QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#185894#5414. Stop, Yesterday Please No MoreSoyTonyAC ✓18ms8816kbC++142.3kb2023-09-22 19:23:192023-09-22 19:23:20

Judging History

你现在查看的是最新测评结果

  • [2023-09-22 19:23:20]
  • 评测
  • 测评结果:AC
  • 用时:18ms
  • 内存:8816kb
  • [2023-09-22 19:23:19]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;

const int maxn=1e3+10;
const int maxs=1e6+10; 

inline int read(){
    int x=0,w=1;char c=getchar();
    while(c<'0'||c>'9'){if(c=='-')w=-1;c=getchar();}
    while(c<='9'&&c>='0'){x=(x<<3)+(x<<1)+c-'0';c=getchar();}
    return x*w;
}

int t;
int n,m,k,len;
char s[maxs];
int sum[maxn][maxn];

inline int query(int U,int D,int L,int R){
    U=max(U,1),L=max(L,1);
    return sum[D][R]-sum[U-1][R]-sum[D][L-1]+sum[U-1][L-1];
}

int ans;


int main(){
    // freopen("a.in","r",stdin);
    t=read();
    while(t--){
        n=read(),m=read(),k=read();
        scanf("%s",s+1);
        len=strlen(s+1);
        int nowx=0,nowy=0;
        int ux=0,dx=0,ly=0,ry=0;
        for(int i=1;i<=len;++i){
            if(s[i]=='U') --nowx,ux=min(ux,nowx);
            if(s[i]=='D') ++nowx,dx=max(dx,nowx);
            if(s[i]=='L') --nowy,ly=min(ly,nowy);
            if(s[i]=='R') ++nowy,ry=max(ry,nowy);
        }
        int U=-ux+1,D=n-dx,L=-ly+1,R=m-ry;
        // cerr<<U<<" "<<D<<" "<<L<<" "<<R<<endl;
        if(U>D||L>R){
            if(!k) printf("%d\n",n*m);
            else printf("0\n");
            continue;
        }
        int siz=(D-U+1)*(R-L+1);
        nowx=U,nowy=L;
        for(int i=1;i<=n;++i){
            for(int j=1;j<=m;++j){
                sum[i][j]=0;
            }
        }
        sum[U][L]=1;
        for(int i=1;i<=len;++i){
            if(s[i]=='U') --nowx;
            if(s[i]=='D') ++nowx;
            if(s[i]=='L') --nowy;
            if(s[i]=='R') ++nowy;
            // cerr<<nowx<<" "<<nowy<<endl;
            sum[nowx][nowy]=1;
        }
        // for(int i=1;i<=n;++i){
        //     for(int j=1;j<=m;++j){
        //         cerr<<sum[i][j]<<" ";
        //     }
        //     cerr<<endl;
        // }
        for(int i=1;i<=n;++i){
            for(int j=1;j<=m;++j){
                sum[i][j]+=sum[i][j-1];
            }
        }
        for(int i=1;i<=n;++i){
            for(int j=1;j<=m;++j){
                sum[i][j]+=sum[i-1][j];
            }
        }
        ans=0;
        for(int i=1;i<=n;++i){
            for(int j=1;j<=m;++j){
                if(query(i-(D-U),i,j-(R-L),j)+k==siz) ++ans;
            }
        }
        printf("%d\n",ans);
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 5932kb

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: 3ms
memory: 8044kb

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: 3ms
memory: 8172kb

input:

1
1000 1000 979065
DDUULULUDULLULLDLUULURRLDURLRDLRRUURUUUDLRLUUDUUDUDLLDDDULU

output:

958416

result:

ok 1 number(s): "958416"

Test #4:

score: 0
Accepted
time: 4ms
memory: 7844kb

input:

1
1000 1000 943471
LRLDLURLDLRDRDUULULRDDLLRURDUURLLDDLDLDDLLLUUURLDRUDRLLUUUUUDLUUDLURURRDLRLRRRLULRRULURLRRDLDRLUDRRLDDLUDRRLLUDLLLRDULRRRRLDUUDRDLULUUUUDRRDULUDLLUUDLDURDRRLRRLDRLDDRURURLUULRRLDLLRLRDRRUULDLDLULLDLLRULLRUULURDURRLUUDUULLULDLRUDDLRLRLLUDDDLLLUDRRLDDULRRURRDURDDRDLLULRLULURLRDLLURD...

output:

889224

result:

ok 1 number(s): "889224"

