oj.uz

답안 #726461

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
726461 2023-04-19T00:53:50 Z alvingogo Rectangles (IOI19_rect) C++14
100 / 100
 3656 ms 457160 KB 
#include "rect.h"
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops,inline")
#pragma GCC target("sse,sse2,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define fs first
#define sc second
using namespace std;

typedef pair<int,int> pii;

namespace{

struct BIT{
	int n;
	vector<int> bt;
	BIT(int x){
		n=x;
		bt.resize(x+1);
	}
	BIT(){
		n=0;
	}
	void update(int x,int y){
		for(;x<=n;x+=(x&-x)){
			bt[x]+=y;
		}
	}
	int query(int x){
		int ans=0;
		for(;x>0;x-=(x&-x)){
			ans+=bt[x];
		}
		return ans;
	}
}vb[2502];

}
int tag[2501][2501]={0},tag2[2501][2501]={0};
long long count_rectangles(vector<vector<int> > v) {
	int n=v.size();
	int m=v[0].size();
	vector<vector<int> > tmp(m,vector<int>(n));
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			tmp[j][i]=v[i][j];
		}
	}
	if(n<=2 || m<=2){
		return 0;
	}
	swap(n,m);
	v=tmp;
	vector<pii> az[2502],bz[2502];
	vector<pii> t1,t2;
	for(int i=1;i<n-1;i++){
		vector<pair<int,int> > gg;
		vector<int> vis(m),up(m),down(m);
		for(int j=0;j<m;j++){
			gg.push_back({v[i][j],j});
		}
		sort(gg.begin(),gg.end());
		for(auto h:gg){
			int x=h.sc-1,y=h.sc+1;
			int l=h.sc,r=h.sc;
			if(x<0 || !vis[x]){

			}
			else{
				l=up[x];
			}
			if(y>=m || !vis[y]){
				
			}
			else{
				r=down[y];
			}
			vis[h.sc]=1;
			up[h.sc]=l;
			down[h.sc]=r;
			down[l]=r;
			up[r]=l;
			if(l!=0 && r!=m-1 && (v[i][r+1]>h.fs && v[i][l-1]>h.fs)){
				az[i].push_back({l,r});
			}
		}
	}
	for(int i=1;i<m-1;i++){
		vector<pair<int,int> > gg;
		vector<int> vis(n),up(n),down(n);
		for(int j=0;j<n;j++){
			gg.push_back({v[j][i],j});
		}
		sort(gg.begin(),gg.end());
		for(auto h:gg){
			int x=h.sc-1,y=h.sc+1;
			int l=h.sc,r=h.sc;
			if(x<0 || !vis[x]){

			}
			else{
				l=up[x];
			}
			if(y>=n || !vis[y]){
				
			}
			else{
				r=down[y];
			}
			vis[h.sc]=1;
			up[h.sc]=l;
			down[h.sc]=r;
			down[l]=r;
			up[r]=l;
			if(l!=0 && r!=n-1 && (v[r+1][i]>h.fs && v[l-1][i]>h.fs)){
				bz[i].push_back({l,r});
			}
		}
	}
	for(int i=0;i<2501;i++){
		for(int j=0;j<2501;j++){
			tag[i][j]=-1;
		}
	}
	vector<pair<int,pii> > ev[2505];
	for(int i=1;i<n-1;i++){
		for(auto h:az[i]){
			tag2[h.fs][h.sc]=1;
			if(tag[h.fs][h.sc]==-1){
				tag[h.fs][h.sc]=i;
			}
		}
		if(i>1){
			for(auto h:az[i-1]){
				if(tag2[h.fs][h.sc]==0){
					ev[h.fs].push_back({-h.sc,{tag[h.fs][h.sc],i-1}});
					tag[h.fs][h.sc]=-1;
				}
			}
		}
		for(auto h:az[i]){
			tag2[h.fs][h.sc]=0;
		}
	}
	for(int i=0;i<2501;i++){
		for(int j=0;j<2501;j++){
			if(tag[i][j]!=-1){
				ev[i].push_back({-j,{tag[i][j],n-2}});
				tag[i][j]=-1;
			}
		}
	}
	for(int i=1;i<m-1;i++){
		for(auto h:bz[i]){
			tag2[h.fs][h.sc]=1;
			if(tag[h.fs][h.sc]==-1){
				tag[h.fs][h.sc]=i;
			}
		}
		if(i>1){
			for(auto h:bz[i-1]){
				if(tag2[h.fs][h.sc]==0){
					for(int j=tag[h.fs][h.sc];j<=i-1;j++){
						ev[j].push_back({-(i-1),{-h.fs,-h.sc}});
					}
					tag[h.fs][h.sc]=-1;
				}
			}
		}
		for(auto h:bz[i]){
			tag2[h.fs][h.sc]=0;
		}
	}
	for(int i=0;i<2501;i++){
		for(int j=0;j<2501;j++){
			if(tag[i][j]!=-1){
				for(int q=tag[i][j];q<m-1;q++){
					ev[q].push_back({-(m-2),{-i,-j}});
				}
				tag[i][j]=-1;
			}
		}
	}
	// BIT vb[2502];
	for(int i=0;i<n;i++){
		vb[i]=BIT(n);
	}
	//vector<BIT> vb(n,BIT(n));
	long long ans=0;
	
