結果
問題 | No.2955 Pizza Delivery Plan |
ユーザー |
|
提出日時 | 2025-02-07 15:40:06 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 5,808 bytes |
コンパイル時間 | 3,598 ms |
コンパイル使用メモリ | 305,248 KB |
実行使用メモリ | 219,796 KB |
最終ジャッジ日時 | 2025-02-07 15:41:21 |
合計ジャッジ時間 | 51,801 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 14 TLE * 14 |
ソースコード
#include <bits/stdc++.h>using namespace std;#define rep(i, n) for(int i=0; i<n; i++)#define debug 0#define YES cout << "Yes" << endl;#define NO cout << "No" << endl;using ll = long long;using ld = long double;const int mod = 998244353;const int MOD = 1000000007;const double pi = atan2(0, -1);const int inf = 1 << 31 - 1;const ll INF = 1LL << 63 - 1;#include <time.h>#include <chrono>//vectorの中身を空白区切りで出力template<typename T>void printv(vector<T> v) {for (int i = 0; i < v.size(); i++) {cout << v[i];if (i < v.size() - 1) {cout << " ";}}cout << endl;}//vectorの中身を改行区切りで出力template<typename T>void print1(vector<T> v) {for (auto x : v) {cout << x << endl;}}//二次元配列を出力template<typename T>void printvv(vector<vector<T>> vv) {for (vector<T> v : vv) {printv(v);}}//vectorを降順にソートtemplate<typename T>void rsort(vector<T>& v) {sort(v.begin(), v.end());reverse(v.begin(), v.end());}//昇順priority_queueを召喚template<typename T>struct rpriority_queue {priority_queue<T, vector<T>, greater<T>> pq;void push(T x) {pq.push(x);}void pop() {pq.pop();}T top() {return pq.top();}size_t size() {return pq.size();}bool empty() {return pq.empty();}};//mod mod下で逆元を算出する//高速a^n計算(mod ver.)ll power(ll a, ll n) {if (n == 0) {return 1;}else if (n % 2 == 0) {ll x = power(a, n / 2);x *= x;x %= mod;return x;}else {ll x = power(a, n - 1);x *= a;x %= mod;return x;}}//フェルマーの小定理を利用ll modinv(ll p) {return power(p, mod - 2) % mod;}//Mexを求めるstruct Mex {map<int, int> mp;set<int> s;Mex(int Max) {for (int i = 0; i <= Max; i++) {s.insert(i);}}int _mex = 0;void Input(int x) {mp[x]++;s.erase(x);if (_mex == x) {_mex = *begin(s);}}void Remove(int x) {if (mp[x] == 0) {cout << "Mex ERROR!: NO VALUE WILL BE REMOVED" << endl;}mp[x]--;if (mp[x] == 0) {s.insert(x);if (*begin(s) == x) {_mex = x;}}}int mex() {return _mex;}};//条件分岐でYes/Noを出力するタイプのやつvoid YN(bool true_or_false) {cout << (true_or_false ? "Yes" : "No") << endl;}//Union-Findstruct UnionFind {vector<int> par;UnionFind(int N) : par(N) {for (int i = 0; i < N; i++) {par[i] = -1;}}//root(x):xの根を求める関数int root(int x) {if (par[x] == -1) {return x;}else {return par[x] = root(par[x]);}}//isSame(x,y):xとyが同じグループならtrueを返す関数bool isSame(int x, int y) {if (root(x) == root(y)) {return true;}else {return false;}}//Union(x,y):xとyの根をつなげる関数void Union(int x, int y) {int X = root(x);int Y = root(y);if (X == Y) {return;}if (X < Y) {swap(X, Y);}par[X] = Y;}};//最大公約数(ユークリッドの互除法)ll gcd(ll a, ll b) {if (b > a) {swap(a, b);}while (a % b != 0) {ll t = a;a = b;b = t % b;}return b;}//最小公倍数(gcdを定義しておく)ll lcm(ll a, ll b) {ll g = gcd(a, b);ll x = (a / g) * b;return x;}struct SegTree {vector<int> tree;vector<int> lazy;int n = 1;SegTree(int N, int H) {while (n < N) {n *= 2;}vector<int> v(n * 2, H + 1);swap(tree, v);vector<int> u(n * 2, 200005);swap(lazy, u);}void update(int val, int l, int r, int u, int t, int now) {if (l >= t || r <= u) {return;}else if (l <= u && r >= t) {lazy[now] = min(lazy[now], val);}else {tree[now] = min(tree[now], val);update(val, l, r, u, (u + t) / 2, now * 2 + 1);update(val, l, r, (u + t) / 2, t, now * 2 + 2);}}void treeup(int now, int val) {if (tree[now] > val) {tree[now] = val;if (now > 0) {treeup((now - 1) / 2, val);}}}int Min(int l, int r, int u, int t, int now) {if (l >= t || r <= u) {return inf;}else if (l <= u && r >= t) {treeup(now, lazy[now]);return tree[now];}else {treeup(now, lazy[now]);lazy[now * 2 + 1] = min(lazy[now * 2 + 1], lazy[now]);lazy[now * 2 + 2] = min(lazy[now * 2 + 2], lazy[now]);return min(Min(l, r, u, (u + t) / 2, now * 2 + 1), Min(l, r, (u + t) / 2, t, now * 2 + 2));}}int query(int l, int r) {return Min(l, r, 0, n, 0);}};ld dist(vector<ld> x, vector<ld> y) {ld d = sqrt((x[0] - y[0]) * (x[0] - y[0]) + (x[1] - y[1]) * (x[1] - y[1]));return d;}int main() {int N, K;cin >> N >> K;vector<vector<ld>> plot(N+1, vector<ld>(2));plot[0] = { 0,0 };rep(i, N) {cin >> plot[i+1][0] >> plot[i+1][1];}vector<vector<vector<ld>>> record(pow(2, N+1), vector<vector<ld>>(N + 1, vector<ld>(K + 1, INF)));record[0][0][K] = 0;rpriority_queue < tuple<ld, ll,int, int>> pq;pq.push({ 0,0,K,0 });while (!pq.empty()) {auto t = pq.top();pq.pop();ld now_score;bitset<15> b;int now;int k;tie(now_score, b,k, now) = t;if (k > 0) {for (int x = 1; x <= N; x++) {if (!b[x]) {b[x] = 1;ld d = dist(plot[now], plot[x]);if (record[b.to_ullong()][x][k-1]>now_score+d) {record[b.to_ullong()][x][k-1] = now_score + d;pq.push({ now_score + d, b.to_ullong(), k - 1,x });}b[x] = 0;}}}if (now!=0 && record[b.to_ullong()][0][K] > now_score + dist(plot[0], plot[now])) {record[b.to_ullong()][0][K] = now_score + dist(plot[0], plot[now]);pq.push({ now_score + dist(plot[0],plot[now]), b.to_ullong(), K, 0 });}}bitset<15> b = 0;for (int i = 1; i <= N; i++) {b[i] = 1;}cout << setprecision(10) << fixed;cout << record[b.to_ullong()][0][K] << endl;}