結果
| 問題 |
No.382 シャイな人たち (2)
|
| コンテスト | |
| ユーザー |
yosupot
|
| 提出日時 | 2019-02-12 17:49:50 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 215 ms / 8,000 ms |
| コード長 | 4,360 bytes |
| コンパイル時間 | 2,217 ms |
| コンパイル使用メモリ | 191,096 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-09-13 09:43:06 |
| 合計ジャッジ時間 | 6,523 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 21 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
template<class T> using V = vector<T>;
template<class T> using VV = V<V<T>>;
constexpr ll TEN(int n) { return (n == 0) ? 1 : 10 * TEN(n-1); }
#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 fs first
#define sc second
#define pb push_back
#define PB push_back
#define MP make_pair
#define show(x) cerr << #x << " = " << (x) << endl
#define FOR(i, a, b) for(int i=int(a);i<int(b);i++)
#define REP(i,b) FOR(i,0,b)
#define all(x) x.begin(),x.end()
#define ALL(x) x.begin(),x.end()
template<class T, class U> void chmin(T& t, const U& u) { if (t > u) t = u; }
template<class T, class U> void chmax(T& t, const U& u) { if (t < u) t = u; }
template <int N, class E>
struct MaxClique {
using B = bitset<N>;
int n;
V<B> g, col_buf;
V<int> clique, now;
struct P { int id, col, deg; };
void coloring(V<P>& v) {
int m = int(v.size());
sort(v.begin(), v.end(), [&](P a, P b) { return a.deg > b.deg; });
for (int i = 0; i < m; i++) {
v[i].col = 0;
while ((g[v[i].id] & col_buf[v[i].col]).any()) v[i].col++;
col_buf[v[i].col].set(v[i].id);
}
for (int i = 0; i < n; i++) col_buf[i].reset();
sort(v.begin(), v.end(), [&](P a, P b) { return a.col < b.col; });
}
void dfs(V<P> rem) {
if (clique.size() < now.size()) clique = now;
while (!rem.empty()) {
auto p = rem.back();
int i = p.id;
if (now.size() + p.col + 1 <= clique.size()) break;
V<P> nrem;
B bs = B();
for (auto q: rem) {
if (g[i][q.id]) {
nrem.push_back({q.id, -1, 0});
bs.set(q.id);
}
}
for (auto& q: nrem) {
q.deg = (bs & g[q.id]).count();
}
coloring(nrem);
now.push_back(i);
dfs(nrem);
now.pop_back();
rem.pop_back();
}
}
MaxClique(VV<E> _g) : n(int(_g.size())), col_buf(n) {
g = V<B>(n);
V<P> rem;
for (int i = 0; i < n; i++) {
rem.push_back({i, -1, int(_g[i].size())});
for (auto e: _g[i]) g[i][e.to] = 1;
}
coloring(rem);
dfs(rem);
}
};
ll nex(ll S) {
return (S * 12345) % 1000003;
}
int main() {
struct E { int to; };
cin.tie(0);
ios::sync_with_stdio(false);
cout << setprecision(20) << fixed;
ll S;
cin >> S;
S = nex(S);
int n = (S % 120) + 2;
VV<E> g(n);
S = nex(S);
ll P = S;
for (int i = 0; i < n; i++) {
for (int j = i+1; j < n; j++) {
S = nex(S);
if (S < P) {
g[i].push_back({j});
g[j].push_back({i});
}
}
}
auto st = MaxClique<123, E>(g).clique;
int k = int(st.size());
if (n == k) {
cout << -1 << endl;
return 0;
}
cout << k + 1 << endl;
for (int i = 0; i < k; i++) {
cout << st[i] + 1 << (i == k - 1 ? '\n' : ' ');
}
return 0;
}
/*
int main() {
int n, m;
cin >> n >> m;
VV<int> mp(n, V<int>(n, 1));
for (int i = 0; i < m; i++) {
int a, b;
cin >> a >> b; a--; b--;
mp[a][b] = mp[b][a] = 0;
}
struct E { int to; };
VV<E> g(n);
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if (!mp[i][j]) continue;
g[i].push_back({j});
g[j].push_back({i});
}
}
auto cl = MaxClique<E>(g).clique;
cout << cl.size() << endl;
}*/
/*
int main() {
int n, d;
cin >> n >> d;
V<int> a(n), b(n);
for (int i = 0; i < n; i++) {
cin >> a[i] >> b[i];
}
struct E { int to; };
VV<E> g(n);
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
if ((a[i] - a[j]) * (a[i] - a[j]) + (b[i] - b[j]) * (b[i] - b[j]) <= d * d) {
g[i].push_back({j});
g[j].push_back({i});
}
}
}
auto cl = MaxClique<E>(g).clique;
cout << cl.size() << endl;
for (int x: cl) cout << x + 1 << " ";
cout << endl;
}*/
yosupot