結果
| 問題 |
No.2628 Shrinkage
|
| コンテスト | |
| ユーザー |
SnowBeenDiding
|
| 提出日時 | 2024-02-16 21:35:15 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 16,338 bytes |
| コンパイル時間 | 5,586 ms |
| コンパイル使用メモリ | 332,524 KB |
| 実行使用メモリ | 6,824 KB |
| 最終ジャッジ日時 | 2024-09-28 19:49:11 |
| 合計ジャッジ時間 | 5,992 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 1 WA * 27 |
ソースコード
#include <atcoder/all>
using namespace atcoder;
using mint = modint998244353;
const long long MOD = 998244353;
// using mint = modint1000000007;
// const long long MOD = 1000000007;
// using mint = modint;//mint::set_mod(MOD);
#include <bits/stdc++.h>
#define rep(i, a, b) for (ll i = (ll)(a); i < (ll)(b); i++)
#define repeq(i, a, b) for (ll i = (ll)(a); i <= (ll)(b); i++)
#define repreq(i, a, b) for (ll i = (ll)(a); i >= (ll)(b); i--)
#define endl '\n' // fflush(stdout);
#define cYes cout << "Yes" << endl
#define cNo cout << "No" << endl
#define sortr(v) sort(v, greater<>())
#define pb push_back
#define pob pop_back
#define mp make_pair
#define mt make_tuple
#define FI first
#define SE second
#define ALL(v) (v).begin(), (v).end()
#define INFLL 3000000000000000100LL
#define INF 1000000100
#define PI acos(-1.0L)
#define TAU (PI * 2.0L)
using namespace std;
typedef long long ll;
typedef pair<ll, ll> Pll;
typedef tuple<ll, ll, ll> Tlll;
typedef vector<int> Vi;
typedef vector<Vi> VVi;
typedef vector<ll> Vl;
typedef vector<Vl> VVl;
typedef vector<VVl> VVVl;
typedef vector<Tlll> VTlll;
typedef vector<mint> Vm;
typedef vector<Vm> VVm;
typedef vector<string> Vs;
typedef vector<double> Vd;
typedef vector<char> Vc;
typedef vector<bool> Vb;
typedef vector<Pll> VPll;
typedef priority_queue<ll> PQl;
typedef priority_queue<ll, vector<ll>, greater<ll>> PQlr;
/* inout */
ostream &operator<<(ostream &os, mint const &m) {
os << m.val();
return os;
}
istream &operator>>(istream &is, mint &m) {
long long n;
is >> n, m = n;
return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &v) {
int n = v.size();
rep(i, 0, n) { os << v[i] << " \n"[i == n - 1]; }
return os;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<vector<T>> &v) {
int n = v.size();
rep(i, 0, n) os << v[i];
return os;
}
template <typename T, typename S>
ostream &operator<<(ostream &os, pair<T, S> const &p) {
os << p.first << ' ' << p.second;
return os;
}
template <typename T, typename S>
ostream &operator<<(ostream &os, const map<T, S> &ma) {
for (auto &[key, val] : ma) {
os << key << ':' << val << '\n';
}
return os;
}
template <typename T>
ostream &operator<<(ostream &os, const set<T> &st) {
auto itr = st.begin();
for (int i = 0; i < (int)st.size(); i++) {
os << *itr << (i + 1 != (int)st.size() ? ' ' : '\n');
itr++;
}
return os;
}
template <typename T>
ostream &operator<<(ostream &os, multiset<T> &st) {
auto itr = st.begin();
