#include "bits/stdc++.h" // Tomasz Nowak
using namespace std; // University of Warsaw
using LL = long long;
#define FOR(i, l, r) for(int i = (l); i <= (r); ++i)
#define REP(i, n) FOR(i, 0, (n) - 1)
#define ssize(x) int(x.size())
template<class A, class B> auto& operator<<(ostream &o, pair<A, B> p) {
return o << '(' << p.first << ", " << p.second << ')';
}
template<class T> auto operator<<(ostream &o, T x) -> decltype(x.end(), o) {
o << '{'; int i = 0; for(auto e : x) o << (", ")+2*!i++ << e; return o << '}';
}
#ifdef DEBUG
#define debug(x...) cerr << "[" #x "]: ", [](auto... $) {((cerr << $ << "; "), ...); }(x), cerr << '\n'
#else
#define debug(...) {}
#endif
int main() {
cin.tie(0)->sync_with_stdio(0);
int n;
cin >> n;
vector<vector<int>> graph(n);
for(auto &vec : graph) {
int l;
cin >> l;
vec.resize(l);
for(int &u : vec) {
cin >> u;
--u;
}
}
debug(graph);
vector<vector<int>> revgraph(n);
REP(v, n)
for(int u : graph[v])
revgraph[u].emplace_back(v);
debug(revgraph);
vector<LL> answer(n);
REP(out, n) {
vector<int> outdeg(n);
REP(v, n)
outdeg[v] = ssize(graph[v]);
vector<int> sztos = {out};
vector<int> max_id(n);
iota(max_id.begin(), max_id.end(), 0);
max_id[out] = out;
outdeg[out] = 0;
while(not sztos.empty()) {
int v = sztos.back();
if(v != out) {
debug(v, out, max_id[v]);
++answer[max_id[v]];
}
sztos.pop_back();
for(int u : revgraph[v]) {
max_id[u] = max(max_id[u], max_id[v]);
if(--outdeg[u] == 0)
sztos.emplace_back(u);
}
}
}
FOR(i, 1, n - 1)
answer[i] += answer[i - 1];
for(LL a : answer)
cout << a << ' ';
cout << '\n';
}
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 | #include "bits/stdc++.h" // Tomasz Nowak using namespace std; // University of Warsaw using LL = long long; #define FOR(i, l, r) for(int i = (l); i <= (r); ++i) #define REP(i, n) FOR(i, 0, (n) - 1) #define ssize(x) int(x.size()) template<class A, class B> auto& operator<<(ostream &o, pair<A, B> p) { return o << '(' << p.first << ", " << p.second << ')'; } template<class T> auto operator<<(ostream &o, T x) -> decltype(x.end(), o) { o << '{'; int i = 0; for(auto e : x) o << (", ")+2*!i++ << e; return o << '}'; } #ifdef DEBUG #define debug(x...) cerr << "[" #x "]: ", [](auto... $) {((cerr << $ << "; "), ...); }(x), cerr << '\n' #else #define debug(...) {} #endif int main() { cin.tie(0)->sync_with_stdio(0); int n; cin >> n; vector<vector<int>> graph(n); for(auto &vec : graph) { int l; cin >> l; vec.resize(l); for(int &u : vec) { cin >> u; --u; } } debug(graph); vector<vector<int>> revgraph(n); REP(v, n) for(int u : graph[v]) revgraph[u].emplace_back(v); debug(revgraph); vector<LL> answer(n); REP(out, n) { vector<int> outdeg(n); REP(v, n) outdeg[v] = ssize(graph[v]); vector<int> sztos = {out}; vector<int> max_id(n); iota(max_id.begin(), max_id.end(), 0); max_id[out] = out; outdeg[out] = 0; while(not sztos.empty()) { int v = sztos.back(); if(v != out) { debug(v, out, max_id[v]); ++answer[max_id[v]]; } sztos.pop_back(); for(int u : revgraph[v]) { max_id[u] = max(max_id[u], max_id[v]); if(--outdeg[u] == 0) sztos.emplace_back(u); } } } FOR(i, 1, n - 1) answer[i] += answer[i - 1]; for(LL a : answer) cout << a << ' '; cout << '\n'; } |
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