結果
問題 | No.1065 電柱 / Pole (Easy) |
ユーザー | kcvlex |
提出日時 | 2020-05-30 02:27:36 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 308 ms / 2,000 ms |
コード長 | 4,987 bytes |
コンパイル時間 | 1,661 ms |
コンパイル使用メモリ | 160,240 KB |
実行使用メモリ | 37,160 KB |
最終ジャッジ日時 | 2024-11-06 16:57:39 |
合計ジャッジ時間 | 8,414 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
(要ログイン)
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
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 143 ms
19,040 KB |
testcase_03 | AC | 175 ms
36,868 KB |
testcase_04 | AC | 174 ms
36,216 KB |
testcase_05 | AC | 132 ms
37,160 KB |
testcase_06 | AC | 132 ms
35,200 KB |
testcase_07 | AC | 42 ms
11,264 KB |
testcase_08 | AC | 151 ms
32,656 KB |
testcase_09 | AC | 14 ms
6,816 KB |
testcase_10 | AC | 69 ms
16,512 KB |
testcase_11 | AC | 48 ms
12,416 KB |
testcase_12 | AC | 25 ms
10,880 KB |
testcase_13 | AC | 142 ms
22,508 KB |
testcase_14 | AC | 170 ms
26,828 KB |
testcase_15 | AC | 197 ms
29,792 KB |
testcase_16 | AC | 84 ms
17,676 KB |
testcase_17 | AC | 216 ms
31,804 KB |
testcase_18 | AC | 61 ms
13,912 KB |
testcase_19 | AC | 213 ms
29,912 KB |
testcase_20 | AC | 50 ms
10,504 KB |
testcase_21 | AC | 70 ms
16,724 KB |
testcase_22 | AC | 186 ms
28,808 KB |
testcase_23 | AC | 3 ms
6,816 KB |
testcase_24 | AC | 3 ms
6,820 KB |
testcase_25 | AC | 23 ms
10,496 KB |
testcase_26 | AC | 104 ms
18,964 KB |
testcase_27 | AC | 100 ms
18,852 KB |
testcase_28 | AC | 188 ms
29,684 KB |
testcase_29 | AC | 17 ms
7,808 KB |
testcase_30 | AC | 202 ms
32,484 KB |
testcase_31 | AC | 134 ms
25,400 KB |
testcase_32 | AC | 84 ms
16,720 KB |
testcase_33 | AC | 198 ms
33,596 KB |
testcase_34 | AC | 61 ms
13,784 KB |
testcase_35 | AC | 209 ms
34,780 KB |
testcase_36 | AC | 3 ms
6,816 KB |
testcase_37 | AC | 4 ms
6,816 KB |
testcase_38 | AC | 3 ms
6,820 KB |
testcase_39 | AC | 4 ms
6,820 KB |
testcase_40 | AC | 2 ms
6,820 KB |
testcase_41 | AC | 308 ms
33,868 KB |
testcase_42 | AC | 78 ms
12,800 KB |
testcase_43 | AC | 139 ms
19,720 KB |
testcase_44 | AC | 44 ms
9,472 KB |
testcase_45 | AC | 149 ms
19,156 KB |
testcase_46 | AC | 2 ms
6,816 KB |
testcase_47 | AC | 2 ms
6,816 KB |
ソースコード
#define CPP17 #include <limits> #include <initializer_list> #include <utility> #include <bitset> #include <tuple> #include <type_traits> #include <functional> #include <string> #include <array> #include <deque> #include <list> #include <queue> #include <stack> #include <vector> #include <map> #include <set> #include <unordered_map> #include <unordered_set> #include <iterator> #include <algorithm> #include <complex> #include <random> #include <numeric> #include <iostream> #include <iomanip> #include <sstream> #include <regex> #include <cassert> #include <cstddef> #ifdef CPP17 #include <variant> #endif // Yay!! #define endl codeforces // macros for iterator #define ALL(v) std::begin(v), std::end(v) #define ALLR(v) std::rbegin(v), std::rend(v) // alias using ll = std::int64_t; using ull = std::uint64_t; using pii = std::pair<int, int>; using tii = std::tuple<int, int, int>; using pll = std::pair<ll, ll>; using tll = std::tuple<ll, ll, ll>; template <typename T> using vec = std::vector<T>; template <typename T> using vvec = vec<vec<T>>; // variadic min/max