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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#722032 | #9564. Hey, Have You Seen My Kangaroo? | ucup-team902 | WA | 4ms | 17880kb | C++20 | 3.8kb | 2024-11-07 17:30:54 | 2024-11-07 17:30:54 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define cs const
#define re register
#define pb push_back
#define y0 sxxxxx
#define pii pair<int, int>
#define ll long long
#define fi first
#define se second
#define bg begin
namespace IO{
cs int RLEN=1<<22|1;
char ibuf[RLEN],*ib,*ob;
inline char gc(){
(ib==ob)&&(ob=(ib=ibuf)+fread(ibuf,1,RLEN,stdin));
return (ib==ob)?EOF:*ib++;
}
inline int read(){
char ch=gc();
int res=0;bool f=1;
while(!isdigit(ch))f^=ch=='-',ch=gc();
while(isdigit(ch))res=(res*10)+(ch^48),ch=gc();
return f?res:-res;
}
inline ll readll(){
char ch=gc();
ll res=0;bool f=1;
while(!isdigit(ch))f^=ch=='-',ch=gc();
while(isdigit(ch))res=(res*10)+(ch^48),ch=gc();
return f?res:-res;
}
inline char readchar(){
char ch=gc();
while(isspace(ch))ch=gc();
return ch;
}
inline int readstring(char *s){
int top=0;char ch=gc();
while(isspace(ch))ch=gc();
while(!isspace(ch)&&ch!=EOF)s[++top]=ch,ch=gc();
s[top+1]='\0';return top;
}
}
using IO::read;
using IO::readll;
using IO::readchar;
using IO::readstring;
template <typename tp>
inline void chemx(tp &a, tp b) { (a < b) ? (a = b) : 0; }
template <typename tp>
inline void chemn(tp &a, tp b) { (a > b) ? (a = b) : 0; }
cs int N=200005;
vector<vector<int>>a,g;
int n,m,k;
char s[205],ss[N];
vector<int>e[N];
set<int>son[N];
int inq[N],d[N],sn[N];
int ans;
int out[N];
pii ps[N];
int id(int i,int j){
return (i-1)*m+j;
}
void solve(){
n=read(),m=read(),k=read();
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++)
ps[id(i,j)]=pii(i,j);
a.resize(n+2);g.resize(n+2);
for(int i=0;i<=n+1;i++)a[i].resize(m+2,0),g[i].resize(m+2,0);
readstring(s);
for(int i=1;i<=n;i++){
//readstring(ss);
for(int j=1;j<=m;j++)a[i][j]=1,ans+=a[i][j];
}
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++)if(a[i][j]==1){
int x=i,y=j;
for(int l=1;l<=k;l++){
int px=x,py=y;
if(s[l]=='U'){
px--;
}
if(s[l]=='D'){
px++;
}
if(s[l]=='L'){
py--;
}
if(s[l]=='R'){
py++;
}
if(px<1||px>n||py<1||py>m)continue;
if(a[px][py]==0)continue;
x=px,y=py;
}
d[id(x,y)]++;
sn[id(x,y)]++;
son[id(x,y)].insert(id(i,j));
e[id(i,j)].pb(id(x,y));
}
queue<int> q;
for(int i=1;i<=n*m;i++)inq[i]=1;
for(int i=1;i<=n*m;i++)if(!d[i])q.push(i);
while(q.size()){
int u=q.front();q.pop();
inq[u]=0;
for(int v:e[u]){
d[v]--;
if(d[v]==0)q.push(v);
}
}
vector<int> leaf;//nd:deg>1
set<int>nd;
for(int i=1;i<=n*m;i++)if(sn[i]>1)nd.insert(i);
for(int i=1;i<=n*m;i++)if(sn[i]==0)leaf.pb(i);
int ti=0;
for(int t=1;t<=n*m;t++){
if(!leaf.size())break;
vector<pii> idx;
for(int x:nd){
for(int y:son[x]){
idx.pb(ps[y]);
}
}
//for(pii v:idx)cout<<v.fi<<" "<<v.se<<'\n';
for(int i=1;i<=k;i++){
// cout<<"Now "<<i<<'\n';
vector<pii> nid;
for(pii v:idx){
int px=v.fi,py=v.se;
if(s[i]=='U'){
px--;
}
if(s[i]=='D'){
px++;
}
if(s[i]=='L'){
py--;
}
if(s[i]=='R'){
py++;
}
if(px<1||px>n||py<1||py>m);
else if(a[px][py]==0);
else v=pii(px,py);
// cout<<v.fi<<" "<<v.se<<'\n';
if(g[v.fi][v.se]){
ans--;
out[ans]=i+(t-1)*k;
}
else{
g[v.fi][v.se]=1;
nid.pb(v);
}
}
for(pii v:nid){
g[v.fi][v.se]=0;
}
idx=nid;
}
vector<int>newleaf;
for(int x:leaf){
for(int v:e[x]){
sn[v]--;
if(sn[v]==0)newleaf.pb(v);
if(sn[v]==1)nd.erase(nd.find(v));
son[v].erase(son[v].find(x));
}
}
leaf=newleaf;
}
for(int i=1;i<ans;i++)out[i]=-1;
for(int i=1;i<=n*m;i++)cout<<out[i]<<'\n';
}
int main() {
#ifdef Stargazer
freopen("1.in","r",stdin);
freopen("1.out","w",stdout);
#endif
int T = 1;
while (T--) solve();
}
Details
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Test #1:
score: 0
Wrong Answer
time: 4ms
memory: 17880kb
input:
3 3 6 ULDDRR 010 111 010
output:
6 4 4 2 2 1 1 1 0
result:
wrong answer 1st numbers differ - expected: '-1', found: '6'