結果
問題 | No.245 貫け! |
ユーザー |
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提出日時 | 2020-08-20 18:14:11 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 27 ms / 5,000 ms |
コード長 | 2,829 bytes |
コンパイル時間 | 1,392 ms |
コンパイル使用メモリ | 118,320 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-10-13 15:49:15 |
合計ジャッジ時間 | 2,533 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 16 |
コンパイルメッセージ
main.cpp:29:20: warning: integer overflow in expression of type 'long long int' results in '-5973893300308410287' [-Woverflow] 29 | const ll INF = mod * mod; | ~~~~^~~~~
ソースコード
#include<iostream>#include<string>#include<cstdio>#include<vector>#include<cmath>#include<algorithm>#include<functional>#include<iomanip>#include<queue>#include<ciso646>#include<random>#include<map>#include<set>#include<bitset>#include<stack>#include<unordered_map>#include<utility>#include<cassert>#include<complex>#include<numeric>using namespace std;//#define int long longtypedef long long ll;typedef unsigned long long ul;typedef unsigned int ui;constexpr ll mod = 1000000000000000009;const ll INF = mod * mod;typedef pair<int, int>P;#define stop char nyaa;cin>>nyaa;#define rep(i,n) for(int i=0;i<n;i++)#define per(i,n) for(int i=n-1;i>=0;i--)#define Rep(i,sta,n) for(int i=sta;i<n;i++)#define rep1(i,n) for(int i=1;i<=n;i++)#define per1(i,n) for(int i=n;i>=1;i--)#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)#define all(v) (v).begin(),(v).end()typedef pair<ll, ll> LP;typedef double ld;typedef pair<ld, ld> LDP;const ld eps = 1e-12;const ld pi = acos(-1.0);bool isis_ls(P p1, P p2, P q1, P q2) {if (p1 > p2)swap(p1, p2);if (q1 > q2)swap(q1, q2);if (p1.first == p2.first) {if (q1.first <= p1.first && p1.first <= q2.first) {if (q1.first == q2.first) {int ly = max(p1.second, q1.second);int ry = min(p2.second, q2.second);return ly <= ry;}else {int y = (q2.second - q1.second) * (p1.first - q1.first) + (q2.first - q1.first) * q1.second;return (q2.first - q1.first) * p1.second <= y && y <= (q2.first - q1.first) * p2.second;}}else return false;}else {int y = (p2.second - p1.second) * (q1.first - p1.first) + (p2.first-p1.first)*p1.second;bool b1[2] = {}, b2[2] = {};if (y >= q1.second * (p2.first - p1.first))b1[0] = true;if (y <= q1.second * (p2.first - p1.first))b1[1] = true;y= (p2.second - p1.second) * (q2.first - p1.first) + (p2.first - p1.first) * p1.second;if (y >= q2.second * (p2.first - p1.first))b2[0] = true;if (y <= q2.second * (p2.first - p1.first))b2[1] = true;if (b1[0] && b2[1])return true;else if (b1[1] && b2[0])return true;else return false;}}void solve() {int n; cin >> n;vector<vector<int>> x(n), y(n);rep(i, n) {x[i].resize(2); y[i].resize(2);rep(j, 2)cin >> x[i][j] >> y[i][j];}if (n == 1) {cout << 1 << "\n"; return;}int ans = 0;rep(i, n)Rep(j, i + 1, n) {rep(k, 2)rep(l, 2) {int x1 = x[i][k], y1 = y[i][k], x2 = x[j][l], y2 = y[j][l];int cnt = 0;rep(t, n) {if (isis_ls({ x1,y1 }, { x2,y2 }, { x[t][0],y[t][0] }, { x[t][1],y[t][1] }))cnt++;}ans = max(ans, cnt);}}cout << ans << "\n";}signed main() {ios::sync_with_stdio(false);cin.tie(0);cout << fixed << setprecision(10);//init_f();//expr();//int t; cin >> t; rep(i, t)//while (cin >> n >> m>>s1>>s2>>t, n)solve();return 0;}