結果

問題 No.2602 Real Collider
ユーザー 👑 hos.lyrichos.lyric
提出日時 2024-01-12 21:52:50
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 4,070 bytes
コンパイル時間 1,191 ms
コンパイル使用メモリ 111,292 KB
実行使用メモリ 9,412 KB
最終ジャッジ日時 2024-09-27 22:00:12
合計ジャッジ時間 6,545 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
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ファイルパターン 結果
sample AC * 3
other AC * 72 WA * 6
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ソースコード

diff #
プレゼンテーションモードにする

#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
using namespace std;
using Int = long long;
template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i
    >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
#define COLOR(s) ("\x1b[" s "m")
using Double = long double;
const Double EPS = 1e-10L;
const Double INF = 1e+10L;
const Double PI = acos(-1.0L);
inline int sig(Double r) { return (r < -EPS) ? -1 : (r > +EPS) ? +1 : 0; }
inline Double sq(Double r) { return r * r; }
struct Pt {
Double x, y;
Pt() {}
Pt(Double x_, Double y_) : x(x_), y(y_) {}
Pt operator+(const Pt &a) const { return Pt(x + a.x, y + a.y); }
Pt operator-(const Pt &a) const { return Pt(x - a.x, y - a.y); }
Pt operator*(const Pt &a) const { return Pt(x * a.x - y * a.y, x * a.y + y * a.x); }
Pt operator/(const Pt &a) const { const Double d2 = a.abs2(); return Pt((x * a.x + y * a.y) / d2, (y * a.x - x * a.y) / d2); }
Pt operator+() const { return Pt(+x, +y); }
Pt operator-() const { return Pt(-x, -y); }
Pt operator*(const Double &k) const { return Pt(x * k, y * k); }
Pt operator/(const Double &k) const { return Pt(x / k, y / k); }
friend Pt operator*(const Double &k, const Pt &a) { return Pt(k * a.x, k * a.y); }
Pt &operator+=(const Pt &a) { x += a.x; y += a.y; return *this; }
Pt &operator-=(const Pt &a) { x -= a.x; y -= a.y; return *this; }
Pt &operator*=(const Pt &a) { return *this = *this * a; }
Pt &operator/=(const Pt &a) { return *this = *this / a; }
Pt &operator*=(const Double &k) { x *= k; y *= k; return *this; }
Pt &operator/=(const Double &k) { x /= k; y /= k; return *this; }
Double abs() const { return sqrt(x * x + y * y); }
Double abs2() const { return x * x + y * y; }
Double arg() const { return atan2(y, x); }
Double dot(const Pt &a) const { return x * a.x + y * a.y; }
Double det(const Pt &a) const { return x * a.y - y * a.x; }
friend ostream &operator<<(ostream &os, const Pt &a) { os << "(" << a.x << ", " << a.y << ")"; return os; }
};
inline Double tri(const Pt &a, const Pt &b, const Pt &c) { return (b - a).det(c - a); }
Pt circumcenter(const Pt &a, const Pt &b, const Pt &c) {
const Pt bc = c - b, ca = a - c, ab = b - a;
return (b + c - bc * Pt(0, 1) * ca.dot(ab) / ca.det(ab)) / 2;
}
int Q;
vector<Pt> P;
int main() {
for (; ~scanf("%d", &Q); ) {
P.resize(3 + Q);
for (int i = 0; i < 3 + Q; ++i) {
int x, y;
scanf("%d%d", &x, &y);
P[i] = Pt(x, y);
}
if ((P[1] - P[0]).det(P[2] - P[0]) < 0) {
swap(P[1], P[2]);
}
Pt cen;
Double rad;
for (int i = 0; i < 3; ++i) {
const Pt &p0 = P[i];
const Pt &p1 = P[(i + 1) % 3];
const Pt &p2 = P[(i + 2) % 3];
if (sig((p1 - p0).dot(p2 - p0)) < 0) {
cen = (p1 + p2) / 2;
rad = (p1 - cen).abs();
goto don;
}
}
cen = circumcenter(P[0], P[1], P[2]);
rad = (P[0] - cen).abs();
don:{}
for (int i = 3; i < 3 + Q; ++i) {
const Double d = (P[i] - cen).abs();
puts((sig(d - rad) <= 0) ? "Yes" : "No");
}
}
return 0;
}
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