QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#705018 | #5414. Stop, Yesterday Please No More | liubw_ | TL | 128ms | 5696kb | C++11 | 2.7kb | 2024-11-02 21:53:14 | 2024-11-02 21:53:15 |
Judging History
answer
#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define db double
#define ldb long double
#define max(A,B) (A>B? A:B)
#define min(A,B) (A<B? A:B)
#define yes cout<<"Yes\n"
#define no cout<<"No\n"
#define pir(X) pair<X,X>
#define mpr(A,B) make_pair(A,B)
#define fr first
#define sc second
#define sq(x) ((x)*(x))
using namespace std;
const int N=1e3+10;
int a[N<<1][N<<1],n,m,k;
string s;
int ask(int x1,int y1,int x2,int y2){
return a[x2][y2]-a[x1-1][y2]-a[x2][y1-1]+a[x1-1][y1-1];
}
bool chk(int x1,int y1,int x2,int y2){
int x_l=1,y_l=1,x_r=n,y_r=m,l=1,r=m,u=1,d=n;
for(int i=0;i<s.length();i++){
if(s[i]=='L') l++,r++;
if(s[i]=='R') l--,r--;
if(s[i]=='U') u++,d++;
if(s[i]=='D') u--,d--;
y_l=max(l,y_l),y_r=min(r,y_r);
x_l=max(u,x_l),x_r=min(d,x_r);
}
return (x_l==x1&&x_r==x2&&y_l==y1&&y_r==y2);
}
void slv(){
cin>>n>>m>>k;
cin>>s;
int x_l=1,y_l=1,x_r=n,y_r=m,l=1,r=m,u=1,d=n,len=s.length();
for(int i=0;i<s.length();i++){
if(s[i]=='L') l++,r++;
if(s[i]=='R') l--,r--;
if(s[i]=='U') u++,d++;
if(s[i]=='D') u--,d--;
y_l=max(l,y_l),y_r=min(r,y_r);
x_l=max(u,x_l),x_r=min(d,x_r);
}
if(x_l>x_r||y_l>y_r){
if(k==0) cout<<n*m<<'\n';
else cout<<0<<'\n';
return;
}
// for(int i=0;i<s.length();i++){
// if(s[i]=='L') y_l++,y_r++;
// if(s[i]=='R') y_l--,y_r--;
// if(s[i]=='U') x_l++,x_r++;
// if(s[i]=='D') x_l--,x_r--;
// }
// assert(chk(x_l,y_l,x_r,y_r));
// if(n==1000&&m==1000){
// cout<<"YES\n";
// return;
// }
int posx=1+n-x_l,posy=1+m-y_l;
int xmax=n+n-x_l,ymax=m+m-y_l;
for(int i=0;i<=xmax;i++)
for(int j=0;j<=ymax;j++) a[i][j]=0;
a[posx][posy]=1;
for(int i=0;i<len;i++){
if(s[i]=='L') posy++;
if(s[i]=='R') posy--;
if(s[i]=='U') posx++;
if(s[i]=='D') posx--;
if(posx>=1&&posx<=xmax&&posy>=1&&posy<=ymax) a[posx][posy]=1;
}
for(int i=1;i<=xmax;i++){
for(int j=1;j<=ymax;j++) a[i][j]=a[i][j]+a[i-1][j]+a[i][j-1]-a[i-1][j-1];
}
int trg=(x_r-x_l+1)*(y_r-y_l+1)-k,ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(ask(i,j,i+x_r-x_l,j+y_r-y_l)==trg){
cerr<<" x="<<i<<" y="<<j<<'\n';
ans++;
}
}
}
cout<<ans<<'\n';
return;
}
void fst_IO(){
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
}
int main(){
fst_IO();
int T;
cin>>T;
while(T--){
slv();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3648kb
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: 128ms
memory: 5696kb
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: -100
Time Limit Exceeded
input:
1 1000 1000 979065 DDUULULUDULLULLDLUULURRLDURLRDLRRUURUUUDLRLUUDUUDUDLLDDDULU