結果
問題 | No.2677 Minmax Independent Set |
ユーザー | だれ |
提出日時 | 2024-03-15 22:44:19 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,490 bytes |
コンパイル時間 | 3,751 ms |
コンパイル使用メモリ | 236,520 KB |
実行使用メモリ | 21,528 KB |
最終ジャッジ日時 | 2024-09-30 02:12:06 |
合計ジャッジ時間 | 8,951 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 1 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 86 ms
19,776 KB |
testcase_06 | AC | 84 ms
19,776 KB |
testcase_07 | AC | 83 ms
19,736 KB |
testcase_08 | AC | 87 ms
19,776 KB |
testcase_09 | AC | 83 ms
19,776 KB |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | AC | 87 ms
19,780 KB |
testcase_13 | AC | 95 ms
20,456 KB |
testcase_14 | AC | 88 ms
20,820 KB |
testcase_15 | AC | 96 ms
20,512 KB |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | AC | 70 ms
21,388 KB |
testcase_29 | AC | 88 ms
19,764 KB |
testcase_30 | AC | 2 ms
6,816 KB |
testcase_31 | AC | 2 ms
6,820 KB |
testcase_32 | AC | 1 ms
6,820 KB |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | WA | - |
testcase_41 | WA | - |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | WA | - |
testcase_45 | WA | - |
testcase_46 | WA | - |
testcase_47 | WA | - |
testcase_48 | WA | - |
testcase_49 | WA | - |
testcase_50 | AC | 26 ms
10,200 KB |
testcase_51 | AC | 4 ms
6,816 KB |
testcase_52 | AC | 60 ms
18,332 KB |
testcase_53 | AC | 58 ms
17,172 KB |
testcase_54 | AC | 3 ms
6,816 KB |
testcase_55 | WA | - |
testcase_56 | WA | - |
testcase_57 | WA | - |
testcase_58 | WA | - |
testcase_59 | WA | - |
testcase_60 | AC | 70 ms
20,064 KB |
testcase_61 | WA | - |
testcase_62 | AC | 65 ms
19,776 KB |
testcase_63 | WA | - |
ソースコード
#include <algorithm> #include <bitset> #include <cassert> #include <cmath> #include <complex> #include <cstdio> #include <fstream> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <sstream> #include <stack> #include <unordered_set> using namespace std; #if __has_include(<atcoder/all>) #include <atcoder/all> #endif #define GET_MACRO(_1, _2, _3, NAME, ...) NAME #define _rep(i, n) _rep2(i, 0, n) #define _rep2(i, a, b) for (int i = (int)(a); i < (int)(b); i++) #define rep(...) GET_MACRO(__VA_ARGS__, _rep2, _rep)(__VA_ARGS__) #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define UNIQUE(x) \ std::sort((x).begin(), (x).end()); \ (x).erase(std::unique((x).begin(), (x).end()), (x).end()) using i64 = long long; template <class T, class U> bool chmin(T& a, const U& b) { return (b < a) ? (a = b, true) : false; } template <class T, class U> bool chmax(T& a, const U& b) { return (b > a) ? (a = b, true) : false; } template <class T = std::string, class U = std::string> inline void YesNo(bool&& f = 0, const T yes = "Yes", const U no = "No") { if (f) std::cout << yes << "\n"; else std::cout << no << "\n"; } namespace io { template <typename T> istream& operator>>(istream& i, vector<T>& v) { rep(j, v.size()) i >> v[j]; return i; } template <typename T> string join(vector<T>& v) { stringstream s; rep(i, v.size()) s << ' ' << v[i]; return s.str().substr(1); } template <typename T> ostream& operator<<(ostream& o, vector<T>& v) { if (v.size()) o << join(v); return o; } template <typename T> string join(vector<vector<T>>& vv) { string s = "\n"; rep(i, vv.size()) s += join(vv[i]) + "\n"; return s; } template <typename T> ostream& operator<<(ostream& o, vector<vector<T>>& vv) { if (vv.size()) o << join(vv); return o; } template <class T, class U> istream& operator>>(istream& i, pair<T, U>& p) { i >> p.first >> p.second; return i; } template <class T, class U> ostream& operator<<(ostream& o, pair<T, U>& p) { o << p.first << " " << p.second; return o; } void print() { cout << "\n"; } template <class Head, class... Tail> void print(Head&& head, Tail&&... tail) { cout << head; if (sizeof...