#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;
unordered_set<ll> s;
void rs(int k) {
mp.clear();
s.clear();
for(int i=0; i<n; ++i) {
if(a[i]==-1) {
mp[x[i]>>k<<32|y[i]>>k].push_back(i);
s.insert(x[i]>>k);
}
}
}
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];
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) {
if(s.find(b)==s.end())
continue;
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:50:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int j=0; j<v.size(); ++j) {
~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
380 KB |
Output is correct |
| 2 |
Correct |
2 ms |
508 KB |
Output is correct |
| 3 |
Correct |
2 ms |
508 KB |
Output is correct |
| 4 |
Correct |
2 ms |
528 KB |
Output is correct |
| 5 |
Correct |
2 ms |
528 KB |
Output is correct |
| 6 |
Correct |
2 ms |
628 KB |
Output is correct |
| 7 |
Correct |
2 ms |
628 KB |
Output is correct |
| 8 |
Correct |
3 ms |
628 KB |
Output is correct |
| 9 |
Correct |
3 ms |
628 KB |
Output is correct |
| 10 |
Correct |
3 ms |
628 KB |
Output is correct |
| 11 |
Correct |
3 ms |
628 KB |
Output is correct |
| 12 |
Correct |
3 ms |
628 KB |
Output is correct |
| 13 |
Correct |
3 ms |
628 KB |
Output is correct |
| 14 |
Correct |
2 ms |
628 KB |
Output is correct |
| 15 |
Correct |
2 ms |
628 KB |
Output is correct |
| 16 |
Correct |
3 ms |
628 KB |
Output is correct |
| 17 |
Correct |
3 ms |
628 KB |
Output is correct |
| 18 |
Correct |
3 ms |
628 KB |
Output is correct |
| 19 |
Correct |
5 ms |
864 KB |
Output is correct |
| 20 |
Correct |
6 ms |
864 KB |
Output is correct |
| 21 |
Correct |
8 ms |
880 KB |
Output is correct |
| 22 |
Correct |
22 ms |
1408 KB |
Output is correct |
| 23 |
Correct |
20 ms |
1408 KB |
Output is correct |
| 24 |
Correct |
17 ms |
1408 KB |
Output is correct |
| 25 |
Correct |
26 ms |
1424 KB |
Output is correct |
| 26 |
Correct |
22 ms |
1424 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
257 ms |
12136 KB |
Output is correct |
| 2 |
Correct |
257 ms |
12516 KB |
Output is correct |
| 3 |
Correct |
265 ms |
12516 KB |
Output is correct |
| 4 |
Correct |
235 ms |
12516 KB |
Output is correct |
| 5 |
Correct |
501 ms |
15032 KB |
Output is correct |
| 6 |
Correct |
1303 ms |
29376 KB |
Output is correct |
| 7 |
Correct |
511 ms |
29376 KB |
Output is correct |
| 8 |
Correct |
624 ms |
29376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
29376 KB |
Output is correct |
| 2 |
Correct |
527 ms |
29376 KB |
Output is correct |
| 3 |
Correct |
2419 ms |
29376 KB |
Output is correct |
| 4 |
Correct |
2290 ms |
29376 KB |
Output is correct |
| 5 |
Correct |
1972 ms |
29376 KB |
Output is correct |
| 6 |
Correct |
700 ms |
29376 KB |
Output is correct |
| 7 |
Correct |
305 ms |
29376 KB |
Output is correct |
| 8 |
Correct |
58 ms |
29376 KB |
Output is correct |
| 9 |
Correct |
2299 ms |
29376 KB |
Output is correct |
| 10 |
Correct |
2003 ms |
29376 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1548 ms |
29376 KB |
Output is correct |
| 2 |
Execution timed out |
3037 ms |
49676 KB |
Time limit exceeded |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
380 KB |
Output is correct |
| 2 |
Correct |
2 ms |
508 KB |
Output is correct |
| 3 |
Correct |
2 ms |
508 KB |
Output is correct |
| 4 |
Correct |
2 ms |
528 KB |
Output is correct |
| 5 |
Correct |
2 ms |
528 KB |
Output is correct |
| 6 |
Correct |
2 ms |
628 KB |
Output is correct |
| 7 |
Correct |
2 ms |
628 KB |
Output is correct |
| 8 |
Correct |
3 ms |
628 KB |
Output is correct |
| 9 |
Correct |
3 ms |
628 KB |
Output is correct |
| 10 |
Correct |
3 ms |
628 KB |
Output is correct |
| 11 |
Correct |
3 ms |
628 KB |
Output is correct |
| 12 |
Correct |
3 ms |
628 KB |
Output is correct |
| 13 |
Correct |
3 ms |
628 KB |
Output is correct |
| 14 |
Correct |
2 ms |
628 KB |
Output is correct |
| 15 |
Correct |
2 ms |
628 KB |
Output is correct |
| 16 |
Correct |
3 ms |
628 KB |
Output is correct |
| 17 |
Correct |
3 ms |
628 KB |
Output is correct |
| 18 |
Correct |
3 ms |
628 KB |
Output is correct |
| 19 |
Correct |
5 ms |
864 KB |
Output is correct |
| 20 |
Correct |
6 ms |
864 KB |
Output is correct |
| 21 |
Correct |
8 ms |
880 KB |
Output is correct |