	// for(int i=1;i<m-1;i++){
	// 	sort(ev[i].begin(),ev[i].end());
	// }
	for(int i=1;i<m-1;i++){
		sort(ev[i].begin(),ev[i].end());
		for(auto h:ev[i]){
			if(h.sc.sc>0){
				for(int j=h.sc.fs;j<=h.sc.sc;j++){
					ans+=vb[j].query(h.sc.sc);
				}	
			}
			else{
				vb[-h.sc.fs].update(-h.sc.sc,1);
			}
		}
		for(auto h:ev[i]){
			if(h.sc.sc<0){
				vb[-h.sc.fs].update(-h.sc.sc,-1);
			}
		}
	}
	return ans;
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 25044 KB Output is correct
2 Correct 18 ms 25172 KB Output is correct
3 Correct 18 ms 25204 KB Output is correct
4 Correct 18 ms 25204 KB Output is correct
5 Correct 19 ms 25056 KB Output is correct
6 Correct 19 ms 25116 KB Output is correct
7 Correct 19 ms 25176 KB Output is correct
8 Correct 25 ms 25172 KB Output is correct
9 Correct 19 ms 25216 KB Output is correct
10 Correct 22 ms 25204 KB Output is correct
11 Correct 19 ms 25172 KB Output is correct
12 Correct 25 ms 25172 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 20 ms 25044 KB Output is correct
16 Correct 19 ms 24976 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 19 ms 25088 KB Output is correct
20 Correct 20 ms 25048 KB Output is correct
21 Correct 1 ms 508 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 25044 KB Output is correct
2 Correct 18 ms 25172 KB Output is correct
3 Correct 18 ms 25204 KB Output is correct
4 Correct 18 ms 25204 KB Output is correct
5 Correct 19 ms 25056 KB Output is correct
6 Correct 19 ms 25116 KB Output is correct
7 Correct 19 ms 25176 KB Output is correct
8 Correct 25 ms 25172 KB Output is correct
9 Correct 19 ms 25216 KB Output is correct
10 Correct 22 ms 25204 KB Output is correct
11 Correct 19 ms 25172 KB Output is correct
12 Correct 25 ms 25172 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 20 ms 25044 KB Output is correct
16 Correct 19 ms 24976 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 1 ms 468 KB Output is correct
19 Correct 19 ms 25088 KB Output is correct
20 Correct 20 ms 25048 KB Output is correct
21 Correct 1 ms 508 KB Output is correct
22 Correct 21 ms 25808 KB Output is correct
23 Correct 21 ms 25732 KB Output is correct
24 Correct 23 ms 25768 KB Output is correct
25 Correct 23 ms 25568 KB Output is correct
26 Correct 21 ms 25848 KB Output is correct
27 Correct 22 ms 25864 KB Output is correct
28 Correct 21 ms 25808 KB Output is correct
29 Correct 20 ms 25556 KB Output is correct

Subtask #3
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 25044 KB Output is correct
2 Correct 18 ms 25172 KB Output is correct
3 Correct 18 ms 25204 KB Output is correct
4 Correct 18 ms 25204 KB Output is correct
5 Correct 19 ms 25056 KB Output is correct
6 Correct 19 ms 25116 KB Output is correct
7 Correct 19 ms 25176 KB Output is correct
8 Correct 25 ms 25172 KB Output is correct
9 Correct 19 ms 25216 KB Output is correct
10 Correct 22 ms 25204 KB Output is correct
11 Correct 19 ms 25172 KB Output is correct
12 Correct 25 ms 25172 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 20 ms 25044 KB Output is correct
16 Correct 19 ms 24976 KB Output is correct
17 Correct 21 ms 25808 KB Output is correct
18 Correct 21 ms 25732 KB Output is correct
19 Correct 23 ms 25768 KB Output is correct
20 Correct 23 ms 25568 KB Output is correct
21 Correct 21 ms 25848 KB Output is correct
22 Correct 22 ms 25864 KB Output is correct
23 Correct 21 ms 25808 KB Output is correct
24 Correct 20 ms 25556 KB Output is correct
25 Correct 1 ms 468 KB Output is correct
26 Correct 1 ms 468 KB Output is correct
27 Correct 19 ms 25088 KB Output is correct
28 Correct 20 ms 25048 KB Output is correct
29 Correct 1 ms 508 KB Output is correct
30 Correct 28 ms 28024 KB Output is correct
31 Correct 27 ms 28120 KB Output is correct
32 Correct 28 ms 28072 KB Output is correct
33 Correct 30 ms 27532 KB Output is correct
34 Correct 41 ms 28700 KB Output is correct
35 Correct 35 ms 28876 KB Output is correct
36 Correct 33 ms 28708 KB Output is correct
37 Correct 34 ms 28664 KB Output is correct

