結果
問題 | No.2602 Real Collider |
ユーザー | 👑 hos.lyric |
提出日時 | 2024-01-12 22:11:03 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 52 ms / 2,000 ms |
コード長 | 4,660 bytes |
コンパイル時間 | 1,241 ms |
コンパイル使用メモリ | 114,928 KB |
実行使用メモリ | 12,672 KB |
最終ジャッジ日時 | 2024-09-27 22:37:37 |
合計ジャッジ時間 | 6,561 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 78 |
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") inline int sig(Int r) { return (r < 0) ? -1 : (r > 0) ? +1 : 0; } inline Int sq(Int r) { return r * r; } struct Pt { Int x, y; Pt() : x(0), y(0) {} Pt(Int x_, Int 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 { return Pt(+x, +y); } Pt operator-() const { return Pt(-x, -y); } Pt operator*(const Int &k) const { return Pt(x * k, y * k); } Pt operator/(const Int &k) const { return Pt(x / k, y / k); } friend Pt operator*(const Int &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 Int &k) { x *= k; y *= k; return *this; } Int abs2() const { return x * x + y * y; } Int dot(const Pt &a) const { return x * a.x + y * a.y; } Int det(const Pt &a) const { return x * a.y - y * a.x; } bool operator==(const Pt &a) const { return (x == a.x && y == a.y); } bool operator<(const Pt &a) const { return ((x != a.x) ? (x < a.x) : (y < a.y)); } friend ostream &operator<<(ostream &os, const Pt &a) { os << "(" << a.x << ", " << a.y << ")"; return os; } }; inline Int tri(const Pt &a, const Pt &b, const Pt &c) { return (b - a).det(c - a); } // Watch out for the case a == b. int iSP(const Pt &a, const Pt &b, const Pt &c) { int s = sig((b - a).det(c - a)); if (s) return s; if (sig((b - a).dot(c - a)) < 0) return -2; // c-a-b if (sig((a - b).dot(c - b)) < 0) return +2; // a-b-c return 0; } int Q; vector<Pt> P; Int mat[200'010][4]; 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(2 * x, 2 * y); } cerr<<"P = "<<P<<endl; if ((P[1] - P[0]).det(P[2] - P[0]) < 0) { swap(P[1], P[2]); } 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 (iSP(p1, p2, p0) == 0) { const Pt cen = (p1 + p2) / 2; P[i] = cen + (p2 - cen) * Pt(0, 1); goto don; } } 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) { const Pt cen = (p1 + p2) / 2; P[i] = cen + (p2 - cen) * Pt(0, 1); goto don; } } don:{} cerr<<"P = "<<P<<endl; for (int i = 0; i < 3 + Q; ++i) { mat[i][0] = P[i].abs2(); mat[i][1] = P[i].x; mat[i][2] = P[i].y; mat[i][3] = 1; } Int coef[4] = {}; { int perm[4] = {0, 1, 2, 3}; do { Int prod = 1; for (int i = 0; i < 4; ++i) for (int j = i + 1; j < 4; ++j) if (perm[i] > perm[j]) prod = -prod; for (int i = 1; i < 4; ++i) prod *= mat[i - 1][perm[i]]; coef[perm[0]] += prod; } while (next_permutation(perm, perm + 4)); } for (int i = 3; i < 3 + Q; ++i) { Int ans = 0; for (int j = 0; j < 4; ++j) ans += coef[j] * mat[i][j]; // cerr<<"ans = "<<ans<<endl; puts((ans <= 0) ? "Yes" : "No"); } } return 0; }