#include <bits/stdc++.h> #include <math.h> using namespace std; #define endl "\n" #define mp make_pair #define st first #define nd second #define pii pair<int, int> #define pb push_back #define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10), cin.tie(0), cout.tie(0); #define rep(i, n) for (int i = 0; i < (n); ++i) #define fwd(i, a, b) for (int i = (a); i < (b); ++i) #define trav(a, x) for (auto &a : x) #define all(c) (c).begin(), (c).end() #define sz(X) (int)((X).size()) typedef long double ld; typedef unsigned long long ull; typedef long long ll; // mt19937_64 gen(2137);uniform_int_distribution<int> distr(0, 1e9);auto my_rand = bind(distr, gen); // my_rand() zwraca teraz liczbe z przedzialu [a, b] #ifdef LOCAL ostream &operator<<(ostream &out, string str) { for (char c : str) out << c; return out; } template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> p) { return out << "(" << p.st << ", " << p.nd << ")"; } template <class L, class R, class S> ostream &operator<<(ostream &out, tuple<L, R, S> p) { auto &[a, b, c] = p; return out << "(" << a << ", " << b << ", " << c << ")"; } template <class T> auto operator<<(ostream &out, T a) -> decltype(a.begin(), out) { out << '{'; for (auto it = a.begin(); it != a.end(); it = next(it)) out << (it != a.begin() ? ", " : "") << *it; return out << '}'; } void dump() { cerr << "\n"; } template <class T, class... Ts> void dump(T a, Ts... x) { cerr << a << ", "; dump(x...); } #define debug(...) cerr << "[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__) #else #define debug(...) 42 #endif // ======== DINIC by Marek Cygan ======== namespace DINIC { typedef int res_type; const int EPS = 0; const int INF = 1e9; const int MAXN = 1e6; // ustaw odpowiednia wartosc! struct edge { int v, rev; res_type res; }; vector<edge> nbrs[MAXN]; // puste przed dodawaniem krawedzi! int start[MAXN], dist[MAXN]; void addEdge(int a, int b, res_type c) { debug(a, b, c); nbrs[a].pb({b, sz(nbrs[b]), c}); nbrs[b].pb({a, sz(nbrs[a]) - 1, 0}); } bool bfs(int s, int t, int n) { rep(i, n) dist[i] = -1; dist[s] = 0; queue<int> q; q.push(s); while (!q.empty()) { int u = q.front(); q.pop(); for (edge &e : nbrs[u]) if (e.res > EPS && dist[e.v] == -1) { dist[e.v] = dist[u] + 1; q.push(e.v); } } return dist[t] != -1; } res_type dfs(int x, int t, res_type mini) { res_type ans = 0; if (x == t) return mini; if (mini <= EPS) return 0; for (int &i = start[x]; i < sz(nbrs[x]); ++i) { edge &e = nbrs[x][i]; if (dist[x] + 1 == dist[e.v] && e.res > EPS) { res_type added = dfs(e.v, t, min(mini, e.res)); e.res -= added; nbrs[e.v][e.rev].res += added; mini -= added; ans += added; if (mini <= EPS) break; } } return ans; } int ans = 0; void maxFlow(int s, int t, int n) { int N = 2 * n + 2; while (bfs(s, t, N)) { rep(i, N) start[i] = 0; ans += dfs(s, t, INF); // debug(ans); } } void run(int n, int x) { int s = 2 * n; int t = 2 * n + 1; maxFlow(s, t, n); } void addEdge(int n, int x) { int t = 2 * n + 1; addEdge(n + x, t, 1); } bool should_run(int n, int x) { return dist[n + x] != -1; } void init(vector<vector<int>> &G, int n, int k) { debug(G); ans = 0; int s = 2 * n; int t = 2 * n + 1; rep(i, t + 10) nbrs[i].clear(); rep(i, n) { addEdge(i, n + i, 1); for (auto a : G[i]) addEdge(n + i, a, 1); } rep(i, k) addEdge(s, i, 1); maxFlow(s, t, n); debug(ans); } } // namespace DINIC int32_t main() { _upgrade; int n, m, k; cin >> n >> m >> k; vector<vector<int>> G(n); rep(i, m) { int a, b; cin >> a >> b; debug(a, b); G[--a].push_back(--b); } rep(i, n) random_shuffle(all(G[i])); vector<int> res(k + 1); for (int l = k; l < n; l++) { debug(DINIC::ans); DINIC::init(G, n, k); for (int s = l; s < n; s++) { DINIC::addEdge(n, s); if (DINIC::should_run(n, s)) DINIC::run(n, s); debug(DINIC::ans); res[DINIC::ans]++; } } rep(i, k + 1) cout << res[i] << endl; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | #include <bits/stdc++.h> #include <math.h> using namespace std; #define endl "\n" #define mp make_pair #define st first #define nd second #define pii pair<int, int> #define pb push_back #define _upgrade ios_base::sync_with_stdio(0), cout.setf(ios::fixed), cout.precision(10), cin.tie(0), cout.tie(0); #define rep(i, n) for (int i = 0; i < (n); ++i) #define fwd(i, a, b) for (int i = (a); i < (b); ++i) #define trav(a, x) for (auto &a : x) #define all(c) (c).begin(), (c).end() #define sz(X) (int)((X).size()) typedef long double ld; typedef unsigned long long ull; typedef long long ll; // mt19937_64 gen(2137);uniform_int_distribution<int> distr(0, 1e9);auto my_rand = bind(distr, gen); // my_rand() zwraca teraz liczbe z przedzialu [a, b] #ifdef LOCAL ostream &operator<<(ostream &out, string str) { for (char c : str) out << c; return out; } template <class L, class R> ostream &operator<<(ostream &out, pair<L, R> p) { return out << "(" << p.st << ", " << p.nd << ")"; } template <class L, class R, class S> ostream &operator<<(ostream &out, tuple<L, R, S> p) { auto &[a, b, c] = p; return out << "(" << a << ", " << b << ", " << c << ")"; } template <class T> auto operator<<(ostream &out, T a) -> decltype(a.begin(), out) { out << '{'; for (auto it = a.begin(); it != a.end(); it = next(it)) out << (it != a.begin() ? ", " : "") << *it; return out << '}'; } void dump() { cerr << "\n"; } template <class T, class... Ts> void dump(T a, Ts... x) { cerr << a << ", "; dump(x...); } #define debug(...) cerr << "[" #__VA_ARGS__ "]: ", dump(__VA_ARGS__) #else #define debug(...) 42 #endif // ======== DINIC by Marek Cygan ======== namespace DINIC { typedef int res_type; const int EPS = 0; const int INF = 1e9; const int MAXN = 1e6; // ustaw odpowiednia wartosc! struct edge { int v, rev; res_type res; }; vector<edge> nbrs[MAXN]; // puste przed dodawaniem krawedzi! int start[MAXN], dist[MAXN]; void addEdge(int a, int b, res_type c) { debug(a, b, c); nbrs[a].pb({b, sz(nbrs[b]), c}); nbrs[b].pb({a, sz(nbrs[a]) - 1, 0}); } bool bfs(int s, int t, int n) { rep(i, n) dist[i] = -1; dist[s] = 0; queue<int> q; q.push(s); while (!q.empty()) { int u = q.front(); q.pop(); for (edge &e : nbrs[u]) if (e.res > EPS && dist[e.v] == -1) { dist[e.v] = dist[u] + 1; q.push(e.v); } } return dist[t] != -1; } res_type dfs(int x, int t, res_type mini) { res_type ans = 0; if (x == t) return mini; if (mini <= EPS) return 0; for (int &i = start[x]; i < sz(nbrs[x]); ++i) { edge &e = nbrs[x][i]; if (dist[x] + 1 == dist[e.v] && e.res > EPS) { res_type added = dfs(e.v, t, min(mini, e.res)); e.res -= added; nbrs[e.v][e.rev].res += added; mini -= added; ans += added; if (mini <= EPS) break; } } return ans; } int ans = 0; void maxFlow(int s, int t, int n) { int N = 2 * n + 2; while (bfs(s, t, N)) { rep(i, N) start[i] = 0; ans += dfs(s, t, INF); // debug(ans); } } void run(int n, int x) { int s = 2 * n; int t = 2 * n + 1; maxFlow(s, t, n); } void addEdge(int n, int x) { int t = 2 * n + 1; addEdge(n + x, t, 1); } bool should_run(int n, int x) { return dist[n + x] != -1; } void init(vector<vector<int>> &G, int n, int k) { debug(G); ans = 0; int s = 2 * n; int t = 2 * n + 1; rep(i, t + 10) nbrs[i].clear(); rep(i, n) { addEdge(i, n + i, 1); for (auto a : G[i]) addEdge(n + i, a, 1); } rep(i, k) addEdge(s, i, 1); maxFlow(s, t, n); debug(ans); } } // namespace DINIC int32_t main() { _upgrade; int n, m, k; cin >> n >> m >> k; vector<vector<int>> G(n); rep(i, m) { int a, b; cin >> a >> b; debug(a, b); G[--a].push_back(--b); } rep(i, n) random_shuffle(all(G[i])); vector<int> res(k + 1); for (int l = k; l < n; l++) { debug(DINIC::ans); DINIC::init(G, n, k); for (int s = l; s < n; s++) { DINIC::addEdge(n, s); if (DINIC::should_run(n, s)) DINIC::run(n, s); debug(DINIC::ans); res[DINIC::ans]++; } } rep(i, k + 1) cout << res[i] << endl; } |