이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,abm,popcnt,mmx")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef double db;
typedef long double ldb;
typedef complex<double> cd;
constexpr ll INF64 = 9'000'000'000'000'000'000, INF32 = 2'000'000'000, MOD = 1'000'000'007;
constexpr db PI = acos(-1);
constexpr bool IS_FILE = false, IS_TEST_CASES = false;
random_device rd;
mt19937 rnd32(rd());
mt19937_64 rnd64(rd());
template<typename T>
bool assign_max(T& a, T b) {
if (b > a) {
a = b;
return true;
}
return false;
}
template<typename T>
bool assign_min(T& a, T b) {
if (b < a) {
a = b;
return true;
}
return false;
}
template<typename T>
T square(T a) {
return a * a;
}
template<>
struct std::hash<pair<ll, ll>> {
ll operator() (pair<ll, ll> p) const {
return ((__int128)p.first * MOD + p.second) % INF64;
}
};
struct circle {
ll x, y, r, id;
circle(ll x = 0, ll y = 0, ll r = 0, ll id = 0): x(x), y(y), r(r), id(id) {}
bool operator<(const circle c2) const {
return c2.r < r;
}
bool check(circle c2) {
return square(x - c2.x) + square(y - c2.y) <= square(r + c2.r);
}
};
void solve() {
ll n;
cin >> n;
vector<circle> all(n);
for (ll i = 0; i < n; i++) {
cin >> all[i].x >> all[i].y >> all[i].r;
all[i].id = i;
}
stable_sort(all.begin(), all.end());
vector<ll> ans(n, -1);
for (ll i = 0; i < n; i++) {
if (ans[all[i].id] == -1) {
ans[all[i].id] = all[i].id;
for (ll j = i + 1; j < n; j++) {
if (all[i].check(all[j]) && ans[all[j].id] == -1) {
ans[all[j].id] = all[i].id;
}
}
}
}
for (auto i : ans) {
cout << i + 1 << ' ';
}
cout << '\n';
}
int main() {
if (IS_FILE) {
freopen("", "r", stdin);
freopen("", "w", stdout);
}
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
ll t = 1;
if (IS_TEST_CASES) {
cin >> t;
}
for (ll i = 0; i < t; i++) {
solve();
}
}
컴파일 시 표준 에러 (stderr) 메시지
circle_selection.cpp: In function 'int main()':
circle_selection.cpp:89:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
89 | freopen("", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~
circle_selection.cpp:90:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
90 | freopen("", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~
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