oj.uz

Submission #863128

# Submission time Handle Problem Language Result Execution time Memory
863128 2023-10-19T16:20:04 Z Pyqe Soccer Stadium (IOI23_soccer) C++17
100 / 100
 2233 ms 1037972 KB 
#include <bits/stdc++.h>
#include "soccer.h"

using namespace std;

#define mp make_pair
#define fr first
#define sc second

int n,ht[2069],lg2[2069],dp[8000069],dsu[8000069],z=0;
bitset<2069> a[2069];
pair<pair<int,int>,pair<int,int>> ky[8000069];
pair<int,int> sp[2][2069][6][2069];
vector<int> al[8000069];
bitset<8000069> vtd;

inline int god(int xx,int x,int y)
{
	return xx*n*n+(x-1)*n+y;
}

inline void spbd(int xx,int x)
{
	int i,j;
	
	for(i=1;i<=n;i++)
	{
		sp[xx][x][0][i]={ht[i],i};
	}
	for(i=1;1<<i*2<=n;i++)
	{
		for(j=1;j<=n-(1<<i*2)+1;j++)
		{
			sp[xx][x][i][j]=min({sp[xx][x][i-1][j],sp[xx][x][i-1][j+(1<<(i-1)*2)],sp[xx][x][i-1][j+(1<<(i-1)*2)*2],sp[xx][x][i-1][j+(1<<(i-1)*2)*3]});
		}
	}
}

inline pair<int,int> spqr(int xx,int x,int lb,int rb)
{
	int e=lg2[rb-lb+1];
	
	return min({sp[xx][x][e][lb],sp[xx][x][e][min(lb+(1<<e*2),rb-(1<<e*2)+1)],sp[xx][x][e][min(lb+(1<<e*2)*2,rb-(1<<e*2)+1)],sp[xx][x][e][rb-(1<<e*2)+1]});
}

inline void ae(int x,int y)
{
	al[x].push_back(y);
}

int fd(int x)
{
	if(dsu[x]!=x)
	{
		dsu[x]=fd(dsu[x]);
	}
	return dsu[x];
}

inline int dnc(int xx,int x,int lb,int rb)
{
	if(lb<=rb)
	{
		int u,k,l,p,p2,e,clb,crb;
		pair<int,int> tmp=spqr(xx,x,lb,rb),tmp2;
		
		u=!xx*2-1;
		clb=x-(tmp.fr-1)*u;
		crb=x;
		if(xx)
		{
			swap(clb,crb);
		}
		if(clb<=crb)
		{
			p=god(xx,x,tmp.sc);
			ky[p]={{clb,crb},{lb,rb}};
		}
		else
		{
			p=-1;
		}
		for(k=lb,l=rb;k<=l;k=e+1)
		{
			tmp2=spqr(xx,x,k,l);
			if(tmp2.fr!=tmp.fr)
			{
				break;
			}
			e=tmp2.sc;
			p2=dnc(xx,x,k,e-1);
			if(p!=-1&&p2!=-1)
			{
				ae(p,p2);
			}
		}
		p2=dnc(xx,x,k,l);
		if(p!=-1&&p2!=-1)
		{
			ae(p,p2);
		}
		if(p!=-1)
		{
			tmp2=spqr(!xx,x-(tmp.fr-1)*u,lb,rb);
			p2=god(!xx,x-(tmp.fr-1)*u,tmp2.sc);
			if(tmp2.fr!=tmp.fr)
			{
				ae(p,p2);
			}
			else
			{
				dsu[fd(p2)]=fd(p);
			}
		}
		return p;
	}
	else
	{
		return -1;
	}
}

void dfs(int x)
{
	int i,sz=al[x].size(),l,w,clb,crb,lb,rb,lb2,rb2;
	
	vtd[x]=1;
	dp[x]=0;
	for(i=0;i<sz;i++)
	{
		l=fd(al[x][i]);
		clb=ky[x].fr.fr;
		crb=ky[x].fr.sc;
		lb=ky[l].fr.fr;
		rb=ky[l].fr.sc;
		lb2=ky[l].sc.fr;
		rb2=ky[l].sc.sc;
		w=(rb-lb-(crb-clb))*(rb2-lb2+1);
		if(!vtd[l])
		{
			dfs(l);
		}
		dp[x]=max(dp[x],dp[l]+w);
	}
	lb=ky[x].fr.fr;
	rb=ky[x].fr.sc;
	lb2=ky[x].sc.fr;
	rb2=ky[x].sc.sc;
	z=max(z,dp[x]+(rb-lb+1)*(rb2-lb2+1));
}

