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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#91622#5414. Stop, Yesterday Please No MoreWolamAC ✓22ms20252kbC++141.5kb2023-03-29 10:18:222023-03-29 10:18:23

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-03-29 10:18:23]
  • 评测
  • 测评结果:AC
  • 用时:22ms
  • 内存:20252kb
  • [2023-03-29 10:18:22]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
int sum[2005][2005],n,m,k,T;
char s[1000005];
int mxl,mxr,mxu,mxd;
int x,y;
void mov(char c)
{
	if(c=='L')y++;
	if(c=='R')y--;
	if(c=='U')x++;
	if(c=='D')x--;
}
signed main()
{
//	ios::sync_with_stdio(0);
//	cin.tie(0);cout.tie(0);
//	cin>>T;
	scanf("%d",&T);
	while(T--)
	{
		scanf("%d%d%d%s",&n,&m,&k,s+1);
		for(int i=0;i<=2*n+1;i++)
			for(int j=0;j<=2*m+1;j++)
				sum[i][j]=0;
		int len=strlen(s+1);
		x=n+1,y=m+1;
		mxl=mxr=mxu=mxd=0;
		sum[x][y]=1;
		for(int i=1;i<=len;i++)
		{
			mov(s[i]);
			if(x>=1&&x<=2*n+1&&y>=1&&y<=2*m+1)
			{
				sum[x][y]=1;
			//cout<<x<<" "<<y<<endl;
			}
			mxr=max(mxr,m+1-y);
			mxl=max(mxl,y-m-1);
			mxd=max(mxd,n+1-x);
			mxu=max(mxu,x-n-1);
		}
		//cerr<<mxl<<" "<<mxr<<" "<<mxu<<" "<<mxd<<endl;
		for(int i=1;i<=2*n+1;i++)
		{
			for(int j=1;j<=2*m+1;j++)
			{
				sum[i][j]+=sum[i-1][j]+sum[i][j-1]-sum[i-1][j-1];
			}
		}
	//	cerr<<sum[2*n+1][2*m+1]<<endl;
		if(mxr+mxl>=m||mxu+mxd>=n)
		{
			if(k==0)
				printf("%d\n",n*m);
			else printf("0\n");
			continue;
		}
		int su=(n-mxu-mxd)*(m-mxl-mxr),ans=0;
		for(int i=1;i<=n;i++)
			for(int j=1;j<=m;j++)
			{
				int x,y,xx,yy;
				x=n+2-i+mxu;y=m+2-j+mxl;
				xx=x+n-mxd-mxu-1,yy=y+m-mxl-mxr-1;
			//	cerr<<x<<" "<<y<<" "<<xx<<" "<<yy<<" ";
				int t=sum[xx][yy]-sum[x-1][yy]-sum[xx][y-1]+sum[x-1][y-1];
			//	cerr<<su<<" "<<t<<endl;
				if(su-t==k)
				{
		//			cerr<<i<<" "<<j<<endl;
					ans++;
				}
			}
		cout<<ans<<'\n';
	}
}
/*
1
3 18 33
UDRLR
*/

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 2ms
memory: 3680kb

input:

3
4 5 3
ULDDRR
4 5 0
UUUUUUU
4 5 10
UUUUUUU

output:

2
20
0

result:

ok 3 number(s): "2 20 0"

Test #2:

score: 0
Accepted
time: 7ms
memory: 7728kb

input:

1060
19 12 0
UDLDDUUUUDDDLLRDUDUURULUUUDRDUDRDRLRLRLULULLLDLDDRLUUUURUUUDDRLLRUUUDULURUULLRDRLRDDURDUUURRRLURLRUULRRUDURDLUUURDLURDDLUUURDDRLLURRDLRUDLRDRLLRRDRDDLDRURRRLUDULLLRUUDLRRURRDLLRRRDLLRDDDLRLRURURDDDL
11 1 0
UR
3 18 33
UDRLR
17 11 132
RLDRDLDRUU
6 10 13
UULUDDLRDLUUDLDD
1 15 0
D
6 20 50
D...

output:

228
11
20
99
18
15
34
240
15
0
0
13
14
18
26
16
1
19
108
8
2
2
3
7
0
30
16
21
0
8
10
9
15
5
320
11
7
3
0
0
12
0
11
0
0
14
0
22
36
51
23
7
6
4
2
48
28
8
63
22
49
13
10
4
108
10
18
44
0
15
9
0
4
30
14
99
105
10
14
17
0
66
10
11
28
52
34
56
33
14
56
90
14
0
121
3
48
30
36
13
0
30
7
8
3
11
16
45
20
34
0...

result:

ok 1060 numbers

Test #3:

score: 0
Accepted
time: 6ms
memory: 19240kb

input:

1
1000 1000 979065
DDUULULUDULLULLDLUULURRLDURLRDLRRUURUUUDLRLUUDUUDUDLLDDDULU

output:

958416

result:

ok 1 number(s): "958416"

Test #4:

score: 0
Accepted
time: 13ms
memory: 19228kb

input:

