結果
問題 | No.2955 Pizza Delivery Plan |
ユーザー |
|
提出日時 | 2024-11-08 23:11:37 |
言語 | C++17(clang) (17.0.6 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 344 ms / 2,000 ms |
コード長 | 3,864 bytes |
コンパイル時間 | 2,657 ms |
コンパイル使用メモリ | 154,260 KB |
実行使用メモリ | 28,784 KB |
最終ジャッジ日時 | 2024-11-08 23:11:49 |
合計ジャッジ時間 | 8,053 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 28 |
ソースコード
#include <iostream> // cout, endl, cin#include <string> // string, to_string, stoi#include <vector> // vector#include <algorithm> // min, max, swap, sort, reverse, lower_bound, upper_bound#include <utility> // pair, make_pair#include <tuple> // tuple, make_tuple#include <cstdint> // int64_t, int*_t#include <cstdio> // printf#include <map> // map#include <queue> // queue, priority_queue#include <set> // set#include <stack> // stack#include <deque> // deque#include <unordered_map> // unordered_map#include <unordered_set> // unordered_set#include <bitset> // bitset#include <cctype> // isupper, islower, isdigit, toupper, tolower#include <math.h>#include <cmath>#include <climits>#include <functional>#include <iomanip>#include <limits>#include <cassert>#include <random>#include <complex>#include <numeric>#include <regex>#include <list>#include <ctime>#include <chrono>#include <array>#include <cstring>using namespace std;#define ll long long#define ull unsigned long long#define ld long doubletypedef vector<long long> vll;using LL = long long; using ULL = unsigned long long;using VI = vector<int>; using VVI = vector<VI>; using VVVI = vector<VVI>;using VL = vector<LL>; using VVL = vector<VL>; using VVVL = vector<VVL>;using VB = vector<bool>; using VVB = vector<VB>; using VVVB = vector<VVB>;using VD = vector<double>; using VVD = vector<VD>; using VVVD = vector<VVD>;using VC = vector<char>; using VS = vector<string>; using VVC = vector<VC>;using PII = pair<int,int>; using PLL = pair<LL,LL>; using PDD = pair<double,double>; using PIL = pair<int,LL>;using MII = map<int,int>; using MLL = map<LL,LL>;using SI = set<int>; using SL = set<LL>;using MSI = multiset<int>; using MSL = multiset<LL>;template<class T> using MAXPQ = priority_queue<T>;template<class T> using MINPQ = priority_queue< T, vector<T>, greater<T> >;const ll MOD = 1000000007;const ll MOD2 = 998244353;const ll INF = 1LL << 60;#define PI 3.14159265358979323846#define FOR(i, a, b) for(int i = (a); i < (b); ++i)#define REP(i, n) FOR(i, 0, n)#define EACH(e, v) for(auto &e : v)#define RITR(it, v) for(auto it = (v).rbegin(); it != (v).rend(); ++it)#define ALL(v) v.begin(),v.end()vector<ll> x8={1,1,1,0,0,-1,-1,-1},y8={1,0,-1,1,-1,1,0,-1};int dx4[4]={1,-1,0,0}, dy4[4]={0,0,1,-1};/*memo-uf,RMQ(segtree),BIT,BIT2,SegTree,SegTreeLazy-isprime,Eratosthenes,gcdlcm,factorize,divisors,modpow,moddiv(modpow必要)nCr(+modnCr,inverse,extend_euclid.powmod),tobaseB,tobase10-dijkstra,Floyd,bellmanford,sccd,topological,treediamiter-compress1,compress2,rotate90-co,ci,fo1,fo2,fo3,fo4-bitsearch,binaryserach-bfs(vis.assign忘れるな)-SegTreedec,SegTreeLazydec*/int main(){cin.tie(0);ios_base::sync_with_stdio(0);ll N,K; cin >> N >> K;VD x(N),y(N); for(ll i = 0; i < N; i++) cin >> x[i] >> y[i];double dp[1<<N][N][K];for(ll i = 0; i < 1<<N; i++) for(ll j = 0; j < N; j++) for(ll k = 0; k < K; k++) dp[i][j][k] = INF;for(ll i = 0; i < N; i++) dp[1<<i][i][K-1] = hypot(x[i],y[i]);for(ll i = 0; i < 1<<N; i++){for(ll j = 0; j < N; j++){for(ll k = 0; k < N; k++){if(j!=k and i & 1<<j and !(i & 1<<k)){ll next = i ^ 1<<k;for(ll l = 0; l < K; l++){if(l) dp[next][k][l-1] = min(dp[i][j][l]+hypot(x[j]-x[k],y[j]-y[k]),dp[next][k][l-1]);dp[next][k][K-1] = min(dp[i][j][l]+hypot(x[j],y[j])+hypot(x[k],y[k]),dp[next][k][K-1]);}}}}}double ans = INF;ll all = (1<<N)-1;for(ll j = 0; j < N; j++){for(ll l = 0; l < K; l++){ans = min(dp[all][j][l]+hypot(x[j],y[j]),ans);}}cout << fixed << setprecision(10) << ans << endl;}