QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#673418#4328. DugputQingyu100 ✓1213ms18612kbC++234.8kb2024-10-24 22:16:392024-10-24 22:48:27

Judging History

你现在查看的是最新测评结果

  • [2024-10-24 22:48:27]
  • 管理员手动重测本题所有提交记录
  • 测评结果:100
  • 用时:1213ms
  • 内存:18612kb
  • [2024-10-24 22:43:45]
  • 管理员手动重测本题所有提交记录
  • 测评结果:0
  • 用时:10ms
  • 内存:8468kb
  • [2024-10-24 22:28:15]
  • 管理员手动重测本题所有提交记录
  • 测评结果:0
  • 用时:7ms
  • 内存:10324kb
  • [2024-10-24 22:21:26]
  • 管理员手动重测本题所有提交记录
  • 测评结果:59.244865
  • 用时:1180ms
  • 内存:20748kb
  • [2024-10-24 22:16:40]
  • 评测
  • 测评结果:60
  • 用时:1208ms
  • 内存:16372kb
  • [2024-10-24 22:16:39]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define MP make_pair
mt19937 rnd(time(0));
const int MAXN=5005;
int tid,T;
bool ri[MAXN][MAXN],dw[MAXN][MAXN];
bool vis[MAXN][MAXN];
map<array<int,6>,string> mp;
int max_len(int n,int m,int x1,int y1,int x2,int y2){
	if(x1==x2&&y1==y2) return 1;
	if(n>m) return max_len(m,n,y1,x1,y2,x2);
	if(x1>x2) return max_len(n,m,n+1-x1,y1,n+1-x2,y2);
	if(y1>y2) return max_len(n,m,x1,m+1-y1,x2,m+1-y2);
	if(n==1) return y2-y1+1;
	if(n==2&&x2-x1==1&&y2-y1<=1) return max(y1+y2,2*m+2-y1-y2);
	if(n*m&1) return n*m-((x1+y1)&1)-((x2+y2)&1);
	if(n==3&&((x1+x2+y1+y2)&1)&&((y2-y1>=2&&((x1+y1)&1))||(x1==2&&x2==2&&(y1&1)))) return n*m-2;
	return n*m-(~(x1+x2+y1+y2)&1); 
}
string replace(string s,char L,char R,char U,char D){
	for(int i=0;i<s.length();i++){
		if(s[i]=='L') s[i]=L;
		else if(s[i]=='R') s[i]=R;
		else if(s[i]=='U') s[i]=U;
		else if(s[i]=='D') s[i]=D;
	}
	return s;
}
string rev(string s){
	reverse(s.begin(),s.end());
	return replace(s,'R','L','D','U');
}
string solve(int n,int m,int x1,int y1,int x2,int y2){
	if(x1==x2&&y1==y2) return (string){};
	if(mp.count({n,m,x1,y1,x2,y2})) return mp[{n,m,x1,y1,x2,y2}];
	if(n>m) return replace(solve(m,n,y1,x1,y2,x2),'U','D','L','R');
	if(x1>x2) return replace(solve(n,m,n+1-x1,y1,n+1-x2,y2),'L','R','D','U');
	if(y1>y2) return replace(solve(n,m,x1,m+1-y1,x2,m+1-y2),'R','L','U','D');
	if(n==1) return string(y2-y1,'R');
	int C=max_len(n,m,x1,y1,x2,y2);
	for(int x=1;x<=n;x++) if(x1<=x&&x<x2) for(int y=1;y<=m;y++){
		if(C==max_len(x,m,x1,y1,x,y)+max_len(n-x,m,1,y,x2-x,y2)){
			return solve(x,m,x1,y1,x,y)+"D"+solve(n-x,m,1,y,x2-x,y2);
		}
	}
	for(int y=1;y<=m;y++) if(y1<=y&&y<y2) for(int x=1;x<=n;x++){
		if(C==max_len(n,y,x1,y1,x,y)+max_len(n,m-y,x,1,x2,y2-y)){
			return solve(n,y,x1,y1,x,y)+"R"+solve(n,m-y,x,1,x2,y2-y);
		}
	}
	if(n==3&&y1==y2){
		int x3=6-x1-x2;
		if(3+max_len(3,y1-1,x1,y1-1,x3,y1-1)+max_len(3,m-y1,x3,1,x2,1)==C){
			return "L"+solve(3,y1-1,x1,y1-1,x3,y1-1)+"RR"+
			solve(3,m-y1,x3,1,x2,1)+"L";
		}
		if(3+max_len(3,m-y1,x1,1,x3,1)+max_len(3,y1-1,x3,y1-1,x2,y1-1)==C){
			return "R"+solve(3,m-y1,x1,1,x3,1)+"LL"+
