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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#212392 | #5414. Stop, Yesterday Please No More | veg# | WA | 4ms | 10084kb | C++14 | 2.1kb | 2023-10-13 15:32:13 | 2023-10-13 15:32:15 |
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() {
// freopen("1.in","r",stdin);
// freopen("1.out","w",stdout);
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;
}
}
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;
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;
}
}
}
printf("%d\n",ans);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 7864kb
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: 4ms
memory: 10084kb
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 14 6 8 15 13 240 8 1 1 14 9 18 11 25 1 11 16 9 1 1 2 16 1 65 15 13 0 5 5 9 13 6 320 9 8 1 0 0 6 1 5 9 0 17 0 22 13 51 15 6 6 7 15 48 28 8 4 3 4 1 10 3 0 10 5 44 0 10 0 10 4 30 5 4 105 3 5 17 0 66 2 11 28 3 10 7 3 11 3 90 1 0 5 1 48 6 24 17 3 30 5 5 18 14 5 7 3 39 6 11 0 25 4 12 0 5 34 48 0 3 ...
result:
wrong answer 3rd numbers differ - expected: '20', found: '14'