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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#627638 | #7757. Palm Island | 53Dawns | TL | 0ms | 0kb | C++20 | 2.4kb | 2024-10-10 16:34:39 | 2024-10-10 16:34:39 |
answer
#include <bits/stdc++.h>
// #include <bits/extc++.h>
#pragma GCC optimize (1)
#pragma GCC optimize (2)
#pragma GCC optimize (3)
// #define int long long
#define IOS ios::sync_with_stdio(0),cin.tie(0)
// using namespace __gnu_pbds;
using namespace std;
const int N=2e5+10,M=1e6+10,mod=1e9+7;
vector<int>ans;
deque<array<int,5>>d;
deque<int>c;
int L[N],R[N];
inline void f2(){
if(d.size()<=1) return;
auto x=d[0];
d.pop_front();
int s=d[0][2];
while(s--){
ans.push_back(2);
}
d.push_back(d[0]);
d.pop_front();
d.push_front(x);
}
inline int check(){
if(d.size()<=1) return 0;
return d[0][1]==d[1][3];
}
void sol(int cases) {
int n;
cin>>n;
c.clear();
d.clear();
ans.clear();
vector<int>a(n+1),b(n+1);
for(int i=1;i<=n;++i){
cin>>a[i];
c.push_back(a[i]);
}
for(int i=1;i<=n;++i){
cin>>b[i];
}
for(int i=1;i<=n;++i){
if(i==1){
L[b[i]]=b[n];
R[b[i]]=b[i+1];
}else if(i==n){
L[b[i]]=b[i-1];
R[b[i]]=b[1];
}else{
L[b[i]]=b[i-1];
R[b[i]]=b[i+1];
}
}
for(int i=1;i<=n;++i){
d.push_back({L[a[i]],R[a[i]],1,a[i],a[i]});
}
while(d.size()>1){
int k=d.size();
while(d[0][1]!=d[1][3]){
f2();
}
while(check()){
auto x=d[0];
d.pop_front();
auto y=d[0];
d.pop_front();
d.push_front({x[0],y[1],x[2]+y[2],x[3],y[4]});
}
int s=d[0][2];
while(s--){
ans.push_back(1);
}
while(d.size()>1&&d[0][2]!=1){
d.push_back(d[0]);
d.pop_front();
}
}
for(auto x:ans){
if(x==1){
c.push_back(c[0]);
c.pop_front();
}else{
auto &y=c[0];
c.pop_front();
c.push_back(c[0]);
c.pop_front();
c.push_front(y);
}
}
while(c[0]!=b[1]){
c.push_back(c[0]);
c.pop_front();
ans.push_back(1);
}
for(auto &x:ans) cout<<x;
cout<<'\n';
}
signed main(){
IOS;
int t=1;
// cin>>t;
for(int i=1;i<=t;++i){
sol(i);
}
return 0;
}
Details
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Test #1:
score: 0
Time Limit Exceeded
input:
2 3 1 2 3 2 3 1 4 1 2 3 4 2 1 3 4