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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#212468 | #5414. Stop, Yesterday Please No More | veg# | AC ✓ | 13ms | 18732kb | C++14 | 2.1kb | 2023-10-13 16:14:31 | 2023-10-13 16:14:31 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=2005;
int n,m,k,b[N][N];
char s[1000005];
bool fl[N][N];
int main() {
int T; scanf("%d",&T);
while(T--) {
scanf("%d%d%d%s",&n,&m,&k,s);
for(int i=1;i<=n;++i) {
for(int j=1;j<=m;++j) {
b[i][j]=0;
}
}
for(int i=1;i<=n+n;++i) {
for(int j=1;j<=m+m;++j) {
fl[i][j]=0;
}
}
int len=strlen(s);
int dx=0,dy=0;
int mxX=0,mnX=0;
int mxY=0,mnY=0;
bool fll=0;
fl[n][m]=1;
for(int i=0;i<len;++i) {
if(s[i]=='U') {
--dy;
} else if(s[i]=='L') {
--dx;
} else if(s[i]=='R') {
++dx;
} else ++dy;
if(dx==m||dx==-m||dy==n||dy==-n) {
fll=1;
break;
}
mxX=max(mxX,dx);
mnX=min(mnX,dx);
mxY=max(mxY,dy);
mnY=min(mnY,dy);
fl[n+dy][m+dx]=1;
}
if(fll==1) {
printf("%d\n",k==0?n*m:0);
continue;
}
int Lx=max(0,-mnX)+1,Rx=m-mxX;
int Ly=max(0,-mnY)+1,Ry=n-mxY;
if(Lx>Rx||Ly>Ry) {
printf("%d\n",k==0?n*m:0);
continue;
}
// printf("%d %d %d %d\n",Lx,Ly,Rx,Ry);
for(int i=1;i<n+n;++i) {
for(int j=1;j<m+m;++j) {
if(fl[i][j]) {
int u=i-n,v=j-m;
int LLy=Ly+u,RRy=Ry+u;
int LLx=Lx+v,RRx=Rx+v;
/* if(LLy>n||RRy<1||LLx>m||RRx<1) {
continue;
}
LLy=min(max(LLy,1),n);
RRy=min(max(RRy,1),n);
LLx=min(max(LLx,1),m);
RRx=min(max(RRx,1),m);*/
// printf("%d %d:\n",u,v);
// printf("%d %d %d %d\n",LLx,LLy,RRx,RRy);
b[LLy][LLx]+=1;
b[LLy][RRx+1]-=1;
b[RRy+1][LLx]-=1;
b[RRy+1][RRx+1]+=1;
}
}
}
/* for(int i=0;i<=n;++i) {
for(int j=0;j<=m;++j) {
printf("%d ",b[i][j]);
}
puts("");
}*/
for(int i=1;i<=n;++i) {
for(int j=1;j<=m;++j) {
b[i][j]=b[i][j]-b[i-1][j-1]+b[i-1][j]+b[i][j-1];
// printf("%d ",b[i][j]);
}
// puts("");
}
/// printf("%d\n",b[3][4]);
int res=(Ry-Ly+1)*(Rx-Lx+1);
// printf("%d\n",res);
int ans=0;
for(int i=1;i<=n;++i) {
for(int j=1;j<=m;++j) {
if(b[i][j]+k==res) {
++ans;
}
}
}
printf("%d\n",ans);
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 7964kb
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: 4ms
memory: 8404kb
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: 5ms
memory: 16836kb
input:
1 1000 1000 979065 DDUULULUDULLULLDLUULURRLDURLRDLRRUURUUUDLRLUUDUUDUDLLDDDULU
output:
958416
result:
ok 1 number(s): "958416"
Test #4:
score: 0
Accepted
time: 5ms
memory: 18732kb
input:
1 1000 1000 943471 LRLDLURLDLRDRDUULULRDDLLRURDUURLLDDLDLDDLLLUUURLDRUDRLLUUUUUDLUUDLURURRDLRLRRRLULRRULURLRRDLDRLUDRRLDDLUDRRLLUDLLLRDULRRRRLDUUDRDLULUUUUDRRDULUDLLUUDLDURDRRLRRLDRLDDRURURLUULRRLDLLRLRDRRUULDLDLULLDLLRULLRUULURDURRLUUDUULLULDLRUDDLRLRLLUDDDLLLUDRRLDDULRRURRDURDDRDLLULRLULURLRDLLURD...