Subtask #4
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 25044 KB Output is correct
2 Correct 18 ms 25172 KB Output is correct
3 Correct 18 ms 25204 KB Output is correct
4 Correct 18 ms 25204 KB Output is correct
5 Correct 19 ms 25056 KB Output is correct
6 Correct 19 ms 25116 KB Output is correct
7 Correct 19 ms 25176 KB Output is correct
8 Correct 25 ms 25172 KB Output is correct
9 Correct 19 ms 25216 KB Output is correct
10 Correct 22 ms 25204 KB Output is correct
11 Correct 19 ms 25172 KB Output is correct
12 Correct 25 ms 25172 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 20 ms 25044 KB Output is correct
16 Correct 19 ms 24976 KB Output is correct
17 Correct 21 ms 25808 KB Output is correct
18 Correct 21 ms 25732 KB Output is correct
19 Correct 23 ms 25768 KB Output is correct
20 Correct 23 ms 25568 KB Output is correct
21 Correct 21 ms 25848 KB Output is correct
22 Correct 22 ms 25864 KB Output is correct
23 Correct 21 ms 25808 KB Output is correct
24 Correct 20 ms 25556 KB Output is correct
25 Correct 28 ms 28024 KB Output is correct
26 Correct 27 ms 28120 KB Output is correct
27 Correct 28 ms 28072 KB Output is correct
28 Correct 30 ms 27532 KB Output is correct
29 Correct 41 ms 28700 KB Output is correct
30 Correct 35 ms 28876 KB Output is correct
31 Correct 33 ms 28708 KB Output is correct
32 Correct 34 ms 28664 KB Output is correct
33 Correct 1 ms 468 KB Output is correct
34 Correct 1 ms 468 KB Output is correct
35 Correct 19 ms 25088 KB Output is correct
36 Correct 20 ms 25048 KB Output is correct
37 Correct 1 ms 508 KB Output is correct
38 Correct 148 ms 53796 KB Output is correct
39 Correct 139 ms 53872 KB Output is correct
40 Correct 116 ms 53348 KB Output is correct
41 Correct 127 ms 53236 KB Output is correct
42 Correct 156 ms 58560 KB Output is correct
43 Correct 147 ms 58532 KB Output is correct
44 Correct 155 ms 58712 KB Output is correct
45 Correct 155 ms 57548 KB Output is correct
46 Correct 131 ms 43760 KB Output is correct
47 Correct 151 ms 47632 KB Output is correct
48 Correct 243 ms 64112 KB Output is correct
49 Correct 236 ms 66492 KB Output is correct
50 Correct 132 ms 47736 KB Output is correct
51 Correct 124 ms 48048 KB Output is correct
52 Correct 212 ms 61308 KB Output is correct
53 Correct 225 ms 62028 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 39 ms 59964 KB Output is correct
2 Correct 35 ms 51516 KB Output is correct
3 Correct 34 ms 49800 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 37 ms 54884 KB Output is correct
6 Correct 39 ms 55020 KB Output is correct
7 Correct 38 ms 54840 KB Output is correct
8 Correct 38 ms 54632 KB Output is correct
9 Correct 37 ms 54400 KB Output is correct
10 Correct 1 ms 596 KB Output is correct
11 Correct 1 ms 724 KB Output is correct

Subtask #6
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 19 ms 25088 KB Output is correct
4 Correct 20 ms 25048 KB Output is correct
5 Correct 1 ms 508 KB Output is correct
6 Correct 21 ms 25060 KB Output is correct
7 Correct 759 ms 134188 KB Output is correct
8 Correct 1679 ms 231768 KB Output is correct
9 Correct 1650 ms 232616 KB Output is correct
10 Correct 1654 ms 239320 KB Output is correct
11 Correct 301 ms 91960 KB Output is correct
12 Correct 545 ms 126536 KB Output is correct
13 Correct 564 ms 135048 KB Output is correct

