QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#212294 | #5414. Stop, Yesterday Please No More | veg# | WA | 134ms | 9108kb | C++14 | 2.0kb | 2023-10-13 14:23:34 | 2023-10-13 14:23:34 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int N=1005;
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);
int len=strlen(s);
int dx=0,dy=0;
int mxX=-1e9,mnX=1e9;
int mxY=-1e9,mnY=1e9;
bool fll=0;
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;
}
fl[n][m]=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);
memset(b,0,sizeof(b));
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;
if(RRx+1<=m) b[LLy][RRx+1]-=1;
if(RRy+1<=n) b[RRy+1][LLx]-=1;
if(RRx+1<=m&&RRy+1<=n) b[RRy+1][RRx+1]+=1;
fl[i][j]=0;
}
}
}
/* 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;
}
b[i][j]=0;
}
}
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: 7932kb
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: 134ms
memory: 9108kb
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 4 3 18 15 7 240 4 0 0 13 14 18 0 0 1 19 108 8 2 2 3 7 1 30 16 15 0 8 10 9 15 5 320 11 7 0 0 0 0 0 11 5 0 14 0 22 0 51 0 7 6 3 7 48 28 8 65 22 0 0 10 4 103 10 0 44 0 5 5 0 4 30 0 10 105 11 13 17 0 66 10 11 28 1 0 56 33 6 56 90 5 0 121 3 48 16 36 13 0 30 7 8 3 11 0 45 20 30 0 38 0 21 0 6 21 0 2...
result:
wrong answer 3rd numbers differ - expected: '20', found: '4'