1
1000 1000 943471
LRLDLURLDLRDRDUULULRDDLLRURDUURLLDDLDLDDLLLUUURLDRUDRLLUUUUUDLUUDLURURRDLRLRRRLULRRULURLRRDLDRLUDRRLDDLUDRRLLUDLLLRDULRRRRLDUUDRDLULUUUUDRRDULUDLLUUDLDURDRRLRRLDRLDDRURURLUULRRLDLLRLRDRRUULDLDLULLDLLRULLRUULURDURRLUUDUULLULDLRUDDLRLRLLUDDDLLLUDRRLDDULRRURRDURDDRDLLULRLULURLRDLLURD...

output:

889224

result:

ok 1 number(s): "889224"

Test #5:

score: 0
Accepted
time: 22ms
memory: 20180kb

input:

1
1000 1000 315808
LLRURURRDDDULLDDUDRDLRLLLDDDLUDRDURLDULRLRULUUDLUULUUDULLLLDDURLDUULUUDLLDLLDRUDUULRLLRLRUURLRLULLDDLLDUDLLRUUDRLDLUULDLLDRRRURDULLDRRRDURURDRLDURURUDLURLDURRLRRUDUDURDRLRRRDLRRURLURUDRRLDLRULLDLUURDURLURLLRDLRDRUURURDRUDUUUDLRRLUDLUUDUDDRRDUULUUDDRLLULDUUDRURRDRLULRLULDURLURUDLLD...

output:

426

result:

ok 1 number(s): "426"

Test #6:

score: 0
Accepted
time: 12ms
memory: 19864kb

input:

1
1000 1000 986018
LLULDRRRDDURRUDRUURRRDDLUUDUULRULRDULLD

output:

972180

result:

ok 1 number(s): "972180"

Test #7:

score: 0
Accepted
time: 8ms
memory: 19172kb

input:

1
1000 1000 945431
DDRRURUUDLDULLDLDDLRULDLLDDRRLUDRLUURRLDRDLURUURRRRLRURLURULLLDRDDDRRRLDLDRLRDDUURRURDDDLRUURLUURLRDUDDDLLDUURLDLUDLLRRDUUDRLUULLUULDLURRUDLUURLRLRURDUDRRRDRLRUDLLLLURLULRLRLRRDDUDLRLDUUUULUDLLURRLURRDLRURRRULDDLLLRLRDLUDLLDDRULDUULRDDUUDDUDLURDULLDUDDLULRULDRLDDULDULLUDLULUDRURRR...

output:

893000

result:

ok 1 number(s): "893000"

Test #8:

score: 0
Accepted
time: 17ms
memory: 20148kb

input:

1
1000 1000 460035
RDDUURDULDDLDDLDDLDRRULLRLUURLURRRDRUDDDRDLDLDULUDLRLLRRLRRURRRDLRLUDRDURULDRRDDDDDDLRLDULUULDUDRLLUUUURUUDRURLRRULDRDRUUUUULULRURDDRLRULLLRDRRULUDDUDDLLLRDRUULUUDDRLURDLDURRDLRRLDRRUDLUULRDLURULLDLRLLDDURDUDLDULDLLRULRDLRLUULLUDRUDDDLRRDULULLRUURLUURRLLLLRLDRURLLRLDRRDDDRLUUUUDUL...

output:

417

result:

ok 1 number(s): "417"

Test #9:

score: 0
Accepted
time: 3ms
memory: 19176kb

input:

1
1000 1000 992010
LLLLLDLDRRLUDRR

output:

1999

result:

ok 1 number(s): "1999"

Test #10:

score: 0
Accepted
time: 8ms
memory: 19276kb

input:

1
1000 1000 919600
LLDLRUDRLURRUDRDRRDLRUDLRRRUUULDLDURDDDRUURRRLLURULDRLRLULLULDRULULRLRRRURLDDDRUUULUDLLLLRRLLRDDRDULUDLRLRLDRLUDUDURRULUULLDULUULDLLDRDULUDLDULDDUULDDRRURDRDULRRLDRRDUURURRLUUUDRRLDRRDDLULRDDLDLLRLRLLLRULUUUURRRLDLRUDRRLRURDRLDULLLUDRULLDLDRRUUDLRRLLRLDDLUDLRLRRURUUDUULUDURDURRLUU...

output:

944

result:

ok 1 number(s): "944"

Test #11:

score: 0
Accepted
time: 17ms
memory: 20252kb

input:

1
1000 1000 804351
DLRLDLLLLUDRDURRLDDRRLRUULURURDDDRDLRUDDULRRLLULURDRUUDRURRLURRRDRURRDRLULRDLRRDRRDDUDLUDLDULRUURRLRUUDRLDDRDDUUDULUULUUUDLRURULLRDUUDDDRRLDRUDDUUDRURLRDRUDLRLDDRRLLRLRDUDDULLULRLLDDUDDDUULDULLRRULULDUUULUDRRDRLUDLRRDDUDLRRDDLDLDRUULRRRRRLRLULLRDDRDDDULDRRURUDDLURLRLURLRDRULUDULUU...

output:

640000

result:

ok 1 number(s): "640000"