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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#185894 | #5414. Stop, Yesterday Please No More | SoyTony | AC ✓ | 18ms | 8816kb | C++14 | 2.3kb | 2023-09-22 19:23:19 | 2023-09-22 19:23:20 |
Judging History
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"