			solve(3,y1-1,x3,y1-1,x2,y1-1)+"R";
		}
	}else if(n==3&&y2-y1==1){
		assert(x1==1&&x2==3);
		if(6+max_len(3,m-y2,1,1,2,1)+max_len(3,y1-1,2,y1-1,3,y1-1)==C)
			return "RR"+solve(3,m-y2,1,1,2,1)+"LLL"+
			solve(3,y1-1,2,y1-1,3,y1-1)+"RR";
	}
	bool flag=(x1==x2);string s;
	if(flag) swap(n,m),swap(x1,y1),swap(x2,y2);
	for(int o:{0,1}){
	for(int i=x2+1;i<=n;i++){
		if(n+max_len(n,m-y1,1,1,i,1)+max_len(n,y1-1,n,y1-1,i-1,y1-1)==C){
			s=string(x1-1,'U')+"R"+solve(n,m-y1,1,1,i,1)+"L"+string(n-i,'D')+"L"+
			solve(n,y1-1,n,y1-1,i-1,y1-1)+"R"+string(i-1-x2,'U');
			if(o) s=replace(s,'R','L','U','D');
			if(!flag) return s;
			return replace(s,'U','D','L','R');
		}else if(n+max_len(n,m-y1,1,1,n,1)+max_len(n,y1-1,i,y1-1,i-1,y1-1)==C){
			s=string(x1-1,'U')+"R"+solve(n,m-y1,1,1,n,1)+"L"+string(n-i,'U')+"L"+
			solve(n,y1-1,i,y1-1,i-1,y1-1)+"R"+string(i-1-x2,'U');
			if(o) s=replace(s,'R','L','U','D');
			if(!flag) return s;
			return replace(s,'U','D','L','R');
		}
	}
	for(int i=1;i<x1;i++){
		if(n+max_len(n,m-y1,i+1,1,i,1)+max_len(n,y1-1,1,y1-1,n,y1-1)==C){
			s=string(x1-i-1,'U')+"R"+solve(n,m-y1,i+1,1,i,1)+"L"+string(i-1,'U')+"L"+
			solve(n,y1-1,1,y1-1,n,y1-1)+"R"+string(n-x2,'U');
			if(o) s=replace(s,'R','L','U','D');
			if(!flag) return s;
			return replace(s,'U','D','L','R');
		}else if(n+max_len(n,m-y1,i+1,1,1,1)+max_len(n,y1-1,i,y1-1,n,y1-1)==C){
			s=string(x1-i-1,'U')+"R"+solve(n,m-y1,i+1,1,1,1)+"L"+string(i-1,'D')+
			"L"+solve(n,y1-1,i,y1-1,n,y1-1)+"R"+string(n-x2,'U');
			if(o) s=replace(s,'R','L','U','D');
			if(!flag) return s;
			return replace(s,'U','D','L','R');
		}
	}
	y1=y2=m+1-y1;
	}
	assert(0);
}
int main(){
	ios::sync_with_stdio(false);
	// freopen("Otomachi_Una.in","r",stdin);
	// freopen("Otomachi_Una.out","w",stdout);
	cin>>tid>>T;
	if(tid<=4)tid=0;
	else tid=1;
	while(T--){
		int n,m,x1,y1,x2,y2;
		cin>>n>>m>>x1>>y1>>x2>>y2;
		if(tid) cout<<max_len(n,m,x1,y1,x2,y2)<<'\n';
		else{
			string s=solve(n,m,x1,y1,x2,y2);
			for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) vis[i][j]=ri[i][j]=dw[i][j]=0;
			int x=x1,y=y1;
			for(char c:s){
				vis[x][y]=true;
				if(c=='L'){
					ri[x][--y]=true;
				}else if(c=='R'){
					ri[x][y++]=true;
				}else if(c=='U'){
					dw[--x][y]=true;
				}else{
					dw[x++][y]=true;
				}
			}
			for(int i=1;i<=n;i++){
				for(int j=1;j<=m;j++){
					cout<<"o*"[(i==x1&&j==y1)||(i==x2&&j==y2)];
					if(j<m) for(int o:{0,1}) cout<<" -"[ri[i][j]];
				}
				cout<<'\n';
				if(i<n){
					for(int j=1;j<=m;j++){
						cout<<" |"[dw[i][j]];
						if(j<m) cout<<"  ";
					}
					cout<<'\n';
				}
			}
		}
	}
	cerr<<"Running time: "<<1.*clock()/CLOCKS_PER_SEC<<'\n';
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 20
Accepted

