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 | 2,409 ms |
| コンパイル使用メモリ | 211,040 KB |
| 実行使用メモリ | 113,920 KB |
| 最終ジャッジ日時 | 2024-11-30 20:19:47 |
| 合計ジャッジ時間 | 5,550 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
5,248 KB |
| testcase_02 | AC | 2 ms
5,248 KB |
| testcase_03 | AC | 212 ms
113,792 KB |
| testcase_04 | AC | 2 ms
5,248 KB |
| testcase_05 | AC | 2 ms
5,248 KB |
| testcase_06 | WA | - |
| testcase_07 | AC | 2 ms
5,248 KB |
| testcase_08 | AC | 2 ms
5,248 KB |
| testcase_09 | AC | 231 ms
113,792 KB |
| testcase_10 | AC | 234 ms
113,792 KB |
| testcase_11 | AC | 229 ms
113,664 KB |
| testcase_12 | AC | 72 ms
45,824 KB |
| testcase_13 | AC | 218 ms
113,792 KB |
| testcase_14 | AC | 212 ms
113,920 KB |
| testcase_15 | AC | 223 ms
113,664 KB |
| testcase_16 | AC | 11 ms
9,088 KB |
| testcase_17 | AC | 28 ms
19,200 KB |
| testcase_18 | AC | 216 ms
113,664 KB |
| testcase_19 | AC | 80 ms
45,696 KB |
| testcase_20 | AC | 2 ms
5,248 KB |
| testcase_21 | AC | 29 ms
19,200 KB |
| testcase_22 | AC | 2 ms
5,248 KB |
| testcase_23 | AC | 5 ms
5,248 KB |
| testcase_24 | AC | 3 ms
5,248 KB |
| testcase_25 | AC | 11 ms
9,088 KB |
| testcase_26 | WA | - |
| testcase_27 | WA | - |
| testcase_28 | AC | 28 ms
19,200 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;
}