QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#270717 | #5414. Stop, Yesterday Please No More | PZheng | WA | 6ms | 3608kb | C++14 | 1.1kb | 2023-12-01 12:10:08 | 2023-12-01 12:10:08 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
void solve()
{
int n,m,k;
cin>>n>>m>>k;
int a[2*n+5][2*m+5];
memset(a,0,sizeof(a));
string s;
cin>>s;
int x=n+3,y=m+3,l=1,r=m,u=n,d=1;
a[n+3][m+3]=1;
for(int i=0;i<s.size();i++){
char c=s[i];
if(c=='U'){
x++;
u++;
d++;
}
if(c=='D'){
x--;
u--;
d--;
}
if(c=='L'){
y--;
l--;
r--;
}
if(c=='R'){
y++;
l++;
r++;
}
l=max(l,1);
d=max(d,1);
r=min(r,m);
u=min(u,n);
if(x>0&&y>0&&x<2*n+5&&y<2*m+5){
a[x][y]=1;
}
}
int cnt=0;
if(l>r||u<d){
if(k==0){
cout<<m*n<<endl;
}
else{
cout<<0<<endl;
}
return;
}
for(int i=1;i<2*n+5;i++){
for(int j=1;j<2*m+5;j++){
a[i][j]+=a[i][j-1]+a[i-1][j]-a[i-1][j-1];
}
}
for(int i=0;i<n;i++){
for(int j=0;j<m;j++){
int x=n+3-i,y=m+3-j;
if(a[x+u][y+r]-a[x+d-1][y+r]-a[x+u][y+l-1]+a[x+d-1][y+l-1]==(r-l+1)*(u-d+1)-k){
cnt++;
}
}
}
cout<<cnt<<endl;
}
int main()
{
int t;
cin>>t;
while(t--){
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3408kb
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: 6ms
memory: 3608kb
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 18 99 7 15 18 240 12 0 0 2 11 18 26 16 22 18 108 3 0 0 3 16 8 14 14 5 0 8 9 9 3 0 320 1 7 0 0 0 12 0 11 0 0 9 0 22 36 51 23 4 6 1 2 48 28 8 63 10 49 0 10 1 108 9 8 44 0 2 9 0 4 30 2 88 105 8 14 17 0 66 8 11 28 39 19 42 10 8 42 90 14 0 121 3 48 28 19 10 0 30 5 8 3 7 15 40 20 34 0 19 0 19 0 17 ...
result:
wrong answer 3rd numbers differ - expected: '20', found: '18'