Test #5:

score: 0
Accepted
time: 18ms
memory: 8816kb

input:

1
1000 1000 315808
LLRURURRDDDULLDDUDRDLRLLLDDDLUDRDURLDULRLRULUUDLUULUUDULLLLDDURLDUULUUDLLDLLDRUDUULRLLRLRUURLRLULLDDLLDUDLLRUUDRLDLUULDLLDRRRURDULLDRRRDURURDRLDURURUDLURLDURRLRRUDUDURDRLRRRDLRRURLURUDRRLDLRULLDLUURDURLURLLRDLRDRUURURDRUDUUUDLRRLUDLUUDUDDRRDUULUUDDRLLULDUUDRURRDRLULRLULDURLURUDLLD...

output:

426

result:

ok 1 number(s): "426"

Test #6:

score: 0
Accepted
time: 3ms
memory: 7912kb

input:

1
1000 1000 986018
LLULDRRRDDURRUDRUURRRDDLUUDUULRULRDULLD

output:

972180

result:

ok 1 number(s): "972180"

Test #7:

score: 0
Accepted
time: 3ms
memory: 7992kb

input:

1
1000 1000 945431
DDRRURUUDLDULLDLDDLRULDLLDDRRLUDRLUURRLDRDLURUURRRRLRURLURULLLDRDDDRRRLDLDRLRDDUURRURDDDLRUURLUURLRDUDDDLLDUURLDLUDLLRRDUUDRLUULLUULDLURRUDLUURLRLRURDUDRRRDRLRUDLLLLURLULRLRLRRDDUDLRLDUUUULUDLLURRLURRDLRURRRULDDLLLRLRDLUDLLDDRULDUULRDDUUDDUDLURDULLDUDDLULRULDRLDDULDULLUDLULUDRURRR...

output:

893000

result:

ok 1 number(s): "893000"

Test #8:

score: 0
Accepted
time: 13ms
memory: 8768kb

input:

1
1000 1000 460035
RDDUURDULDDLDDLDDLDRRULLRLUURLURRRDRUDDDRDLDLDULUDLRLLRRLRRURRRDLRLUDRDURULDRRDDDDDDLRLDULUULDUDRLLUUUURUUDRURLRRULDRDRUUUUULULRURDDRLRULLLRDRRULUDDUDDLLLRDRUULUUDDRLURDLDURRDLRRLDRRUDLUULRDLURULLDLRLLDDURDUDLDULDLLRULRDLRLUULLUDRUDDDLRRDULULLRUURLUURRLLLLRLDRURLLRLDRRDDDRLUUUUDUL...

output:

417

result:

ok 1 number(s): "417"

Test #9:

score: 0
Accepted
time: 0ms
memory: 7972kb

input:

1
1000 1000 992010
LLLLLDLDRRLUDRR

output:

1999

result:

ok 1 number(s): "1999"

Test #10:

score: 0
Accepted
time: 3ms
memory: 8376kb

input:

1
1000 1000 919600
LLDLRUDRLURRUDRDRRDLRUDLRRRUUULDLDURDDDRUURRRLLURULDRLRLULLULDRULULRLRRRURLDDDRUUULUDLLLLRRLLRDDRDULUDLRLRLDRLUDUDURRULUULLDULUULDLLDRDULUDLDULDDUULDDRRURDRDULRRLDRRDUURURRLUUUDRRLDRRDDLULRDDLDLLRLRLLLRULUUUURRRLDLRUDRRLRURDRLDULLLUDRULLDLDRRUUDLRRLLRLDDLUDLRLRRURUUDUULUDURDURRLUU...

output:

944

result:

ok 1 number(s): "944"

Test #11:

score: 0
Accepted
time: 17ms
memory: 8684kb

input:

1
1000 1000 804351
DLRLDLLLLUDRDURRLDDRRLRUULURURDDDRDLRUDDULRRLLULURDRUUDRURRLURRRDRURRDRLULRDLRRDRRDDUDLUDLDULRUURRLRUUDRLDDRDDUUDULUULUUUDLRURULLRDUUDDDRRLDRUDDUUDRURLRDRUDLRLDDRRLLRLRDUDDULLULRLLDDUDDDUULDULLRRULULDUUULUDRRDRLUDLRRDDUDLRRDDLDLDRUULRRRRRLRLULLRDDRDDDULDRRURUDDLURLRLURLRDRULUDULUU...

output:

640000

result:

ok 1 number(s): "640000"