結果
問題 | No.2602 Real Collider |
ユーザー |
👑 |
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 |
ソースコード
#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;}