template <typename T> const T& var_min(const T &t) { return t; } template <typename T> const T& var_max(const T &t) { return t; } template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return std::min(t, var_min(tail...)); } template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return std::max(t, var_max(tail...)); } // variadic chmin/chmax template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); } template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); } // multi demension array template <typename T, std::size_t Head, std::size_t... Tail> struct multi_dim_array { using type = std::array<typename multi_dim_array<T, Tail...>::type, Head>; }; template <typename T, std::size_t Head> struct multi_dim_array<T, Head> { using type = std::array<T, Head>; }; template <typename T, std::size_t... Args> using mdarray = typename multi_dim_array<T, Args...>::type; #ifdef CPP17 // fill container template <typename T, typename F, typename... Args> void fill_seq(T &t, F f, Args... args) { if constexpr (std::is_invocable<F, Args...>::value) { t = f(args...); } else { for (ssize_t i = 0; i < t.size(); i++) fill_seq(t[i], f, args..., i); } } #endif // make multi dimension vector template <typename T> vec<T> make_v(ssize_t sz) { return vec<T>(sz); } template <typename T, typename... Tail> auto make_v(ssize_t hs, Tail&&... ts) { auto v = std::move(make_v<T>(std::forward<Tail>(ts)...)); return vec<decltype(v)>(hs, v); } // init namespace init__ { struct InitIO { InitIO() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(30); } } init_io; } namespace tree { struct UnionFind { vec<ll> rank, par; vec<ssize_t> sz; UnionFind(ll n) : rank(n), par(n), sz(n) { init(); } void init() { std::fill(ALL(rank), 1); std::iota(ALL(par), 0); std::fill(ALL(sz), 1); } ll find(ll n) { return (n == par[n] ? n : par[n] = find(par[n])); } bool unit(ll x, ll y) { ll px = find(x), py = find(y); if (px == py) return false; if (rank[px] < rank[py]) std::swap(px, py); par[py] = px; rank[px] += (rank[px] == rank[py]); sz[px] += sz[py]; return true; } bool same(ll x, ll y) { return find(x) == find(y); } ssize_t size(ll n) { return sz[find(n)]; } }; } int main() { using ld = long double; using pdd = std::pair<ld, ld>; using pld = std::pair<ll, ld>; using pdl = std::pair<ld, ll>; ll n, m, x, y; std::cin >> n >> m; std::cin >> x >> y; x--; y--; vec<pdd> vn(n); for (auto &&e : vn) { ld a, b; std::cin >> a >> b; e = pll(a, b); } auto pow2 = [](ld a) { return a * a; }; auto dist = [&](pdd p, pdd q) { auto [ a, b ] = p; auto [ c, d ] = q; return std::sqrt(pow2(a - c) + pow2(b - d)); }; vvec<pld> edges(n); for (ll i = 0; i < m; i++) { ll a, b; std::cin >> a >> b; a--; b--; auto d = dist(vn[a], vn[b]); edges[a].emplace_back(b, d); edges[b].emplace_back(a, d); } const ld inf = std::numeric_limits<ld>::max() / 3; vec<ld> dists(n, inf); dists[x] = 0; std::priority_queue<pdl, vec<pdl>, std::greater<pdl>> pq; pq.emplace(0, x); while (pq.size()) { auto [ d, cur ] = pq.top(); pq.pop(); if (dists[cur] < d) continue; for (auto &&e : edges[cur]) { auto [ nxt, cost ] = e; auto nd = d + cost; if (dists[nxt] <= nd) continue; dists[nxt] = nd; pq.emplace(nd, nxt); } } std::cout << dists[y] << "\n"; return 0; }