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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#261437 | #6398. Puzzle: Tapa | 1677118046 | WA | 1ms | 4016kb | C++17 | 2.7kb | 2023-11-22 21:42:12 | 2023-11-22 21:42:12 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
const int nn=1e2+10;
char s[nn][nn];
ll getid(int x,int y){
return x*nn+y;
}
pair<ll,ll>getxy(ll x){
pair<ll,ll>ss;
ss.first=x/nn;
ss.second=x%nn;
return ss;
}
ll getnum(char x){
return x-'0';
}
vector<ll>A;//表示进行匹配的点
vector<ll>XX[nn*nn];//图的匹配
int pos[nn][nn];//表示当前位置是匹配还是被匹配的
int vis[nn][nn];//表示当前位置是否跑过了
int dx[]={0,0,2,-2};
int dy[]={2,-2,0,0};
int n,m;
vector<ll>B;//被匹配的点
bool check(int x,int y,int i,int j){
if(x<=0)return false;
if(x>=2*n)return false;
if(y<=0)return false;
if(y>=2*m)return false;
ll num=getnum(s[x][y]);
if(num==3||num==5||num==8)return false;
if(i==1||i==2*n-1){
if(j==1||j==2*m-1)return true;
if(x!=i)return false;
}
if(j==1||j==2*m-1){
if(x==1||x==2*n-1)return true;
if(y!=j)return false;
}
return true;
}
void build(){
cin>>n>>m;
for(int i=1;i<2*n;i++){
for(int j=1;j<2*m;j++){
cin>>s[i][j];
if(s[i][j]=='.')s[i][j]='#';
}
}
for(int i=1;i<2*n;i+=2){
for(int j=1;j<2*m;j+=2){
ll nu=getid(i,j);
ll num=getnum(s[i][j]);
vis[i][j]++;
for(int k=0;k<=3;k++){
int nx=i+dx[k];
int ny=j+dy[k];
if(!check(nx,ny,i,j))continue;
pos[nx][ny]=!pos[i][j];
}
if(num==3||num==5||num==8)continue;
if(pos[i][j]==0){
A.push_back(nu);
for(int k=0;k<=3;k++){
int nx=i+dx[k];
int ny=j+dy[k];
if(!check(nx,ny,i,j))continue;
if(vis[nx][ny])continue;
XX[nu].push_back(getid(nx,ny));
}
}else{
B.push_back(nu);
for(int k=0;k<=3;k++){
int nx=i+dx[k];
int ny=j+dy[k];
if(!check(nx,ny,i,j))continue;
if(vis[nx][ny])continue;
ll an=getid(nx,ny);
XX[an].push_back(nu);
}
}
}
}
}
ll pos1[nn*nn];//表示一个数所对应的位置
unordered_map<int, int>vis1;//匹配中避免循环
int pipei(int x) {
for (auto i : XX[x]) {
if (vis1[i] == 1)continue;
vis1[i] = 1;
if (pos1[i] == -1 || pipei(pos1[i])) {
pos1[i] = x;
return 1;
}
}
return 0;
}
void solve(){//跑匈牙利
memset(pos1,-1,sizeof pos1);
build();
ll sz1,sz2;
sz1=A.size();sz2=B.size();
if(sz2!=sz1){
cout<<"NO"<<"\n";return;
}
for(auto ii:A){
vis1.clear();
if(pipei(ii)==0){
cout<<"NO"<<"\n";return;
}
}
cout<<"YSE"<<"\n";
for(auto ii:B){
pair<ll,ll>ID1=getxy(ii);
pair<ll,ll>ID2=getxy(pos1[ii]);
s[(ID1.first+ID2.second)/2][(ID1.second+ID2.second)/2]='.';
}
for(int i=1;i<2*n;i++){
for(int j=1;j<2*m;j++){
cout<<s[i][j];
}
cout<<"\n";
}
}
int main(){
ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
solve();
}
Details
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Test #1:
score: 0
Wrong Answer
time: 1ms
memory: 4016kb
input:
3 3 2.4.3 ..... 5.8.5 ..... 3.5.3
output:
YSE 2.4#3 ##### 5#8#5 ##### 3#5#3
result:
wrong answer YES or NO expected in answer, but YSE found.