| 22 |
Correct |
22 ms |
1408 KB |
Output is correct |
| 23 |
Correct |
20 ms |
1408 KB |
Output is correct |
| 24 |
Correct |
17 ms |
1408 KB |
Output is correct |
| 25 |
Correct |
26 ms |
1424 KB |
Output is correct |
| 26 |
Correct |
22 ms |
1424 KB |
Output is correct |
| 27 |
Correct |
10 ms |
49676 KB |
Output is correct |
| 28 |
Correct |
10 ms |
49676 KB |
Output is correct |
| 29 |
Correct |
10 ms |
49676 KB |
Output is correct |
| 30 |
Correct |
38 ms |
49676 KB |
Output is correct |
| 31 |
Correct |
46 ms |
49676 KB |
Output is correct |
| 32 |
Correct |
39 ms |
49676 KB |
Output is correct |
| 33 |
Correct |
85 ms |
49676 KB |
Output is correct |
| 34 |
Correct |
80 ms |
49676 KB |
Output is correct |
| 35 |
Correct |
89 ms |
49676 KB |
Output is correct |
| 36 |
Correct |
715 ms |
49676 KB |
Output is correct |
| 37 |
Correct |
387 ms |
49676 KB |
Output is correct |
| 38 |
Correct |
367 ms |
49676 KB |
Output is correct |
| 39 |
Correct |
712 ms |
49676 KB |
Output is correct |
| 40 |
Correct |
722 ms |
49676 KB |
Output is correct |
| 41 |
Correct |
739 ms |
49676 KB |
Output is correct |
| 42 |
Correct |
243 ms |
49676 KB |
Output is correct |
| 43 |
Correct |
645 ms |
49676 KB |
Output is correct |
| 44 |
Correct |
651 ms |
49676 KB |
Output is correct |
| 45 |
Correct |
735 ms |
49676 KB |
Output is correct |
| 46 |
Correct |
764 ms |
49676 KB |
Output is correct |
| 47 |
Correct |
769 ms |
49676 KB |
Output is correct |
| 48 |
Correct |
811 ms |
49676 KB |
Output is correct |
| 49 |
Correct |
753 ms |
49676 KB |
Output is correct |
| 50 |
Correct |
633 ms |
49676 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
380 KB |
Output is correct |
| 2 |
Correct |
2 ms |
508 KB |
Output is correct |
| 3 |
Correct |
2 ms |
508 KB |
Output is correct |
| 4 |
Correct |
2 ms |
528 KB |
Output is correct |
| 5 |
Correct |
2 ms |
528 KB |
Output is correct |
| 6 |
Correct |
2 ms |
628 KB |
Output is correct |
| 7 |
Correct |
2 ms |
628 KB |
Output is correct |
| 8 |
Correct |
3 ms |
628 KB |
Output is correct |
| 9 |
Correct |
3 ms |
628 KB |
Output is correct |
| 10 |
Correct |
3 ms |
628 KB |
Output is correct |
| 11 |
Correct |
3 ms |
628 KB |
Output is correct |
| 12 |
Correct |
3 ms |
628 KB |
Output is correct |
| 13 |
Correct |
3 ms |
628 KB |
Output is correct |
| 14 |
Correct |
2 ms |
628 KB |
Output is correct |
| 15 |
Correct |
2 ms |
628 KB |
Output is correct |
| 16 |
Correct |
3 ms |
628 KB |
Output is correct |
| 17 |
Correct |
3 ms |
628 KB |
Output is correct |
| 18 |
Correct |
3 ms |
628 KB |
Output is correct |
| 19 |
Correct |
5 ms |
864 KB |
Output is correct |
| 20 |
Correct |
6 ms |
864 KB |
Output is correct |
| 21 |
Correct |
8 ms |
880 KB |
Output is correct |
| 22 |
Correct |
22 ms |
1408 KB |
Output is correct |
| 23 |
Correct |
20 ms |
1408 KB |
Output is correct |
| 24 |
Correct |
17 ms |
1408 KB |
Output is correct |
| 25 |
Correct |
26 ms |
1424 KB |
Output is correct |
| 26 |
Correct |
22 ms |
1424 KB |
Output is correct |
| 27 |
Correct |
257 ms |
12136 KB |
Output is correct |
| 28 |
Correct |
257 ms |
12516 KB |
Output is correct |
| 29 |
Correct |
265 ms |
12516 KB |
Output is correct |
| 30 |
Correct |
235 ms |
12516 KB |
Output is correct |
| 31 |
Correct |
501 ms |
15032 KB |
Output is correct |
| 32 |
Correct |
1303 ms |
29376 KB |
Output is correct |
| 33 |
Correct |
511 ms |
29376 KB |
Output is correct |
| 34 |
Correct |
624 ms |
29376 KB |
Output is correct |
| 35 |
Correct |
2 ms |
29376 KB |
Output is correct |
| 36 |
Correct |
527 ms |
29376 KB |
Output is correct |
| 37 |
Correct |
2419 ms |
29376 KB |
Output is correct |
| 38 |
Correct |
2290 ms |
29376 KB |
Output is correct |
| 39 |
Correct |
1972 ms |
29376 KB |
Output is correct |
| 40 |
Correct |
700 ms |
29376 KB |
Output is correct |
| 41 |
Correct |
305 ms |
29376 KB |
Output is correct |
| 42 |
Correct |
58 ms |
29376 KB |
Output is correct |
| 43 |
Correct |
2299 ms |
29376 KB |
Output is correct |
| 44 |
Correct |
2003 ms |
29376 KB |
Output is correct |
| 45 |
Correct |
1548 ms |
29376 KB |
Output is correct |
| 46 |
Execution timed out |
3037 ms |
49676 KB |
Time limit exceeded |
| 47 |
Halted |
0 ms |
0 KB |
- |
