#include <bits/stdc++.h>
#include "sphinx.h"
using namespace std;
#define fi first
#define se second
#define pb push_back
const int nax = 5e5+5;
std::vector<int> find_colours(int N, std::vector<int> X, std::vector<int> Y) {
vector<int> parent(N);
vector<int> cur;
cur.push_back(0);
for (int i = 0; i < N; ++i) parent[i]=i;
for (int i = 1; i < N; ++i)
{
int l=-1;
int r=cur.size();
while(r-l>1){
int mid=(r+l)/2;
vector<int> cnt(N,N);
cnt[i]=-1;
for (int j = 0; j <= mid; ++j)
{
cnt[cur[j]]=-1;
}
if(perform_experiment(cnt)-(i<N-1&&mid<cur.size()-1)<=mid+1) r=mid;
else l=mid;
}
if(r==cur.size()) cur.push_back(i);
else parent[i]=cur[r];
}
return parent;
}
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