for (int i = 0; i < (int)st.size(); i++) {
os << *itr << (i + 1 != (int)st.size() ? ' ' : '\n');
itr++;
}
return os;
}
template <typename T>
ostream &operator<<(ostream &os, queue<T> q) {
while (q.size()) {
os << q.front();
q.pop();
os << " \n"[q.empty()];
}
return os;
}
template <typename T>
ostream &operator<<(ostream &os, stack<T> st) {
vector<T> v;
while (st.size()) {
v.push_back(st.top());
st.pop();
}
reverse(ALL(v));
os << v;
return os;
}
template <class T, class Container, class Compare>
ostream &operator<<(ostream &os, priority_queue<T, Container, Compare> pq) {
vector<T> v;
while (pq.size()) {
v.push_back(pq.top());
pq.pop();
}
os << v;
return os;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &v) {
for (T &in : v) is >> in;
return is;
}
template <typename T1, typename T2>
istream &operator>>(istream &is, pair<T1, T2> &p) {
is >> p.first >> p.second;
return is;
}
/* useful */
template <typename T>
int SMALLER(vector<T> &a, T x) {
return lower_bound(a.begin(), a.end(), x) - a.begin();
}
template <typename T>
int orSMALLER(vector<T> &a, T x) {
return upper_bound(a.begin(), a.end(), x) - a.begin();
}
template <typename T>
int BIGGER(vector<T> &a, T x) {
return a.size() - orSMALLER(a, x);
}
template <typename T>
int orBIGGER(vector<T> &a, T x) {
return a.size() - SMALLER(a, x);
}
template <typename T>
int COUNT(vector<T> &a, T x) {
return upper_bound(ALL(a), x) - lower_bound(ALL(a), x);
}
template <typename T, typename S>
bool chmax(T &a, S b) {
if (a < b) {
a = b;
return 1;
}
return 0;
}
template <typename T, typename S>
bool chmin(T &a, S b) {
if (a > b) {
a = b;
return 1;
}
return 0;
}
template <typename T>
void press(T &v) {
v.erase(unique(ALL(v)), v.end());
}
template <typename T>
vector<int> zip(vector<T> a) {
int n = a.size();
pair<T, int> p[n];
vector<int> v(n);
for (int i = 0; i < n; i++) p[i] = make_pair(a[i], i);
sort(p, p + n);
int w = 0;
for (int i = 0; i < n; i++) {
if (i && p[i].first != p[i - 1].first) w++;
v[p[i].second] = w;
}
return v;
}
template <typename T>
vector<T> vis(vector<T> &v) {
vector<T> S(v.size() + 1);
rep(i, 1, S.size()) S[i] += v[i - 1] + S[i - 1];
return S;
}
template <typename T>
T ceil_div(T a, T b) {
if (b < 0) a = -a, b = -b;
return (a >= 0 ? (a + b - 1) / b : a / b);
}
template <typename T>
T floor_div(T a, T b) {
if (b < 0) a = -a, b = -b;
return (a >= 0 ? a / b : (a - b + 1) / b);
}
ll dtoll(double d, int g) { return round(d * pow(10, g)); }
const double EPS = 1e-10;
void init() {
cin.tie(0);
cout.tie(0);
ios::sync_with_stdio(0);
cout.precision(12);
cout << fixed;
}
// do {} while (next_permutation(ALL(vec)));
/********************************** START **********************************/
void sol();
int main() {
init();
int q = 1;
cin >> q;
while (q--) sol();
return 0;
}
/********************************** SOLVE **********************************/
