結果
| 問題 |
No.1778 括弧列クエリ / Bracketed Sequence Query
|
| コンテスト | |
| ユーザー |
eggkid6
|
| 提出日時 | 2022-01-21 22:36:10 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 3,406 bytes |
| コンパイル時間 | 1,688 ms |
| コンパイル使用メモリ | 177,100 KB |
| 実行使用メモリ | 28,544 KB |
| 最終ジャッジ日時 | 2024-11-26 01:35:23 |
| 合計ジャッジ時間 | 10,347 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | RE * 1 |
| other | RE * 27 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using V = vector<ll>;
using VV = vector<V>;
using VVV = vector<VV>;
using VS = vector<string>;
using VB = vector<bool>;
using VVB = vector<VB>;
using P = pair<ll,ll>;
using VP = vector<P>;
using M = map<ll,ll>;
using Q = queue<ll>;
using PQ = priority_queue<ll>;
using PQG = priority_queue<ll,V,greater<ll>>;
using S = set<ll>;
const ll MOD = 1000000007;
const ll mod = 998244353;
const ll INF = 1LL << 60;
#define rep(i,n) for(ll i = 0; i < n; i++)
#define rep2(i,s,n) for(ll i = s; i < n; i++)
#define per(i,n) for(ll i = n; i >= 0; i--)
#define per2(i,s,n) for(ll i = n; i >= s; i--)
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
#define fi first
#define se second
#define pb push_back
#define pf push_front
#define ppb pop_back
#define ppf pop_front
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
template<class T>bool chmin(T&a, const T&b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool chmax(T&a, const T&b){if(a<b){a=b;return 1;}return 0;}
template<class T>void Vin(vector<T>&a){rep(i,(ll)a.size())cin>>a[i];}
template<class T>void VVin(vector<vector<T>>&a){rep(i,(ll)a.size())rep(j,(ll)a[i].size())cin>>a[i][j];}
template<class T>void Vout(const vector<T>&a){rep(i,(int)a.size())cout<<a[i]<<endl;}
ll power(ll a,ll b,const ll&M){a%=M;ll res=1;while(b>0){if(b&1)res=res*a%M;a=a*a%M;b>>=1;}return res;}
const ll H[4] = {0,1,0,-1}, W[4] = {1,0,-1,0};
struct LCA {
VV par;
V dis;
LCA() {}
LCA(const VV &G, ll root = 0) {
ll v = G.size(), k = 0;
while(v) {
v >>= 1;
k++;
par.assign(k,V(v,-1));
dfs(G, root, -1, 0);
rep(i,k-1) rep(j,v) {
if(par[i][j] < 0) par[i+1][j] = -1;
else par[i+1][j] = par[i][par[i][j]];
}
}
}
void dfs(const VV &G, ll v, ll p, ll d) {
par[0][v] = p;
dis[v] = d;
for(ll nv : G[v]) if(nv != p) dfs(G, nv, v, d+1);
}
ll lca(ll u, ll v) {
if(dis[u] < dis[v]) swap(u,v);
ll k = par.size();
rep(i,k) if(dis[u]-dis[v] & 1<<i) u = par[i][u];
if(u == v) return u;
per(i,k) if(par[i][u] != par[i][v]) {
u = par[i][u];
v = par[i][v];
}
return par[0][u];
}
};
struct UnionFind {
vector<long long> par, rank;
UnionFind() {}
UnionFind(long long n) : par(n), rank(n) {
for(long long i = 0; i < n; i++) par[i] = i, rank[i] = 0;
}
long long root(long long v) {
return par[v] == v ? v : par[v] = root(par[v]);
}
bool unite(long long sv, long long tv) {
sv = root(sv);
tv = root(tv);
if(sv == tv) return 0;
if(rank[sv] > rank[tv]) swap(sv,tv);
par[sv] = tv;
if(rank[sv] == rank[tv]) rank[tv]++;
return 1;
}
bool same(long long sv, long long tv) {
return root(sv) == root(tv);
}
};
void f(VV &G, string &s, ll &cnt, ll &v, UnionFind &uf) {
ll now = v;
while(s[cnt++] == '(') {
uf.unite(now,++v);
G[now].pb(v);
G[v].pb(now);
f(G, s, cnt, v, uf);
}
}
int main() {
ll n, q;
string s;
cin >> n >> q >> s;
UnionFind uf(n/2);
VV G(n/2);
ll cnt = 0, v = 0;
while(cnt < n) f(G, s, ++cnt, v, uf);
LCA l(G);
}
eggkid6