int biggest_stadium(int on,vector<vector<int>> oa)
{
	int i,j,ii,u,k,l,sz;
	
	n=on;
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=n;j++)
		{
			a[i][j]=oa[i-1][j-1];
		}
		for(k=i;k;k/=4,lg2[i]++);
		lg2[i]--;
	}
	for(ii=0;ii<2;ii++)
	{
		u=!ii*2-1;
		for(i=1;i<=n;i++)
		{
			ht[i]=0;
		}
		for(i=1+(n-1)*ii;i&&i<=n;i+=u)
		{
			for(j=1;j<=n;j++)
			{
				ht[j]=(ht[j]+1)*!a[i][j];
			}
			spbd(ii,i);
		}
	}
	for(i=1;i<=n*n*2;i++)
	{
		dsu[i]=i;
	}
	for(ii=0;ii<2;ii++)
	{
		u=!ii*2-1;
		for(i=1+(n-1)*ii;i&&i<=n;i+=u)
		{
			dnc(ii,i,1,n);
		}
	}
	for(i=1;i<=n*n*2;i++)
	{
		if(fd(i)!=i)
		{
			sz=al[i].size();
			for(j=0;j<sz;j++)
			{
				l=al[i][j];
				al[fd(i)].push_back(l);
			}
		}
	}
	for(i=1;i<=n*n*2;i++)
	{
		if(ky[i].fr.fr&&!vtd[i])
		{
			dfs(i);
		}
	}
	return z;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 189032 KB ok

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 189012 KB ok
2 Correct 56 ms 189088 KB ok
3 Correct 68 ms 189268 KB ok
4 Correct 56 ms 189264 KB ok
5 Correct 55 ms 189008 KB ok
6 Correct 58 ms 189008 KB ok
7 Correct 59 ms 193332 KB ok
8 Correct 105 ms 239436 KB ok
9 Correct 850 ms 673552 KB ok

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 69 ms 189012 KB ok
2 Correct 56 ms 189088 KB ok
3 Correct 68 ms 188988 KB ok
4 Correct 62 ms 189132 KB ok
5 Correct 56 ms 188960 KB ok
6 Correct 63 ms 189012 KB ok
7 Correct 70 ms 189012 KB ok
8 Correct 56 ms 189012 KB ok
9 Correct 61 ms 189092 KB ok
10 Correct 57 ms 189012 KB ok
11 Correct 59 ms 195212 KB ok
12 Correct 47 ms 189164 KB ok
13 Correct 43 ms 201308 KB ok

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 189032 KB ok
2 Correct 69 ms 189012 KB ok
3 Correct 56 ms 189088 KB ok
4 Correct 68 ms 188988 KB ok
5 Correct 62 ms 189132 KB ok
6 Correct 56 ms 188960 KB ok
7 Correct 63 ms 189012 KB ok
8 Correct 70 ms 189012 KB ok
9 Correct 56 ms 189012 KB ok
10 Correct 61 ms 189092 KB ok
11 Correct 57 ms 189012 KB ok
12 Correct 59 ms 195212 KB ok
13 Correct 47 ms 189164 KB ok
14 Correct 43 ms 201308 KB ok
15 Correct 44 ms 201592 KB ok
16 Correct 41 ms 201300 KB ok
17 Correct 44 ms 201300 KB ok
18 Correct 42 ms 201300 KB ok
19 Correct 41 ms 201312 KB ok
20 Correct 41 ms 201300 KB ok
21 Correct 41 ms 201296 KB ok
22 Correct 41 ms 201560 KB ok
23 Correct 41 ms 201564 KB ok
24 Correct 40 ms 201308 KB ok
25 Correct 41 ms 201332 KB ok
26 Correct 41 ms 201296 KB ok