// #define EPS (1e-10)
// #define PI (acos(-1))
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using vll = vector<ll>;
using vvll = vector<vll>;
using vvvll = vector<vvll>;
using vld = vector<ld>;
using vvld = vector<vld>;
using vvvld = vector<vvld>;
using vs = vector<string>;
using pll = pair<ll, ll>;
using vp = vector<pll>;
// point
using P = complex<ld>;
// two points: line
using L = array<P, 2>;
// circle
struct C {
P c;
ld r;
C() : c({0, 0}), r(0) {}
C(const P &c_, ld r_) : c(c_), r(r_) {}
C(ld x_, ld y_, ld r_) : c({x_, y_}), r(r_) {}
};
using VP = vector<P>;
using VC = vector<C>;
void Pin(P &a, ld b, ld c) {
a.real(b);
a.imag(c);
}
void Lin(L &a, P b, P c) {
a[0] = b;
a[1] = c;
}
ostream &operator<<(ostream &os, P const &A) {
os << A.real() << ' ' << A.imag();
return os;
}
namespace std {
bool operator<(const P &a, const P &b) { return arg(a) < arg(b); }
} // namespace std
ld cross(const P &a, const P &b) { return imag(conj(a) * b); }
ld dot(const P &a, const P &b) { return real(conj(a) * b); }
// 線分ABをs:tに内分する点
P bun(P A, P B, double s, double t) {
complex<ld> S(t / (s + t)), T(s / (s + t));
return A * S + B * T;
}
// a->b->cの進行方向
int ccw(P a, P b, P c) {
b -= a;
c -= a;
if (cross(b, c) > 0) return 1; // counterclockwise a--b//c
if (cross(b, c) < 0) return -1; // clockwise a--b\\c
if (dot(b, c) < 0) return 2; // c--a--b on line
if (norm(b) < norm(c)) return -2; // a--b--c on line
return 0; // a--c--b on line
}
// 直線-直線交差判定
bool intersectLL(const L &l, const L &m) {
return abs(cross(l[1] - l[0], m[1] - m[0])) > EPS // non-parallel
|| abs(cross(l[1] - l[0], m[1] - l[0])) < EPS; // same line
}
// 直線-線分交差判定
bool intersectLS(const L &l, const L &s) {
return cross(l[1] - l[0], s[0] - l[0]) * // s[0] is left of l
cross(l[1] - l[0], s[1] - l[0]) <
EPS; // s[1] is right of l
}
// 線分-線分交差判定
bool intersectSS(const L &s, const L &t) {
return ccw(s[0], s[1], t[0]) * ccw(s[0], s[1], t[1]) <= 0 &&
ccw(t[0], t[1], s[0]) * ccw(t[0], t[1], s[1]) <= 0;
}
// 点∈直線の判定
bool intersectLP(const L &l, const P &p) {
return abs(cross(l[1] - p, l[0] - p)) < EPS;
}
// 点∈線分の判定
bool intersectSP(const L &s, const P &p) {
// triangle inequality
return abs(s[0] - p) + abs(s[1] - p) - abs(s[1] - s[0]) < EPS;
}
// 点の直線への射影
P projection(const L &l, const P &p) {
ld t = dot(p - l[0], l[1] - l[0]) / norm(l[1] - l[0]);
return l[0] + t * (l[1] - l[0]);
}
// 点の直線に対する鏡映
P reflection(const L &l, const P &p) {
return p + (projection(l, p) - p) * 2.L;
}
// 点-直線の距離
ld distanceLP(const L &l, const P &p) { return abs(p - projection(l, p)); }
// 直線-直線の距離 非平行か同一なら0
ld distanceLL(const L &l, const L &m) {
return intersectLL(l, m) ? 0 : distanceLP(l, m[0]);
}
// 直線-線分の距離
ld distanceLS(const L &l, const L &s) {
return intersectLS(l, s) ? 0
