/*
:>
*/
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/rope>
using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;
random_device(rd);
mt19937 rng(rd());
const long long FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
struct custom_hash
{
template<class T>
unsigned long long operator()(T v) const
{
unsigned long long x = v;
x += FIXED_RANDOM; x += 11400714819323198485ull;
x = (x ^ (x >> 30)) * 13787848793156543929ull;
x = (x ^ (x >> 27)) * 10723151780598845931ull;
return x ^ (x >> 31);
}
};
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<class T, class U> using hash_table = gp_hash_table<T, U, custom_hash>;
template<class T>
void readi(T &x)
{
x = 0;
bool negative = false;
char c = ' ';
while (c < '-')
{
c = getchar();
}
if (c == '-')
{
negative = true;
c = getchar();
}
while (c >= '0')
{
x = x * 10 + (c - '0');
c = getchar();
}
if (negative)
{
x = -x;
}
}
template<class T>
void printi(T output)
{
if (output == 0)
{
putchar('0');
return;
}
if (output < 0)
{
putchar('-');
output = -output;
}
int buf[20], n = 0;
while(output)
{
buf[n] = ((output % 10));
output /= 10;
n++;
}
for (n--; n >= 0; n--)
{
putchar(buf[n] + '0');
}
return;
}
template<class T>
void ckmin(T &a, T b)
{
a = min(a, b);
}
template<class T>
void ckmax(T &a, T b)
{
a = max(a, b);
}
long long expo(long long a, long long e, long long mod)
{
return ((e == 0) ? 1 : ((expo(a * a % mod, e >> 1, mod)) * ((e & 1) ? a : 1) % mod));
}
template<class T, class U>
void nmod(T &x, U mod)
{
if (x >= mod) x -= mod;
}
template<class T>
T gcd(T a, T b)
{
return (b ? gcd(b, a % b) : a);
}
template<class T>
T randomize(T mod)
{
return (uniform_int_distribution<T>(0, mod - 1))(rng);
}
#define y0 ___y0
#define y1 ___y1
#define MP make_pair
#define MT make_tuple
#define PB push_back
#define PF push_front
#define fi first
#define se second
#define debug(x) cerr << #x << " = " << x << endl;
#define SZ(x) ((int) (x.size()))
const long double PI = 4.0 * atan(1.0);
const long double EPS = 1e-9;
#define MAGIC 347
#define SINF 10007
#define CO 1000007
#define INF 1000000007
#define BIG 1000000931
#define LARGE 1696969696967ll
#define GIANT 2564008813937411ll
#define LLINF 2696969696969696969ll
#define MAXN 300013
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pdd;
typedef pair<pll, pll> ppp;
int N;
ppp arr[MAXN];
int ans[MAXN];
struct cmp
{
bool operator() (const ppp &a, const ppp &b) const
{
if (a.fi.fi != b.fi.fi)
{
return a.fi.fi > b.fi.fi;
}
return a.fi.se < b.fi.se;
}
};
bool cmp(ppp a, ppp b)
{
if (a.fi.fi != b.fi.fi)
{
return a.fi.fi > b.fi.fi;
}
return a.fi.se < b.fi.se;
}
ll dist(pll a, pll b)
{
return (a.fi - b.fi) * (a.fi - b.fi) + (a.se - b.se) * (a.se - b.se);
}
bool intersect(ppp a, ppp b)
{
return dist(a.se, b.se) <= (a.fi.fi + b.fi.fi) * (a.fi.fi + b.fi.fi);
}
hash_table<ll, hash_table<ll, vector<ppp> > > stor;
void clean(vector<ppp> &x, ppp c)
{
int cid = c.fi.se;
vector<ppp> res;
for (ppp p : x)
{
if (intersect(p, c))
{
ans[p.fi.se] = c.fi.se;
// cerr << c.fi.se << " kills " << p.fi.se << endl;
}
else
{
res.PB(p);
}
}
x = res;
return;
}
int32_t main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
// cout << fixed << setprecision(10);
// cerr << fixed << setprecision(10);
freopen ("file.in", "r", stdin);
freopen ("file.out", "w", stdout);
readi(N);
for (int i = 0; i < N; i++)
{
readi(arr[i].se.fi); readi(arr[i].se.se); readi(arr[i].fi.fi); arr[i].fi.se = i;
arr[i].se.fi += INF; arr[i].se.se += INF;
ans[i] = -1;
}
sort(arr, arr + N, cmp);
int iter = 0;
for (int i = 35; i >= 3; i--)
{
//all circles of radius [2^i - 1...2^i)
ll block = (1ll << i);
stor.clear();
for (int j = 0; j < N; j++)
{
if (ans[arr[j].fi.se] != -1) continue;
ll x = arr[j].se.fi, y = arr[j].se.se;
stor[(x / block) * block][(y / block) * block].PB(arr[j]);
}
while(iter < N && arr[iter].fi.fi >= (block / 8))
{
if (ans[arr[iter].fi.se] != -1)
{
iter++;
continue;
}
ppp cur = arr[iter]; ll bx = cur.se.fi / block, by = cur.se.se / block;
// cerr << "dye " << cur.fi.se << endl;
// for (int j = -1; j <= 1; j++)
// {
// for (int k = -1; k <= 1; k++)
// {
clean(stor[(bx + 0) * block][(by + 0) * block], cur);
// }
// }
iter++;
}
}
for (int i = 0; i < N; i++)
{
ans[i]++;
if (i) putchar(' ');
printi(ans[i]);
}
putchar('\n');
// cerr << "time elapsed = " << (clock() / (CLOCKS_PER_SEC / 1000)) << " ms" << endl;
return 0;
}
Compilation message
circle_selection.cpp: In function 'void clean(std::vector<std::pair<std::pair<long long int, long long int>, std::pair<long long int, long long int> > >&, ppp)':
circle_selection.cpp:186:6: warning: unused variable 'cid' [-Wunused-variable]
int cid = c.fi.se;
^~~
circle_selection.cpp: In function 'int32_t main()':
circle_selection.cpp:209:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
freopen ("file.in", "r", stdin);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
circle_selection.cpp:210:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
freopen ("file.out", "w", stdout);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3048 ms |
376 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3054 ms |
432 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3037 ms |
492 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3049 ms |
492 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3048 ms |
376 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3048 ms |
376 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
