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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#281523#5414. Stop, Yesterday Please No MorePZhengWA 13ms4220kbC++141.3kb2023-12-10 10:58:162023-12-10 10:58:17

Judging History

你现在查看的是最新测评结果

  • [2023-12-10 10:58:17]
  • 评测
  • 测评结果:WA
  • 用时:13ms
  • 内存:4220kb
  • [2023-12-10 10:58:16]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
void solve()
{
	int n,m,k;
	cin>>n>>m>>k;
	int a[4*n+10][4*m+10];
	for(int i = 0; i < 4 * n + 10; i++) {
		for(int j = 0; j < 4 * m + 10; j++) {
			a[i][j]	= 1;
		}
	}
	string s;
	cin>>s;
	int x=n+5,y=m+5,l=0,r=m-1,u=n-1,d=0;
	a[n+5][m+5]=0;
	for(int i=0;i<s.size();i++){
		char c=s[i];
		if(c=='U'){
			x--;
			u--;
			d--;
		}
		if(c=='D'){
			x++;
			u++;
			d++;
		}
		if(c=='L'){
			y--;
			l--;
			r--;
		}
		if(c=='R'){
			y++;
			l++;
			r++;
		}
		l=max(l,0);
		d=max(d,0);
		r=min(r,m-1);
		u=min(u,n-1);
		if(x>=0&&y>=0&&x<4*n+10&&y<4*m+10){
			a[x][y]=0;
		}
	}
	int cnt=0;
	if(l>r||u<d){
		if(k==0){
			cout<<m*n<<endl;
		}
		else{
			cout<<0<<endl;
		}
		return;
	}
	for(int i=1;i<4*n+10;i++){
		for(int j=1;j<4*m+10;j++){
			//cout<<a[i][j]<<' ';
			a[i][j]+=a[i][j-1]+a[i-1][j]-a[i-1][j-1];
		}
		//cout<<endl;
	}
	for(int x=n;x<=2*n+5;x++){
		for(int y=m;y<=2*m+5;y++){
			//cout<<a[x-d][y-l]-a[x-u-1][y-l]-a[x-d][y-r-1]+a[x-u-1][y-r-1]<<' ';
			if(a[x-d][y-l]-a[x-u-1][y-l]-a[x-d][y-r-1]+a[x-u-1][y-r-1]==k){
				cnt++;
			}
		}
		//cout<<endl;
	}
	cout<<cnt<<endl;
}
int main()
{
	int t;
	cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3624kb

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: -100
Wrong Answer
time: 13ms
memory: 4220kb

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
11
14
18
26
16
122
19
108
8
2
2
3
205
90
30
16
21
0
8
10
9
15
5
320
9
7
3
0
0
8
0
11
0
0
14
0
22
36
51
23
7
6
4
2
48
28
8
63
22
49
13
6
2
108
7
18
44
0
15
9
0
4
30
14
99
105
6
14
17
0
66
10
11
28
52
34
56
33
12
56
90
14
0
121
3
48
29
36
13
0
30
7
8
3
11
16
45
20
34
0...

result:

wrong answer 12th numbers differ - expected: '13', found: '11'