#include <bits/stdc++.h> using namespace std; vector <long long> solve(int n, vector <vector<int>> &g, vector <vector<int>> &gRev) { vector <long long> ans(n, 0); vector <int> numGood(n, 0); vector <vector<int>> deg(n, vector <int> (n)); for (int v = 0; v < n; v++) { for (int u = 0; u < n; u++) { deg[v][u] = g[u].size(); } } for (int r = 0; r < n; r++) { for (int v = 0; v <= r; v++) if (v == r || deg[v][r] == 0) { queue <int> q; q.push(r); while (!q.empty()) { int u = q.front(); q.pop(); if (u != v) { numGood[u]++; } for (int p : gRev[u]) if (p != v) { deg[v][p]--; if (p <= r && deg[v][p] == 0) { q.push(p); } } } } for (int v = 0; v < n; v++) { ans[r] += numGood[v]; } } return ans; } int main() { ios_base::sync_with_stdio(false); int n; cin >> n; vector <vector<int>> g(n), gRev(n); for (int v = 0; v < n; v++) { int l; cin >> l; while (l--) { int u; cin >> u; u--; g[v].push_back(u); gRev[u].push_back(v); } } auto ans = solve(n, g, gRev); for (long long &x : ans) { cout << x << ' '; } return 0; }
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 | #include <bits/stdc++.h> using namespace std; vector <long long> solve(int n, vector <vector<int>> &g, vector <vector<int>> &gRev) { vector <long long> ans(n, 0); vector <int> numGood(n, 0); vector <vector<int>> deg(n, vector <int> (n)); for (int v = 0; v < n; v++) { for (int u = 0; u < n; u++) { deg[v][u] = g[u].size(); } } for (int r = 0; r < n; r++) { for (int v = 0; v <= r; v++) if (v == r || deg[v][r] == 0) { queue <int> q; q.push(r); while (!q.empty()) { int u = q.front(); q.pop(); if (u != v) { numGood[u]++; } for (int p : gRev[u]) if (p != v) { deg[v][p]--; if (p <= r && deg[v][p] == 0) { q.push(p); } } } } for (int v = 0; v < n; v++) { ans[r] += numGood[v]; } } return ans; } int main() { ios_base::sync_with_stdio(false); int n; cin >> n; vector <vector<int>> g(n), gRev(n); for (int v = 0; v < n; v++) { int l; cin >> l; while (l--) { int u; cin >> u; u--; g[v].push_back(u); gRev[u].push_back(v); } } auto ans = solve(n, g, gRev); for (long long &x : ans) { cout << x << ' '; } return 0; } |