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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#689944 | #5414. Stop, Yesterday Please No More | blackfrog | WA | 4ms | 9804kb | C++14 | 3.3kb | 2024-10-30 19:21:57 | 2024-10-30 19:21:58 |
Judging History
answer
#include<iostream>
#include<algorithm>
#include<cmath>
using namespace std;
#define im INT_MAX;
int n,m,k;
int kil[2145][2145],prelu[2145][2145];
struct vec{int x;int y;}op[1145141];
bool lpc(vec i,vec j){
if(i.x==j.x)return i.y<j.y;
return i.x<j.x;
}
void solve(){
cin>>n>>m>>k;
string s;cin>>s;
vec cur;cur.x=0;cur.y=0;
op[1]=cur;
for(int i=0;i<s.length();i++){
if(s[i]=='U')cur.x++;
if(s[i]=='D')cur.x--;
if(s[i]=='L')cur.y++;
if(s[i]=='R')cur.y--;
op[i+1]=cur;
}
int cntop=s.length()+1;
sort(op+1,op+cntop+1,lpc);
// for(int i=1;i<=cntop;i++){
// cout<<"x "<<op[i].x<<" y "<<op[i].y<<"\n";
// }
// cout<<"\n\n\n";
int addx=n,addy=m;
for(int i=1;i<=cntop;i++){
op[i].x+=addx;
op[i].y+=addy;
}
int ml=1,mr=m,mu=1,md=n;
int curl=1,curr=m,curu=1,curd=n;
for(int i=0;i<s.length();i++){
if(s[i]=='U')curu++,curd++;
if(s[i]=='D')curu--,curd--;
if(s[i]=='L')curr++,curl++;
if(s[i]=='R')curr--,curl--;
ml=max(curl,ml);
mr=min(curr,mr);
mu=max(curu,mu);
md=min(curd,md);
}
if((ml>m)||(mr<1)||(mu>n)||(md<1)||(mr<ml)||(md<mu)){
if(k==0)cout<<n*m<<"\n";else cout<<"0\n";return;
}
// cout<<ml<<" "<<mr<<" "<<mu<<" "<<md<<"\n\n\n";
int holx=n,holy=m;
for(int i=0;i<=2*n;i++){
for(int j=0;j<=2*m;j++){
kil[i][j]=prelu[i][j]=/*preru[i][j]=preld[i][j]=prerd[i][j]=*/0;
}
}
for(int i=1;i<=cntop;i++){
if(op[i].x<1 || op[i].x>2*n-1 || op[i].y<1 || op[i].y>2*m-1)continue;
kil[op[i].x][op[i].y]=1;
}
// for(int i=1;i<=2*n-1;i++){
// for(int j=1;j<=2*m-1;j++){
// cout<<kil[i][j]<<" ";
// }
// cout<<"\n";
// }
// cout<<"\n\n\n";
for(int i=1;i<=2*n-1;i++){
for(int j=1;j<=2*m-1;j++){
prelu[i][j]=prelu[i][j-1]+prelu[i-1][j]-prelu[i-1][j-1]+kil[i][j];
}
}
// for(int i=2*n-1;i>=1;i--){
// for(int j=1;j<=2*m-1;j++){
// preld[i][j]=preld[i][j-1]+preld[i+1][j]-preld[i+1][j-1]+kil[i][j];
// }
// }
// for(int i=1;i<=2*n-1;i++){
// for(int j=2*m-1;j>=1;j--){
// preru[i][j]=preru[i][j+1]+preru[i-1][j]-preru[i-1][j+1]+kil[i][j];
// }
// }
// for(int i=2*n-1;i>=1;i--){
// for(int j=2*m-1;j>=1;j--){
// prerd[i][j]=prerd[i][j+1]+prerd[i+1][j]-prerd[i+1][j+1]+kil[i][j];
// }
// }
int nowalive=(mr-ml+1)*(md-mu+1);
if(k>nowalive){
cout<<"0\n";return;
}
int ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
vec rd;rd.x=md-i+n;rd.y=mr-j+m;
vec ru;ru.x=mu-i+n;ru.y=mr-j+m;
vec ld;ld.x=md-i+n;ld.y=ml-j+m;
vec lu;lu.x=mu-i+n;lu.y=ml-j+m;
int restalive=nowalive-(prelu[rd.x][rd.y]-prelu[ru.x-1][ru.y]-prelu[ld.x][ld.y-1]+prelu[lu.x-1][lu.y-1]);
if(restalive==k)ans++;
}
}
cout<<ans<<"\n";
}
int main(){
ios::sync_with_stdio(0);
int T;cin>>T;
for(int jb=1;jb<=T;jb++){
solve();
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 7652kb
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: 9804kb
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 19 15 19 240 10 0 0 20 8 18 13 16 1 8 0 24 2 2 0 16 1 20 16 21 0 8 10 9 15 0 320 11 2 0 0 0 12 0 0 0 0 8 0 22 5 51 11 7 6 4 2 48 28 8 63 11 0 0 10 4 108 10 9 44 0 15 1 0 4 30 26 0 105 10 26 17 0 66 2 11 28 0 20 56 22 15 56 90 14 0 121 0 48 40 36 13 0 30 7 20 3 11 0 0 19 18 0 38 0 34 0 6...
result:
wrong answer 5th numbers differ - expected: '18', found: '19'