: min(distanceLP(l, s[0]), distanceLP(l, s[1]));
}
// 点-線分の距離
ld distanceSP(const L &s, const P &p) {
const P r = projection(s, p);
if (intersectSP(s, r)) return abs(r - p);
return min(abs(s[0] - p), abs(s[1] - p));
}
// 線分-線分の距離
ld distanceSS(const L &s, const L &t) {
if (intersectSS(s, t)) return 0;
return min({distanceSP(s, t[0]), distanceSP(s, t[1]), distanceSP(t, s[0]),
distanceSP(t, s[1])});
}
// 2直線の交点 平行な場合は例外
P crosspoint(const L &l, const L &m) {
ld A = cross(l[1] - l[0], m[1] - m[0]);
ld B = cross(l[1] - l[0], l[1] - m[0]);
return m[0] + B / A * (m[1] - m[0]);
}
// 2円の交点 一致する場合は例外
VP crosspoint(C a, C b) {
ld dist = abs(a.c - b.c);
ld rdist = abs(a.r - b.r);
assert(dist >= EPS || rdist >= EPS);
// 外接する
if (abs(dist - (a.r + b.r)) < EPS) {
return {(b.r * a.c + a.r * b.c) / (a.r + b.r)};
}
// 内接する
if (abs(dist - rdist) < EPS) {
return {(-b.r * a.c + a.r * b.c) / (a.r - b.r)};
}
// 離れている、内包する
if (dist > a.r + b.r || dist < rdist) {
return {};
}
// 交わる 中心を0と1に規格化
// 最後に足す
P movp = a.c;
a.c = {0.L, 0.L};
b.c -= movp;
// 最後に掛ける
P movm = b.c;
b.c = {1.L, 0.L};
a.r /= abs(movm);
b.r /= abs(movm);
ld x = (a.r * a.r - b.r * b.r + 1) / 2;
ld y = sqrt(a.r * a.r - x * x);
P cr1 = {x, y};
P cr2 = {x, -y};
cr1 = cr1 * movm + movp;
cr2 = cr2 * movm + movp;
// 元に戻す
return {cr1, cr2};
}
// 円盤の最大の重なりの個数 O(n^3)
ll maxOverlap(const VC &vc) {
ll n = vc.size();
if (!n) return 0;
ll ret = 1;
VP pts;
for (auto &&e : vc) {
pts.emplace_back(e.c);
}
for (int i = 0; i < n; i++) {
for (int j = 0; j < i; j++) {
VP cp = crosspoint(vc[i], vc[j]);
pts.insert(pts.end(), cp.begin(), cp.end());
}
}
for (auto &&e : pts) {
ll tmp = 0;
for (auto &&ee : vc) {
tmp += (abs(e - ee.c) < ee.r + EPS);
}
if (ret < tmp) ret = tmp;
}
return ret;
}
// 多角形の面積
ld Area(const VP &p) {
ll ret = 0;
for (int i = 1; i + 1 < (int)p.size(); i++) {
ret += round(cross(p[i] - p[0], p[i + 1] - p[0]));
}
return (ld)abs(ret) / 2;
}
// 凸性判定 点列は時計/反時計
bool isConvex(const VP &p) {
int n = p.size();
assert(n >= 3);
int cnt[5] = {};
for (int i = 0; i < n; i++) {
cnt[ccw(p[i], p[(i + 1) % n], p[(i + 2) % n]) + 2]++;
}
return cnt[1] == 0 || cnt[3] == 0;
}
// 凸包 時計回り
VP ConvexHull(VP p) {
sort(p.begin(), p.end(), [](const auto &l, const auto &r) {
return real(l) != real(r) ? real(l) < real(r) : imag(l) < imag(r);
});
int n = p.size();
if (n < 3) return p;
VP upper, lower;
upper.reserve(n);
lower.reserve(n);
int sz = 0;
for (int i = 0; i < n; i++) {
upper.emplace_back(p[i]);
sz++;
while (sz >= 3 &&
ccw(upper[sz - 3], upper[sz - 2], upper[sz - 1]) == 1) {
upper.erase(upper.end() - 2);
sz--;
}
}
sz = 0;
for (int i = n - 1; i >= 0; i--) {
lower.emplace_back(p[i]);
sz++;
while (sz >= 3 &&
ccw(lower[sz - 3], lower[sz - 2], lower[sz - 1]) == 1) {
lower.erase(lower.end() - 2);
sz--;
}
}
upper.pop_back();
lower.pop_back();
