QOJ.ac

QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#270418#5414. Stop, Yesterday Please No MorePZhengWA 3ms3556kbC++141.1kb2023-11-30 20:41:572023-11-30 20:41:58

Judging History

你现在查看的是最新测评结果

  • [2023-11-30 20:41:58]
  • 评测
  • 测评结果:WA
  • 用时:3ms
  • 内存:3556kb
  • [2023-11-30 20:41:57]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
void solve()
{
	int n,m,k;
	cin>>n>>m>>k;
	int a[2*n+5][2*m+5];
	memset(a,0,sizeof(a));
	string s;
	cin>>s;
	int x=n+3,y=m+3,l=1,r=m,u=n,d=1;
	a[n+3][m+3]=1;
	for(int i=0;i<s.size();i++){
		char c=s[i];
		if(c=='U'){
			y++;
			u++;
			d++;
		}
		if(c=='D'){
			y--;
			u--;
			d--;
		}
		if(c=='L'){
			x--;
			l--;
			r--;
		}
		if(c=='R'){
			x++;
			l++;
			r++;
		}
		l=max(l,1);
		d=max(d,1);
		r=min(r,m);
		u=min(u,n);
		if(x>0&&y>0&&x<2*n+5&&y<2*m+5){
			a[x][y]=1;
		}
	}
	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<2*n+5;i++){
		for(int j=1;j<2*m+5;j++){
			a[i][j]+=a[i][j-1]+a[i-1][j]-a[i-1][j-1];
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			int x=n+2-i,y=m+2-j;
			//cout<<i<<' '<<j<<' '<<a[x+u][y+r]-a[x+d-1][y+r]-a[x+u][y+l-1]+a[x+d-1][y+l-1]<<endl;
			if(a[x+u][y+r]-a[x+d-1][y+r]-a[x+u][y+l-1]+a[x+d-1][y+l-1]==(r-l+1)*(u-d+1)-k){
				cnt++;
			}
		}
	}
	cout<<cnt<<endl;
}
int main()
{
	int t;
	cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3376kb

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: 3ms
memory: 3556kb

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
3
91
3
15
34
240
6
0
0
4
14
18
8
17
21
6
108
6
2
2
3
50
1
15
4
15
0
8
10
9
12
0
320
4
10
0
0
0
4
0
1
0
0
13
0
22
51
51
7
1
6
1
2
48
28
8
60
1
48
0
6
7
110
2
1
44
0
3
9
0
4
30
14
91
105
7
2
17
0
66
10
11
28
42
3
32
1
11
56
90
1
3
120
0
48
26
7
3
0
30
4
5
3
15
30
49
3
28
0
19
0
3
0
32
0
11
27
4...

result:

wrong answer 3rd numbers differ - expected: '20', found: '3'