22 Correct 251 ms 15864 KB Output is correct
23 Correct 358 ms 20980 KB Output is correct
24 Correct 85 ms 6672 KB Output is correct

Subtask #4
0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 36 ms 7416 KB Output is correct
8 Correct 34 ms 7288 KB Output is correct
9 Correct 33 ms 7420 KB Output is correct
10 Correct 15 ms 2552 KB Output is correct
11 Correct 12 ms 1916 KB Output is correct
12 Correct 5 ms 504 KB Output is correct
13 Correct 36 ms 7416 KB Output is correct
14 Correct 35 ms 7288 KB Output is correct
15 Correct 35 ms 7416 KB Output is correct
16 Correct 8 ms 1400 KB Output is correct
17 Correct 11 ms 1784 KB Output is correct
18 Correct 4 ms 632 KB Output is correct
19 Correct 2518 ms 279768 KB Output is correct
20 Correct 2560 ms 279848 KB Output is correct
21 Correct 2412 ms 280204 KB Output is correct
22 Correct 519 ms 39324 KB Output is correct
23 Correct 426 ms 30612 KB Output is correct
24 Correct 117 ms 7064 KB Output is correct
25 Correct 2202 ms 266648 KB Output is correct
26 Correct 2219 ms 266404 KB Output is correct
27 Correct 2005 ms 254928 KB Output is correct
28 Correct 253 ms 15832 KB Output is correct
29 Correct 367 ms 20876 KB Output is correct
30 Correct 80 ms 6680 KB Output is correct
31 Correct 2260 ms 280212 KB Output is correct
32 Correct 2525 ms 280128 KB Output is correct
33 Correct 2477 ms 279800 KB Output is correct
34 Correct 485 ms 39260 KB Output is correct
35 Correct 406 ms 30784 KB Output is correct
36 Correct 121 ms 6908 KB Output is correct
37 Correct 2280 ms 279988 KB Output is correct
38 Correct 2399 ms 280768 KB Output is correct
39 Correct 1998 ms 266204 KB Output is correct
40 Correct 251 ms 15864 KB Output is correct
41 Correct 358 ms 20980 KB Output is correct
42 Correct 85 ms 6672 KB Output is correct
43 Correct 2742 ms 380060 KB Output is correct
44 Correct 2870 ms 379684 KB Output is correct
45 Execution timed out 3060 ms 379616 KB Time limit exceeded
46 Halted 0 ms 0 KB -