結果
問題 | No.2403 "Eight" Bridges of Königsberg |
ユーザー | fuppy_kyopro |
提出日時 | 2023-08-04 22:49:01 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,139 bytes |
コンパイル時間 | 6,767 ms |
コンパイル使用メモリ | 239,068 KB |
実行使用メモリ | 16,120 KB |
最終ジャッジ日時 | 2024-10-14 20:55:28 |
合計ジャッジ時間 | 7,241 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
(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
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 15 ms
5,248 KB |
testcase_05 | AC | 28 ms
5,248 KB |
testcase_06 | AC | 32 ms
5,248 KB |
testcase_07 | AC | 19 ms
5,248 KB |
testcase_08 | AC | 22 ms
5,248 KB |
testcase_09 | AC | 32 ms
5,248 KB |
testcase_10 | AC | 33 ms
5,248 KB |
testcase_11 | AC | 24 ms
5,248 KB |
testcase_12 | AC | 32 ms
5,248 KB |
testcase_13 | AC | 22 ms
5,248 KB |
testcase_14 | AC | 1 ms
5,248 KB |
testcase_15 | AC | 2 ms
5,248 KB |
testcase_16 | AC | 2 ms
5,248 KB |
testcase_17 | AC | 2 ms
5,248 KB |
testcase_18 | AC | 2 ms
5,248 KB |
testcase_19 | AC | 50 ms
16,120 KB |
testcase_20 | AC | 8 ms
6,016 KB |
testcase_21 | AC | 25 ms
9,728 KB |
testcase_22 | AC | 43 ms
14,788 KB |
testcase_23 | AC | 44 ms
14,428 KB |
testcase_24 | AC | 27 ms
12,136 KB |
testcase_25 | AC | 32 ms
11,648 KB |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
ソースコード
//* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> // #include <atcoder/convolution> using namespace std; // using namespace atcoder; // #define _GLIBCXX_DEBUG #define DEBUG(x) cerr << #x << ": " << x << endl; #define DEBUG_VEC(v) \ cerr << #v << ":"; \ for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \ cerr << " " << v[iiiiiiii]; \ cerr << endl; #define DEBUG_MAT(v) \ cerr << #v << endl; \ for (int iv = 0; iv < v.size(); iv++) { \ for (int jv = 0; jv < v[iv].size(); jv++) { \ cerr << v[iv][jv] << " "; \ } \ cerr << endl; \ } typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector<vector<int>> #define vll vector<vector<ll>> #define vs vector<string> #define pii pair<int, int> #define pis pair<int, string> #define psi pair<string, int> #define pll pair<ll, ll> template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> ostream &operator<<(ostream &os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep1(i, n) for (int i = 1; i <= (int)(n); i++) #define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define rrep1(i, n) for (int i = (int)(n); i > 0; i--) #define REP(i, a, b) for (int i = a; i < b; i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(), c.end() void YES(bool t = true) { cout << (t ? "YES" : "NO") << endl; } void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; } void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; } void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; } void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; } void no(bool t = true) { cout << (t ? "no" : "yes") << endl; } template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (a > b) { a = b; return 1; } return 0; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 0, -1, 1}, dy = {-1, 1, 0, 0}; vi dx2 = {1, 1, 0, -1, -1, -1, 0, 1}, dy2 = {0, 1, 1, 1, 0, -1, -1, -1}; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); } } setup_io; // const ll MOD = 1000000007; const ll MOD = 998244353; // #define mp make_pair //#define endl '\n' class UnionFind { private: vi par_; //�e vi ran_; //�̐[�� vi num_; //�v�f�� vi edge_num_; //�v�f�� public: int n; int g; // group�� UnionFind(int _n) { n = _n; g = n; par_.resize(n); ran_.resize(n); num_.resize(n); edge_num_.resize(n); for (int i = 0; i < n; i++) { par_[i] = i; ran_[i] = 0; num_[i] = 1; edge_num_[i] = 0; } } //�̍������߂� int find(int x) { if (par_[x] == x) { return x; } else { return par_[x] = find(par_[x]); } } //x��y�̑�����W���� void unite(int x, int y) { x = find(x); y = find(y); int numsum = num_[x] + num_[y]; int edge_numsum = edge_num_[x] + edge_num_[y]; if (x == y) { edge_num_[x]++; return; } if (ran_[x] < ran_[y]) { par_[x] = y; } else { par_[y] = x; if (ran_[x] == ran_[y]) { ran_[x]++; } } num_[x] = num_[y] = numsum; edge_num_[x] = edge_num_[y] = edge_numsum + 1; g--; } //x��y�������W���ɑ����邩�ۂ� bool same(int x, int y) { return find(x) == find(y); } int num(int x) { return num_[find(x)]; } int edge_num(int x) { return edge_num_[find(x)]; } }; signed main() { int n, m; cin >> n >> m; vi in_num(n), out_num(n); UnionFind uf(n); rep(i, m) { int u, v; cin >> u >> v; u--; v--; uf.unite(u, v); out_num[u]++; in_num[v]++; } map<int, int> mp; int ko = 0; rep(i, n) { int r = uf.find(i); if (in_num[i] > out_num[i]) { mp[r] += in_num[i] - out_num[i]; } else if (in_num[i] == 0 && out_num[i] == 0) { ko++; } mp[r]; } int g = uf.g; vi needs; for (auto itr : mp) { needs.push_back(max(0, itr.second - 1)); } sort(all(needs)); reverse(all(needs)); rep(_, ko) { assert(needs.back() == 0); needs.pop_back(); g--; } DEBUG(needs.size()); DEBUG(g); assert(needs.size() == g); DEBUG_VEC(needs); rep(i, max(0, g - 2)) { if (needs[i] > 0) { needs[i]--; } } ll sum = 0; rep(i, g) { sum += needs[i]; } sum += max(0, g - 1); cout << sum << endl; }