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ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#61402 | #2615. Surround the Cat | tichec | TL | 0ms | 0kb | C++14 | 2.7kb | 2022-11-12 20:34:49 | 2022-11-12 20:34:52 |
Judging History
answer
#include <bits/stdc++.h>
#define up 100
using namespace std;
#define mkp make_pair
#define pb push_back
mt19937 mt(20080820);
int vist[1005][1005], flag = 6 * 9;
int f[405][405], wz[1005][1005];
int gs = 0;
bool check(int x,int y){
if(max(abs(x),abs(y))==9)return 1;
if(abs(x-y)==9)return 1;
return 0;
}
vector<pair<int, int>>v1, v2;
void del1(int x,int y){
for(auto cc=v1.begin();cc!=v1.end();cc++){
auto cu=*cc;
if(cu.first==x&&cu.second==y){v1.erase(cc);break;}
}
}
void del2(int x,int y){
for(auto cc=v2.begin();cc!=v2.end();cc++){
auto cu=*cc;
if(cu.first==x&&cu.second==y){v2.erase(cc);break;}
}
}
void opt(int x,int y){
if(!vist[x+up][y+up]){
vist[x+up][y+up]=1;
if(check(x,y))flag--;
}
del1(x,y);del2(x,y);
printf("%d %d\n",x,y);
}
void add(int x,int y,int xx,int yy){
int a=wz[x+up][y+up],b=wz[xx+up][yy+up];
if(a&&b)f[a][b]=f[b][a]=1;
}
int dis(int x,int y,int xx,int yy){
int a=wz[x+up][y+up],b=wz[xx+up][yy+up];
if(a&&b)return f[a][b];
return 1e9;
}
int main(){
int tot=0;
for(int i=-9;i<=9;i++){
int L=-9,R=9;
if(L<0)R=9+i;
else L=-9+i;
for(int j=L;j<=R;j++){
v1.pb(mkp(i,j));
wz[i+up][j+up]=++tot;
if(check(i,j))v2.pb(mkp(i,j));
}
}
memset(f,63,sizeof f);
for(int i=1;i<=tot;i++)f[i][i]=0;
for(auto vv:v1){
int X=vv.first,Y=vv.second;
add(X,Y,X,Y+1);
add(X,Y,X+1,Y);
add(X,Y,X+1,Y+1);
}
for(int k=1;k<=tot;k++)
for(int i=1;i<=tot;i++)
for(int j=1;j<=tot;j++)
f[i][j]=min(f[i][j],f[i][k]+f[k][j]);
int cx,cy;scanf("%d%d",&cx,&cy);
srand(time(NULL));
int xx=7;opt(xx,xx);
while(1){
if(scanf("%d%d",&cx,&cy)==EOF)return 0;
if(cx>cy&&!vist[xx+up][0+up]){opt(xx,0);continue;}
if(cy<0&&!vist[0+up][-xx+up]){opt(0,-xx);continue;}
if(cx<0&&!vist[-xx+up][-xx+up]){opt(-xx,-xx);continue;}
if(cx<cy&&!vist[-xx+up][0+up]){opt(-xx,0);continue;}
if(cy>0&&!vist[0+up][xx+up]){opt(0,xx);continue;}
if(cx>0&&!vist[xx+up][xx+up]){opt(xx,xx);continue;}
if(!flag){
auto dy=v1[mt()%v1.size()];
while(dy.first==cx&&dy.second==cy)dy=v1[mt()%v1.size()];
opt(dy.first,dy.second);
continue;
}
int mx=1e9;
for(auto cu:v2){
int dd=dis(cx,cy,cu.first,cu.second);
mx=min(mx,dd);
}
vector<pair<int, int>>g;
for(auto cu:v2){
int dd=dis(cx,cy,cu.first,cu.second);
if(dd==mx)g.pb(cu);
}
vector<pair<int,int>>gg;
mx=1e9;
for(auto cu:g){
int dd=0;
for(auto uc:g)dd+=dis(cu.first,cu.second,uc.first,uc.second);
if(mx>dd)mx=dd;
}for(auto cu:g){
int dd=0;
for(auto uc:g)dd+=dis(cu.first,cu.second,uc.first,uc.second);
if(mx==dd)gg.pb(cu);
}
auto dy=gg[mt()%gg.size()];
opt(dy.first, dy.second);
}
return 0;
}
詳細信息
Test #1:
score: 0
Time Limit Exceeded
input:
0 0