#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int mxN=3e5;
int n, p[mxN], a[mxN];
ll x[mxN], y[mxN], r[mxN];
unordered_map<ll, vector<int>> mp;
void rs(int k) {
mp.clear();
for(int i=0; i<n; ++i)
if(a[i]==-1)
mp[x[i]>>k<<32|y[i]>>k].push_back(i);
}
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n;
for(int i=0; i<n; ++i) {
cin >> x[i] >> y[i] >> r[i], x+=6969, y+=696969;
p[i]=i;
}
sort(p, p+n, [&](const int &a, const int &b) {
return r[a]==r[b]?a<b:r[a]>r[b];
});
memset(a, -1, 4*n);
for(int i=-1, k=30; i+1<n; --i, --k) {
rs(k);
while(++i<n&&r[p[i]]>=1<<(k-1)) {
if(a[p[i]]!=-1)
continue;
for(ll b=(x[p[i]]>>k)-2; b<=(x[p[i]]>>k)+2; ++b) {
for(ll c=(y[p[i]]>>k)-2; c<=(y[p[i]]>>k)+2; ++c) {
auto mf=mp.find(b<<32|c);
if(mf==mp.end())
continue;
int ns=0;
vector<int> &v=mf->second;
for(int j=0; j<v.size(); ++j) {
ll dx=x[p[i]]-x[v[j]], dy=y[p[i]]-y[v[j]], rs=r[p[i]]+r[v[j]];
if(dx*dx+dy*dy<=rs*rs)
a[v[j]]=p[i];
else
v[ns++]=v[j];
}
v.resize(ns);
}
}
}
}
for(int i=0; i<n; ++i)
cout << a[i]+1 << " ";
}
Compilation message
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:24:35: error: incompatible types in assignment of 'int' to 'long long int [300000]'
cin >> x[i] >> y[i] >> r[i], x+=6969, y+=696969;
^~~~
circle_selection.cpp:24:44: error: incompatible types in assignment of 'int' to 'long long int [300000]'
cin >> x[i] >> y[i] >> r[i], x+=6969, y+=696969;
^~~~~~
circle_selection.cpp:43:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0; j<v.size(); ++j) {
~^~~~~~~~~