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 189032 KB ok
2 Correct 69 ms 189012 KB ok
3 Correct 56 ms 189088 KB ok
4 Correct 68 ms 189268 KB ok
5 Correct 56 ms 189264 KB ok
6 Correct 68 ms 188988 KB ok
7 Correct 62 ms 189132 KB ok
8 Correct 56 ms 188960 KB ok
9 Correct 63 ms 189012 KB ok
10 Correct 70 ms 189012 KB ok
11 Correct 56 ms 189012 KB ok
12 Correct 61 ms 189092 KB ok
13 Correct 57 ms 189012 KB ok
14 Correct 59 ms 195212 KB ok
15 Correct 47 ms 189164 KB ok
16 Correct 43 ms 201308 KB ok
17 Correct 44 ms 201592 KB ok
18 Correct 41 ms 201300 KB ok
19 Correct 44 ms 201300 KB ok
20 Correct 42 ms 201300 KB ok
21 Correct 41 ms 201312 KB ok
22 Correct 41 ms 201300 KB ok
23 Correct 41 ms 201296 KB ok
24 Correct 41 ms 201560 KB ok
25 Correct 41 ms 201564 KB ok
26 Correct 40 ms 201308 KB ok
27 Correct 41 ms 201332 KB ok
28 Correct 41 ms 201296 KB ok
29 Correct 40 ms 201304 KB ok
30 Correct 42 ms 205656 KB ok
31 Correct 41 ms 205568 KB ok
32 Correct 41 ms 205648 KB ok
33 Correct 42 ms 205648 KB ok
34 Correct 42 ms 205660 KB ok
35 Correct 41 ms 205660 KB ok
36 Correct 41 ms 205652 KB ok
37 Correct 42 ms 205612 KB ok
38 Correct 42 ms 205648 KB ok
39 Correct 41 ms 205648 KB ok
40 Correct 42 ms 205652 KB ok
41 Correct 41 ms 205656 KB ok

Subtask #5
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 189032 KB ok
2 Correct 69 ms 189012 KB ok
3 Correct 56 ms 189088 KB ok
4 Correct 68 ms 189268 KB ok
5 Correct 56 ms 189264 KB ok
6 Correct 68 ms 188988 KB ok
7 Correct 62 ms 189132 KB ok
8 Correct 56 ms 188960 KB ok
9 Correct 63 ms 189012 KB ok
10 Correct 70 ms 189012 KB ok
11 Correct 56 ms 189012 KB ok
12 Correct 61 ms 189092 KB ok
13 Correct 57 ms 189012 KB ok
14 Correct 59 ms 195212 KB ok
15 Correct 47 ms 189164 KB ok
16 Correct 43 ms 201308 KB ok
17 Correct 44 ms 201592 KB ok
18 Correct 41 ms 201300 KB ok
19 Correct 44 ms 201300 KB ok
20 Correct 42 ms 201300 KB ok
21 Correct 41 ms 201312 KB ok
22 Correct 41 ms 201300 KB ok
23 Correct 41 ms 201296 KB ok
24 Correct 41 ms 201560 KB ok
25 Correct 41 ms 201564 KB ok
26 Correct 40 ms 201308 KB ok
27 Correct 41 ms 201332 KB ok
28 Correct 41 ms 201296 KB ok
29 Correct 40 ms 201304 KB ok
30 Correct 42 ms 205656 KB ok
31 Correct 41 ms 205568 KB ok
32 Correct 41 ms 205648 KB ok
33 Correct 42 ms 205648 KB ok
34 Correct 42 ms 205660 KB ok
35 Correct 41 ms 205660 KB ok
36 Correct 41 ms 205652 KB ok
37 Correct 42 ms 205612 KB ok
38 Correct 42 ms 205648 KB ok
39 Correct 41 ms 205648 KB ok
40 Correct 42 ms 205652 KB ok
41 Correct 41 ms 205656 KB ok
42 Correct 167 ms 313940 KB ok
43 Correct 167 ms 311520 KB ok
44 Correct 161 ms 315656 KB ok
45 Correct 150 ms 314400 KB ok
46 Correct 173 ms 315400 KB ok
47 Correct 94 ms 303956 KB ok
48 Correct 98 ms 312920 KB ok
49 Correct 105 ms 310576 KB ok
50 Correct 114 ms 319060 KB ok
51 Correct 118 ms 317416 KB ok
52 Correct 91 ms 309548 KB ok
53 Correct 88 ms 304324 KB ok
54 Correct 90 ms 311380 KB ok
55 Correct 95 ms 312280 KB ok
56 Correct 88 ms 308832 KB ok
57 Correct 124 ms 318032 KB ok
58 Correct 113 ms 318700 KB ok
59 Correct 139 ms 319516 KB ok