Test #1:

score: 20
Accepted
time: 7ms
memory: 14240kb

input:

1
1562
15 6 1 6 15 1
15 6 5 6 11 1
15 6 15 2 1 5
15 6 1 6 1 3
15 6 15 6 11 6
15 6 1 1 4 2
15 6 2 1 9 2
15 6 4 5 9 4
15 6 4 5 4 6
15 6 9 2 3 2
15 6 9 2 6 5
2 41 1 41 2 1
2 41 1 24 2 9
2 41 2 2 1 10
2 41 1 1 1 14
2 41 2 1 1 10
2 41 2 16 2 17
2 41 1 28 2 35
2 41 2 9 1 36
2 41 1 18 ...

output:

o--o--o  o--o  *
|     |  |  |  |
o--o  o  o  o  o
   |  |  |  |  |
o--o  o  o  o  o
|     |  |  |  |
o--o  o  o  o  o
   |  |  |  |  |
o--o  o  o  o  o
|     |  |  |  |
o--o  o  o  o  o
   |  |  |  |  |
o--o  o  o  o  o
|     |  |  |  |
o--o  o  o  o  o
   |  |  |  |  |
o--o  o  o  o  o
|     |  | ...

result:

points 1.0 correct (test case 1562)

Subtask #2:

score: 25
Accepted

Dependency #1:

100%
Accepted

Test #2:

score: 25
Accepted
time: 68ms
memory: 15492kb

input:

2
1562
500 1 1 1 500 1
500 1 52 1 76 1
500 1 24 1 243 1
500 1 1 1 386 1
500 1 1 1 10 1
500 1 340 1 117 1
500 1 298 1 363 1
500 1 300 1 103 1
500 1 370 1 383 1
12 83 12 1 12 83
12 83 12 27 12 65
12 83 1 22 1 78
12 83 1 83 12 69
12 83 1 83 2 83
12 83 1 83 2 60
12 83 10 83 11 14
12 83...

output:

*
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
o
|
...

result:

points 1.0 correct (test case 1562)

Subtask #3:

score: 15
Accepted

Dependency #2:

100%
Accepted

Test #3:

score: 15
Accepted
time: 254ms
memory: 16104kb

input:

3
1172
500 3 500 3 1 3
500 3 332 1 425 1
500 3 390 1 270 3
500 3 1 1 293 3
500 3 500 1 284 1
500 3 1 3 55 2
500 3 314 1 457 2
500 3 68 2 261 2
500 3 68 2 69 3
500 3 299 2 376 2
500 3 299 2 299 1
500 3 500 1 1 1
500 3 103 1 300 1
500 3 142 1 113 1
500 3 1 1 76 3
500 3 1 1 439 1
500 ...

output:

o--o  *
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |  |
o  o  o
|  |...

result:

points 1.0 correct (test case 1172)

Subtask #4:

score: 25
Accepted

Dependency #3:

100%
Accepted

Test #4:

score: 25
Accepted
time: 1213ms
memory: 18612kb

input:

4
1562
165 500 1 500 165 500
165 500 78 500 1 401
165 500 165 469 104 500
165 500 1 1 165 298
165 500 165 1 1 499
165 500 165 1 4 122
165 500 8 1 85 361
165 500 112 191 152 254
165 500 112 191 114 190
165 500 49 106 64 350
165 500 49 106 48 108
22 500 22 500 22 1
22 500 20 1 1 387
22 ...

output:

o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--o--...

result:

points 1.0 correct (test case 1562)

Subtask #5:

score: 15
Accepted

Test #5:

score: 15
Accepted
time: 3ms
memory: 4004kb

input:

5
1562
165 500 1 500 165 500
165 500 78 500 1 401
165 500 165 469 104 500
165 500 1 1 165 298
165 500 165 1 1 499
165 500 165 1 4 122
165 500 8 1 85 361
165 500 112 191 152 254
165 500 112 191 114 190
165 500 49 106 64 350
165 500 49 106 48 108
22 500 22 500 22 1
22 500 20 1 1 387
22 ...

output:

82499
82499
82499
82500
82499
82499
82500
82500
82500
82500
82500
11000
11000
10999
10999
10999
11000
10999
11000
11000
11000
10999
10499
10500
10500
10500
10500
10500
10500
10500
10500
10500
10499
30000
30000
29999
29999
29999
30000
30000
29999
30000
29999
30000
39999
39999
40000
40000
40000
40000
...

result:

ok good job! (1562 test cases)