output:
889224
result:
ok 1 number(s): "889224"
Test #5:
score: 0
Accepted
time: 9ms
memory: 17292kb
input:
1 1000 1000 315808 LLRURURRDDDULLDDUDRDLRLLLDDDLUDRDURLDULRLRULUUDLUULUUDULLLLDDURLDUULUUDLLDLLDRUDUULRLLRLRUURLRLULLDDLLDUDLLRUUDRLDLUULDLLDRRRURDULLDRRRDURURDRLDURURUDLURLDURRLRRUDUDURDRLRRRDLRRURLURUDRRLDLRULLDLUURDURLURLLRDLRDRUURURDRUDUUUDLRRLUDLUUDUDDRRDUULUUDDRLLULDUUDRURRDRLULRLULDURLURUDLLD...
output:
426
result:
ok 1 number(s): "426"
Test #6:
score: 0
Accepted
time: 0ms
memory: 17132kb
input:
1 1000 1000 986018 LLULDRRRDDURRUDRUURRRDDLUUDUULRULRDULLD
output:
972180
result:
ok 1 number(s): "972180"
Test #7:
score: 0
Accepted
time: 0ms
memory: 18044kb
input:
1 1000 1000 945431 DDRRURUUDLDULLDLDDLRULDLLDDRRLUDRLUURRLDRDLURUURRRRLRURLURULLLDRDDDRRRLDLDRLRDDUURRURDDDLRUURLUURLRDUDDDLLDUURLDLUDLLRRDUUDRLUULLUULDLURRUDLUURLRLRURDUDRRRDRLRUDLLLLURLULRLRLRRDDUDLRLDUUUULUDLLURRLURRDLRURRRULDDLLLRLRDLUDLLDDRULDUULRDDUUDDUDLURDULLDUDDLULRULDRLDDULDULLUDLULUDRURRR...
output:
893000
result:
ok 1 number(s): "893000"
Test #8:
score: 0
Accepted
time: 13ms
memory: 17364kb
input:
1 1000 1000 460035 RDDUURDULDDLDDLDDLDRRULLRLUURLURRRDRUDDDRDLDLDULUDLRLLRRLRRURRRDLRLUDRDURULDRRDDDDDDLRLDULUULDUDRLLUUUURUUDRURLRRULDRDRUUUUULULRURDDRLRULLLRDRRULUDDUDDLLLRDRUULUUDDRLURDLDURRDLRRLDRRUDLUULRDLURULLDLRLLDDURDUDLDULDLLRULRDLRLUULLUDRUDDDLRRDULULLRUURLUURRLLLLRLDRURLLRLDRRDDDRLUUUUDUL...
output:
417
result:
ok 1 number(s): "417"
Test #9:
score: 0
Accepted
time: 0ms
memory: 17904kb
input:
1 1000 1000 992010 LLLLLDLDRRLUDRR
output:
1999
result:
ok 1 number(s): "1999"
Test #10:
score: 0
Accepted
time: 4ms
memory: 17816kb
input:
1 1000 1000 919600 LLDLRUDRLURRUDRDRRDLRUDLRRRUUULDLDURDDDRUURRRLLURULDRLRLULLULDRULULRLRRRURLDDDRUUULUDLLLLRRLLRDDRDULUDLRLRLDRLUDUDURRULUULLDULUULDLLDRDULUDLDULDDUULDDRRURDRDULRRLDRRDUURURRLUUUDRRLDRRDDLULRDDLDLLRLRLLLRULUUUURRRLDLRUDRRLRURDRLDULLLUDRULLDLDRRUUDLRRLLRLDDLUDLRLRRURUUDUULUDURDURRLUU...
output:
944
result:
ok 1 number(s): "944"
Test #11:
score: 0
Accepted
time: 8ms
memory: 17636kb
input:
1 1000 1000 804351 DLRLDLLLLUDRDURRLDDRRLRUULURURDDDRDLRUDDULRRLLULURDRUUDRURRLURRRDRURRDRLULRDLRRDRRDDUDLUDLDULRUURRLRUUDRLDDRDDUUDULUULUUUDLRURULLRDUUDDDRRLDRUDDUUDRURLRDRUDLRLDDRRLLRLRDUDDULLULRLLDDUDDDUULDULLRRULULDUUULUDRRDRLUDLRRDDUDLRRDDLDLDRUULRRRRRLRLULLRDDRDDDULDRRURUDDLURLRLURLRDRULUDULUU...
output:
640000
result:
ok 1 number(s): "640000"