Subtask #7
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 25044 KB Output is correct
2 Correct 18 ms 25172 KB Output is correct
3 Correct 18 ms 25204 KB Output is correct
4 Correct 18 ms 25204 KB Output is correct
5 Correct 19 ms 25056 KB Output is correct
6 Correct 19 ms 25116 KB Output is correct
7 Correct 19 ms 25176 KB Output is correct
8 Correct 25 ms 25172 KB Output is correct
9 Correct 19 ms 25216 KB Output is correct
10 Correct 22 ms 25204 KB Output is correct
11 Correct 19 ms 25172 KB Output is correct
12 Correct 25 ms 25172 KB Output is correct
13 Correct 1 ms 468 KB Output is correct
14 Correct 1 ms 468 KB Output is correct
15 Correct 20 ms 25044 KB Output is correct
16 Correct 19 ms 24976 KB Output is correct
17 Correct 21 ms 25808 KB Output is correct
18 Correct 21 ms 25732 KB Output is correct
19 Correct 23 ms 25768 KB Output is correct
20 Correct 23 ms 25568 KB Output is correct
21 Correct 21 ms 25848 KB Output is correct
22 Correct 22 ms 25864 KB Output is correct
23 Correct 21 ms 25808 KB Output is correct
24 Correct 20 ms 25556 KB Output is correct
25 Correct 28 ms 28024 KB Output is correct
26 Correct 27 ms 28120 KB Output is correct
27 Correct 28 ms 28072 KB Output is correct
28 Correct 30 ms 27532 KB Output is correct
29 Correct 41 ms 28700 KB Output is correct
30 Correct 35 ms 28876 KB Output is correct
31 Correct 33 ms 28708 KB Output is correct
32 Correct 34 ms 28664 KB Output is correct
33 Correct 148 ms 53796 KB Output is correct
34 Correct 139 ms 53872 KB Output is correct
35 Correct 116 ms 53348 KB Output is correct
36 Correct 127 ms 53236 KB Output is correct
37 Correct 156 ms 58560 KB Output is correct
38 Correct 147 ms 58532 KB Output is correct
39 Correct 155 ms 58712 KB Output is correct
40 Correct 155 ms 57548 KB Output is correct
41 Correct 131 ms 43760 KB Output is correct
42 Correct 151 ms 47632 KB Output is correct
43 Correct 243 ms 64112 KB Output is correct
44 Correct 236 ms 66492 KB Output is correct
45 Correct 132 ms 47736 KB Output is correct
46 Correct 124 ms 48048 KB Output is correct
47 Correct 212 ms 61308 KB Output is correct
48 Correct 225 ms 62028 KB Output is correct
49 Correct 39 ms 59964 KB Output is correct
50 Correct 35 ms 51516 KB Output is correct
51 Correct 34 ms 49800 KB Output is correct
52 Correct 1 ms 468 KB Output is correct
53 Correct 37 ms 54884 KB Output is correct
54 Correct 39 ms 55020 KB Output is correct
55 Correct 38 ms 54840 KB Output is correct
56 Correct 38 ms 54632 KB Output is correct
57 Correct 37 ms 54400 KB Output is correct
58 Correct 1 ms 596 KB Output is correct
59 Correct 1 ms 724 KB Output is correct
60 Correct 21 ms 25060 KB Output is correct
61 Correct 759 ms 134188 KB Output is correct
62 Correct 1679 ms 231768 KB Output is correct
63 Correct 1650 ms 232616 KB Output is correct
64 Correct 1654 ms 239320 KB Output is correct
65 Correct 301 ms 91960 KB Output is correct
66 Correct 545 ms 126536 KB Output is correct
67 Correct 564 ms 135048 KB Output is correct
68 Correct 1 ms 468 KB Output is correct
69 Correct 1 ms 468 KB Output is correct
70 Correct 19 ms 25088 KB Output is correct
71 Correct 20 ms 25048 KB Output is correct
72 Correct 1 ms 508 KB Output is correct
73 Correct 1861 ms 310724 KB Output is correct
74 Correct 1690 ms 315532 KB Output is correct
75 Correct 1448 ms 314312 KB Output is correct
76 Correct 1501 ms 314112 KB Output is correct
77 Correct 2129 ms 364940 KB Output is correct
78 Correct 2130 ms 305640 KB Output is correct
79 Correct 2003 ms 286984 KB Output is correct
80 Correct 3656 ms 438644 KB Output is correct
81 Correct 1981 ms 304208 KB Output is correct
82 Correct 2602 ms 335460 KB Output is correct
83 Correct 3433 ms 457160 KB Output is correct
84 Correct 1798 ms 258336 KB Output is correct
85 Correct 3092 ms 385692 KB Output is correct
86 Correct 3045 ms 379684 KB Output is correct
87 Correct 1257 ms 233312 KB Output is correct
88 Correct 2091 ms 363940 KB Output is correct
89 Correct 2135 ms 363572 KB Output is correct
90 Correct 2148 ms 363616 KB Output is correct