QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#551080 | #7733. Cool, It’s Yesterday Four Times More | HongMeiling# | TL | 0ms | 0kb | C++14 | 2.6kb | 2024-09-07 15:22:16 | 2024-09-07 15:22:16 |
answer
# include <bits/stdc++.h>
using namespace std;
const int mn=1000;
int T,n,m;
char Ar[mn+3];
inline int tow(int i,int j) {
return (i-1)*m+j;
}
inline char a(int i,int j) {
return Ar[(i-1)*m+j];
}
struct Kangaroo{
int x,y;
bool to[mn+3];
bool win;
}kan[mn+3];int tot=0;
queue<pair<int,int>>q;
const int tox[5]={0,-1,1,0,0};
const int toy[5]={0,0,0,-1,1};
bool OK(int x,int y) {
return x>=1 && x<=n && y>=1 && y<=m;
}
int main() {
cin>>T;
while(T--) {
tot=0;
memset(Ar,0,sizeof(Ar));
cin>>n>>m;
for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++) {
cin>>Ar[(i-1)*m+j];
if(Ar[(i-1)*m+j]=='.') {
kan[++tot].x=i;
kan[tot].y=j;
kan[tot].win=false;
}
}
}
for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++) {
if(Ar[(i-1)*m+j]!='.' &&Ar[(i-1)*m+j]!='0') {
while(true);
}
}
}
for(int k=1;k<=tot;k++) {
//bfs
for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++) {
kan[k].to[tow(i,j)]=false;
}
}
kan[k].to[tow(kan[k].x,kan[k].y)]=true;
q.push(make_pair(kan[k].x,kan[k].y));
while(!q.empty()) {
int x=q.front().first,y=q.front().second;
q.pop();
for(int dir=1;dir<=4;dir++) {
int nx=x+tox[dir],ny=y+toy[dir];
if(OK(nx,ny) && a(nx,ny)=='.' && !kan[k].to[tow(nx,ny)]) {
kan[k].to[tow(nx,ny)]=true;
q.push(make_pair(nx,ny));
}
}
}
/*for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++) {
cout<<kan[k].to[tow(i,j)];
}
cout<<endl;
}*/
}
for(int dx=-n;dx<=n;dx++)
for(int dy=-m;dy<=m;dy++) {
int winner=0;
for(int k=1;k<=tot;k++) {
int x=kan[k].x,y=kan[k].y;
if(OK(x+dx,y+dy) && kan[k].to[tow(x+dx,y+dy)]) {
if(winner==0) winner=k;
else goto NO;
}
}
if(winner!=0) kan[winner].win=true;
NO:;
}
int ans=0;
for(int k=1;k<=tot;k++)
if(kan[k].win) ans++;
cout<<ans<<endl;
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 0
Time Limit Exceeded
input:
4 2 5 .OO.. O..O. 1 3 O.O 1 3 .O. 2 3 OOO OOO