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 56 ms 189032 KB ok
2 Correct 69 ms 189012 KB ok
3 Correct 56 ms 189088 KB ok
4 Correct 68 ms 189268 KB ok
5 Correct 56 ms 189264 KB ok
6 Correct 55 ms 189008 KB ok
7 Correct 58 ms 189008 KB ok
8 Correct 59 ms 193332 KB ok
9 Correct 105 ms 239436 KB ok
10 Correct 850 ms 673552 KB ok
11 Correct 68 ms 188988 KB ok
12 Correct 62 ms 189132 KB ok
13 Correct 56 ms 188960 KB ok
14 Correct 63 ms 189012 KB ok
15 Correct 70 ms 189012 KB ok
16 Correct 56 ms 189012 KB ok
17 Correct 61 ms 189092 KB ok
18 Correct 57 ms 189012 KB ok
19 Correct 59 ms 195212 KB ok
20 Correct 47 ms 189164 KB ok
21 Correct 43 ms 201308 KB ok
22 Correct 44 ms 201592 KB ok
23 Correct 41 ms 201300 KB ok
24 Correct 44 ms 201300 KB ok
25 Correct 42 ms 201300 KB ok
26 Correct 41 ms 201312 KB ok
27 Correct 41 ms 201300 KB ok
28 Correct 41 ms 201296 KB ok
29 Correct 41 ms 201560 KB ok
30 Correct 41 ms 201564 KB ok
31 Correct 40 ms 201308 KB ok
32 Correct 41 ms 201332 KB ok
33 Correct 41 ms 201296 KB ok
34 Correct 40 ms 201304 KB ok
35 Correct 42 ms 205656 KB ok
36 Correct 41 ms 205568 KB ok
37 Correct 41 ms 205648 KB ok
38 Correct 42 ms 205648 KB ok
39 Correct 42 ms 205660 KB ok
40 Correct 41 ms 205660 KB ok
41 Correct 41 ms 205652 KB ok
42 Correct 42 ms 205612 KB ok
43 Correct 42 ms 205648 KB ok
44 Correct 41 ms 205648 KB ok
45 Correct 42 ms 205652 KB ok
46 Correct 41 ms 205656 KB ok
47 Correct 167 ms 313940 KB ok
48 Correct 167 ms 311520 KB ok
49 Correct 161 ms 315656 KB ok
50 Correct 150 ms 314400 KB ok
51 Correct 173 ms 315400 KB ok
52 Correct 94 ms 303956 KB ok
53 Correct 98 ms 312920 KB ok
54 Correct 105 ms 310576 KB ok
55 Correct 114 ms 319060 KB ok
56 Correct 118 ms 317416 KB ok
57 Correct 91 ms 309548 KB ok
58 Correct 88 ms 304324 KB ok
59 Correct 90 ms 311380 KB ok
60 Correct 95 ms 312280 KB ok
61 Correct 88 ms 308832 KB ok
62 Correct 124 ms 318032 KB ok
63 Correct 113 ms 318700 KB ok
64 Correct 139 ms 319516 KB ok
65 Correct 2233 ms 984980 KB ok
66 Correct 1053 ms 823948 KB ok
67 Correct 901 ms 801980 KB ok
68 Correct 1903 ms 984412 KB ok
69 Correct 2174 ms 1037972 KB ok
70 Correct 2228 ms 1037452 KB ok
71 Correct 1500 ms 952680 KB ok
72 Correct 771 ms 813124 KB ok
73 Correct 952 ms 841296 KB ok
74 Correct 911 ms 849540 KB ok
75 Correct 923 ms 851000 KB ok
76 Correct 1043 ms 950180 KB ok
77 Correct 1067 ms 950580 KB ok
78 Correct 1231 ms 919580 KB ok
79 Correct 839 ms 816780 KB ok
80 Correct 791 ms 816580 KB ok
81 Correct 864 ms 825172 KB ok
82 Correct 998 ms 847876 KB ok
83 Correct 1057 ms 840028 KB ok
84 Correct 720 ms 718728 KB ok
85 Correct 672 ms 693720 KB ok
86 Correct 740 ms 736592 KB ok
87 Correct 737 ms 746528 KB ok
88 Correct 709 ms 745924 KB ok
89 Correct 689 ms 798920 KB ok
90 Correct 696 ms 808160 KB ok
91 Correct 716 ms 808708 KB ok
92 Correct 850 ms 816148 KB ok
93 Correct 912 ms 819532 KB ok
94 Correct 831 ms 811640 KB ok
95 Correct 751 ms 810584 KB ok
96 Correct 713 ms 810088 KB ok
97 Correct 704 ms 809420 KB ok
98 Correct 692 ms 807504 KB ok
99 Correct 1460 ms 942164 KB ok
100 Correct 1150 ms 933488 KB ok
101 Correct 1300 ms 920208 KB ok
102 Correct 1277 ms 921904 KB ok
103 Correct 1212 ms 943892 KB ok
104 Correct 1328 ms 946180 KB ok
105 Correct 1378 ms 943360 KB ok
106 Correct 1261 ms 951556 KB ok
107 Correct 1319 ms 949276 KB ok
108 Correct 998 ms 878420 KB ok
109 Correct 1106 ms 901896 KB ok