This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "monster.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> Solve(int n){
mt19937 rng(777);
map<pair<int,int>,bool> memo;
auto query=[&](int x,int y){
if(memo.count({x,y}))return memo[{x,y}];
bool res=Query(x,y);
memo[{x,y}]=res;
memo[{y,x}]=!res;
return res;
};
vector<int> a(n),b(n);
function<void(int,int)> msort=[&](int l,int r){
if(l==r)return;
int m=(l+r)/2;
msort(l,m);
msort(m+1,r);
for(int i=l,j=m+1,p=l;p<=r;p++){
if(j>r||(i<=m&&!query(a[i],a[j]))){
b[p]=a[i++];
}else{
b[p]=a[j++];
}
}
for(int i=l;i<=r;i++)a[i]=b[i];
};
iota(a.begin(),a.end(),0);
msort(0,n-1);
auto check=[&](int x){
int cnt=0;
for(int i=0;i<n;i++){
if(i==x)continue;
if(query(a[x],a[i])){
cnt++;
if(cnt>1){
return false;
}
}
}
return true;
};
bool ok0=check(0),ok1=check(1);
int st=-1;
if(ok0){
if(ok1){
for(int i=2;i<n;i++){
bool v0=query(a[i],a[0]);
bool v1=query(a[i],a[1]);
assert(v0||v1);
if(v0^v1){
st=v1;
break;
}
}
}else{
st=0;
}
}
if(st==-1){
st=2;
while((query(a[st-1],a[st])||query(a[st],a[0]))){
st++;
assert(st<n);
}
}
reverse(a.begin(),a.begin()+st+1);
for(int i=st+1;i<n;i++){
int j=i;
while(!query(a[i-1],a[j])){
j++;
assert(j<n);
}
reverse(a.begin()+i,a.begin()+j+1);
i=j;
}
vector<int> ans(n);
for(int i=0;i<n;i++)ans[a[i]]=i;
return ans;
}
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