copy(lower.begin(), lower.end(), back_inserter(upper));
return upper;
}
// 多角形が点pを含むか 点列は時計/反時計 内2, 辺上1, 外0 O(V)
int PointInPolygon(const VP &g, const P &p) {
int n = g.size();
ld r = 0;
assert(n >= 2);
for (int i = 0; i < n; i++) {
if (ccw(g[i], g[(i + 1) % n], p) == 0) return 1;
r += arg((g[(i + 1) % n] - p) / (g[i] - p));
}
return abs(r) > PI ? 2 : 0;
}
// キャリパー法(Rotating Calipers法)
// 凸多角形を回転しながら走査し、最遠点対を求める
ld Diameter(const VP &p) {
auto qs = ConvexHull(p);
reverse(qs.begin(), qs.end());
int n = qs.size();
if (n == 2) return abs(qs[0] - qs[1]);
int i = 0, j = 0;
auto cmp = [](const P &a, const P &b) {
return a.real() != b.real() ? a.real() < b.real() : a.imag() < b.imag();
};
for (int k = 0; k < n; k++) {
if (cmp(qs[k], qs[i])) i = k;
if (cmp(qs[j], qs[k])) j = k;
}
ld ret = 0;
int si = i, sj = j;
while (i != sj || j != si) {
ret = max(ret, abs(qs[i] - qs[j]));
if (cross(qs[(i + 1) % n] - qs[i], qs[(j + 1) % n] - qs[j]) < 0) {
i = (i + 1) % n;
} else {
j = (j + 1) % n;
}
}
return ret;
}
// 凸多角形の切断
// 凸多角形pを直線lで切断したときの面積(切断の向きの左側)
// https://onlinejudge.u-aizu.ac.jp/services/room.html#GEOMETRY_20231005/problems/M
ld ConvexCut(const VP &p, const L &l) {
int n = p.size();
VP q;
for (int i = 0; i < n; i++) {
P a = p[i], b = p[(i + 1) % n];
if (ccw(l[0], l[1], a) != -1) q.emplace_back(a);
if (ccw(l[0], l[1], a) * ccw(l[0], l[1], b) < 0) {
if (abs(cross(l[1] - l[0], b - a)) < EPS) {
q.emplace_back(a);
} else {
q.emplace_back(crosspoint(L{a, b}, l));
}
}
}
ld ret = 0;
for (int i = 0; i < (int)q.size(); i++) {
ret += cross(q[i], q[(i + 1) % q.size()]);
}
return abs(ret) / 2;
}
// 2円の共通接線の本数(0, 1, 2, 3, 4)
// https://onlinejudge.u-aizu.ac.jp/services/room.html#GEOMETRY_20231005/problems/N
ll tangentlines(C a, C b) {
ld dist = abs(a.c - b.c);
ld rdist = abs(a.r - b.r);
if (dist < rdist) return 0;
if (abs(dist - rdist) < EPS) return 1;
if (dist < a.r + b.r) return 2;
if (abs(dist - a.r - b.r) < EPS) return 3;
return 4;
}
// 三角形の内接円
C InCircle(P a, P b, P c) {
ld a1 = abs(b - c);
ld a2 = abs(c - a);
ld a3 = abs(a - b);
ld s = (a1 + a2 + a3) / 2;
ld r = sqrtl(s * (s - a1) * (s - a2) * (s - a3)) / s;
P p = (a1 * a + a2 * b + a3 * c) / (a1 + a2 + a3);
return C(p, r);
}
void sol() {
P p0, p1, q0, q1;
rep(i, 0, 4) {
ld x, y;
cin >> x >> y;
if (i == 0) Pin(p0, x, y);
if (i == 1) Pin(p1, x, y);
if (i == 2) Pin(q0, x, y);
if (i == 3) Pin(q1, x, y);
}
L l0 = {p0, q0}, l1 = {p1, q1};
if (!intersectLL(l0, l1)) {
cout << "No" << endl;
return;
}
P c = crosspoint(l0, l1);
if (ccw(p0, c, p1) != 1) {
cout << "No" << endl;
return;
}
if (ccw(q0, c, q1) != 1) {
cout << "No" << endl;
return;
}
double d0 = abs(c - q0) / abs(c - p0);
double d1 = abs(c - q1) / abs(c - p1);
cerr << d0 << " " << d1 << endl;
if (abs(d0 - d1) < EPS) {
cout << "Yes" << endl;
} else {
cout << "No" << endl;
}
}
SnowBeenDiding