結果
問題 | No.2180 Comprehensive Line Segments |
ユーザー | 👑 rin204 |
提出日時 | 2023-01-06 23:27:05 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 8,066 bytes |
コンパイル時間 | 2,841 ms |
コンパイル使用メモリ | 211,196 KB |
実行使用メモリ | 113,920 KB |
最終ジャッジ日時 | 2024-05-07 23:20:28 |
合計ジャッジ時間 | 5,709 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 162 ms
113,792 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | WA | - |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 181 ms
113,664 KB |
testcase_10 | AC | 181 ms
113,876 KB |
testcase_11 | AC | 175 ms
113,792 KB |
testcase_12 | AC | 51 ms
45,824 KB |
testcase_13 | AC | 167 ms
113,884 KB |
testcase_14 | AC | 155 ms
113,664 KB |
testcase_15 | AC | 170 ms
113,636 KB |
testcase_16 | AC | 9 ms
9,088 KB |
testcase_17 | AC | 22 ms
19,200 KB |
testcase_18 | AC | 164 ms
113,792 KB |
testcase_19 | AC | 61 ms
45,824 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 22 ms
19,200 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 5 ms
5,376 KB |
testcase_24 | AC | 3 ms
5,376 KB |
testcase_25 | AC | 9 ms
8,960 KB |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | AC | 22 ms
19,072 KB |
ソースコード
#include<bits/stdc++.h> using namespace std; using ll = long long; using ull = unsigned long long; template <class T> using pq = priority_queue<T>; template <class T> using qp = priority_queue<T, vector<T>, greater<T>>; #define vec(T, A, ...) vector<T> A(__VA_ARGS__); #define vvec(T, A, h, ...) vector<vector<T>> A(h, vector<T>(__VA_ARGS__)); #define vvvec(T, A, h1, h2, ...) vector<vector<vector<T>>> A(h1, vector<vector<T>>(h2, vector<T>(__VA_ARGS__))); #define endl "\n" #define spa ' ' #define len(A) A.size() #define all(A) begin(A), end(A) #define fori1(a) for(ll _ = 0; _ < (a); _++) #define fori2(i, a) for(ll i = 0; i < (a); i++) #define fori3(i, a, b) for(ll i = (a); i < (b); i++) #define fori4(i, a, b, c) for(ll i = (a); ((c) > 0 || i > (b)) && ((c) < 0 || i < (b)); i += (c)) #define overload4(a, b, c, d, e, ...) e #define fori(...) overload4(__VA_ARGS__, fori4, fori3, fori2, fori1)(__VA_ARGS__) #define INT(...) int __VA_ARGS__; inp(__VA_ARGS__); #define LL(...) ll __VA_ARGS__; inp(__VA_ARGS__); #define STRING(...) string __VA_ARGS__; inp(__VA_ARGS__); #define CHAR(...) char __VA_ARGS__; inp(__VA_ARGS__); #define VEC(T, A, n) vector<T> A(n); inp(A); #define VVEC(T, A, n, m) vector<vector<T>> A(n, vector<T>(m)); inp(A); const ll MOD1 = 1000000007; const ll MOD9 = 998244353; template<class T> auto min(const T& a){ return *min_element(all(a)); } template<class T> auto max(const T& a){ return *max_element(all(a)); } template <class T, class S> inline bool chmax(T &a, const S &b) { return (a < b ? a = b, 1 : 0); } template <class T, class S> inline bool chmin(T &a, const S &b) { return (a > b ? a = b, 1 : 0); } void print(){cout << endl;} template <class Head, class... Tail> void print(Head &&head, Tail &&... tail) { cout << head; if (sizeof...(Tail)) cout << spa; print(forward<Tail>(tail)...); } template<typename T> void print(vector<T> &A){ int n = A.size(); for(int i = 0; i < n; i++){ cout << A[i]; if(i == n - 1) cout << endl; else cout << spa; } } template<typename T> void print(vector<vector<T>> &A){ for(auto &row: A) print(row); } template<typename T, typename S> void print(pair<T, S> &A){ cout << A.first << spa << A.second << endl; } template<typename T, typename S> void prisep(vector<T> &A, S sep){ int n = A.size(); for(int i = 0; i < n; i++){ cout << A[i]; if(i == n - 1) cout << endl; else cout << sep; } } template<typename T, typename S> void priend(T A, S end){ cout << A << end; } template<typename T> void priend(T A){ priend(A, spa); } template<class... T> void inp(T&... a){ (cin >> ... >> a); } template<typename T> void inp(vector<T> &A){ for(auto &a:A) cin >> a; } template<typename T> void inp(vector<vector<T>> &A){ for(auto &row:A) inp(row); } template<typename T, typename S> void inp(pair<T, S> &A){ inp(A.first, A.second); } template<typename T, typename S> void inp(vector<pair<T, S>> &A){ for(auto &row: A) inp(row.first, row.second); } template<typename T> T sum(vector<T> &A){ T tot = 0; for(auto a:A) tot += a; return tot; } void solve(){ INT(n); vector<pair<ll, ll>> point(n); if(n <= 2){ print(1); return; } inp(point); const ll inf = 1LL << 60; auto f=[&](int bit, int i, int j, int k, int t){ return (((bit * n + i) * n + j) * n + k) * 2 + t; }; vec(ll, dp, (1 << n) * n * n * n * 2, inf); auto dot=[&](pair<ll, ll> d1, pair<ll, ll> d2){ return d1.first * d2.first + d1.second * d2.second; }; auto cross=[&](pair<ll, ll> d1, pair<ll, ll> d2){ return d1.first * d2.second - d1.second * d2.first; }; auto line3=[&](int i, int j, int k){ if(i == j) return true; ll dx1 = point[j].first - point[i].first; ll dy1 = point[j].second - point[i].second; ll dx2 = point[k].first - point[i].first; ll dy2 = point[k].second - point[i].second; pair<ll, ll> d1 = {dx1, dy1}; pair<ll, ll> d2 = {dx2, dy2}; if(cross(d1, d2) != 0) return false; if(dot(d1, d2) < 0) return false; return dx1 * dx1 + dy1 * dy1 < dx2 * dx2 + dy2 * dy2; }; fori(bit, 1, 1 << n){ vec(int, ind, 0); int pc = 0; fori(i, n){ if((bit >> i) & 1){ pc++; ind.push_back(i); } } if(pc == 1){ int i = ind[0]; dp[f(bit, i, i, i, 0)] = 1; dp[f(bit, i, i, i, 1)] = 1; continue; } else if(pc == 2){ int i = ind[0]; int j = ind[1]; dp[f(bit, i, i, j, 0)] = 1; dp[f(bit, i, i, j, 1)] = 1; continue; } for(auto i:ind) for(auto j:ind){ for(auto k:ind){ if(i == k || j == k) continue; for(auto l:ind){ if(i == l || j == l || k == l) continue; if(line3(i, j, k)){ if(line3(j, k, l)){ chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 0)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 1)]); chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 1)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 0)]); } else{ chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 0)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 1)] + 1); chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 1)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 0)] + 1); } } else if(line3(j, k, l)){ chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 0)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 1)]); chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 1)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 0)]); } else{ ll ji1 = point[j].first - point[i].first; ll ji2 = point[j].second - point[i].second; ll lk1 = point[l].first - point[k].first; ll lk2 = point[l].second - point[k].second; ll kj1 = point[k].first - point[j].first; ll kj2 = point[k].second - point[j].second; ll add = 0; if(cross({ji1, ji2}, {lk1, lk2}) == 0) add = 1; ll kji = cross({ji1, ji2}, {kj1, kj2}); ll lkj = cross({kj1, kj2}, {lk1, lk2}); if(kji * lkj <= 0) add = 1; ll lqk = cross({ji1, ji2}, {lk1 - ji1, lk2 - ji2}); if(kji * lqk <= 0) add = 1; chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 0)] + 1); chmin(dp[f(bit, j, k, l, 0)], dp[f((bit) ^ (1 << l), i, j, k, 1)] + 1); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 0)] + add); chmin(dp[f(bit, j, k, l, 1)], dp[f((bit) ^ (1 << l), i, j, k, 1)] + 1); } } } } } ll ans = inf; fori(i, n) fori(j, n) fori(k, n){ chmin(ans, dp[f((1 << n) - 1, i, j, k, 0)]); chmin(ans, dp[f((1 << n) - 1, i, j, k, 1)]); } print(ans); } int main(){ cin.tie(0)->sync_with_stdio(0); int t; t = 1; // cin >> t; while(t--) solve(); return 0; }