(tail)) cout << ' '; print(std::forward<Tail>(tail)...); } void in() {} template <class Head, class... Tail> void in(Head&& head, Tail&&... tail) { cin >> head; in(std::forward<Tail>(tail)...); } } // namespace io using namespace io; namespace useful { long long modpow(long long a, long long b, long long mod) { long long res = 1; while (b) { if (b & 1) res *= a, res %= mod; a *= a; a %= mod; b >>= 1; } return res; } bool is_pow2(long long x) { return x > 0 && (x & (x - 1)) == 0; } template <class T> void rearrange(vector<T>& a, vector<int>& p) { vector<T> b = a; for (int i = 0; i < int(a.size()); i++) { a[i] = b[p[i]]; } return; } template <class T> vector<pair<int, int>> rle_sequence(T& a) { vector<pair<int, int>> res; int n = a.size(); if (n == 1) return vector<pair<int, int>>{{a[0], 1}}; int l = 1; rep(i, n - 1) { if (a[i] == a[i + 1]) l++; else { res.emplace_back(a[i], l); l = 1; } } res.emplace_back(a.back(), l); return res; } vector<pair<char, int>> rle_string(string a) { vector<pair<char, int>> res; int n = a.size(); if (n == 1) return vector<pair<char, int>>{{a[0], 1}}; int l = 1; rep(i, n - 1) { if (a[i] == a[i + 1]) l++; else { res.emplace_back(a[i], l); l = 1; } } res.emplace_back(a.back(), l); return res; } vector<int> linear_sieve(int n) { vector<int> primes; vector<int> res(n + 1); iota(all(res), 0); for (int i = 2; i <= n; i++) { if (res[i] == i) primes.emplace_back(i); for (auto j : primes) { if (j * i > n) break; res[j * i] = j; } } return res; // return primes; } template <class T> vector<long long> dijkstra(vector<vector<pair<int, T>>>& graph, int start) { int n = graph.size(); vector<long long> res(n, 2e18); res[start] = 0; priority_queue<pair<long long, int>, vector<pair<long long, int>>, greater<pair<long long, int>>> que; que.push({0, start}); while (!que.empty()) { auto [c, v] = que.top(); que.pop(); if (res[v] < c) continue; for (auto [nxt, cost] : graph[v]) { auto x = c + cost; if (x < res[nxt]) { res[nxt] = x; que.push({x, nxt}); } } } return res; } } // namespace useful using namespace useful; using P = pair<int, int>; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int n; in(n); vector<vector<int>> e(n); rep(i, n - 1) { int a, b; in(a, b); a--, b--; e[a].emplace_back(b); e[b].emplace_back(a); } vector<int> bfs_order; queue<int> que; vector<int> dist(n, 1e9); que.emplace(0); dist[0] = 0; vector<int> par(n, -1); while (que.size()) { auto v = que.front(); que.pop(); bfs_order.push_back(v); for (auto j : e[v]) { if (chmin(dist[j], dist[v] + 1)) que.emplace(j); else par[v] = j; } } vector<P> dp1(n); reverse(all(bfs_order)); for (auto v : bfs_order) { P res = make_pair(0, 1); for (auto c : e[v]) { if (c == par[v]) continue; auto [x, y] = dp1[c]; res.first += y; res.second += x; } dp1[v] = res; } reverse(all(bfs_order)); vector<P> dpp(n); int ans = 1e9; for (auto v : bfs_order) { P d = dp1[v]; d.first += dpp[v].second; d.second += dpp[v].first; chmin(ans, d.second); for (auto c : e[v]) { if (c == par[v]) continue; d.first -= dp1[c].second; d.second -= dp1[c].first; dpp[c] = d; d.first += dp1[c].second; d.second += dp1[c].first; } } print(ans); }