結果
| 問題 |
No.3148 Min-Cost Destruction of Parentheses
|
| コンテスト | |
| ユーザー |
hint908
|
| 提出日時 | 2025-05-16 22:23:53 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 116 ms / 4,000 ms |
| コード長 | 3,795 bytes |
| コンパイル時間 | 4,169 ms |
| コンパイル使用メモリ | 290,740 KB |
| 実行使用メモリ | 13,740 KB |
| 最終ジャッジ日時 | 2025-05-16 22:24:02 |
| 合計ジャッジ時間 | 6,332 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 31 |
ソースコード
// #pragma GCC target("avx2")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
template<class T> using V = vector<T>;
template<class T> using VV = V<V<T>>;
template<class T> using VVV = V<VV<T>>;
template<class T> using VVVV = VV<VV<T>>;
#define rep(i,n) for(ll i=0ll;(i)<(n);(i)++)
#define REP(i,a,n) for(ll i=(a);(i)<(n);(i)++)
#define rrep(i,n) for(ll i=(n)-1;(i)>=(0ll);(i)--)
#define RREP(i,a,n) for(ll i=(n)-1;(i)>=(a);(i)--)
const long long INF = (1LL << 60);
const long long mod99 = 998244353;
const long long mod107 = 1000000007;
const long long mod = mod99;
#define eb emplace_back
#define be(v) (v).begin(),(v).end()
#define all(v) (v).begin(),(v).end()
#define foa(i,v) for(auto& (i) : (v))
#define UQ(v) sort(be(v)), (v).erase(unique(be(v)), (v).end())
#define UQ2(v,cmp) sort(be(v)), (v).erase(unique(be(v),cmp), (v).end())
#define UQ3(v,cmp) sort(be(v),cmp), (v).erase(unique(be(v)), (v).end())
#define UQ4(v,cmp,cmp2) sort(be(v), cmp), (v).erase(unique(be(v),cmp2), (v).end())
#define LB(x,v) (lower_bound(be(v),(x))-(v).begin())
#define LB2(x,v,cmp) (lower_bound(be(v),(x),(cmp))-(v).begin())
#define UB(x,v) (upper_bound(be(v),(x))-(v).begin())
#define UB2(x,v,cmp) (upper_bound(be(v),(x),(cmp))-(v).begin())
#define dout() cout << fixed << setprecision(20)
#define randinit() srand((unsigned)time(NULL))
template<class T, class U> bool chmin(T& t, const U& u) { if (t > u){ t = u; return 1;} return 0; }
template<class T, class U> bool chmax(T& t, const U& u) { if (t < u){ t = u; return 1;} return 0; }
ll Rnd(ll L=0, ll R=mod99){return rand()%(R-L)+L;}
struct S{
ll a,b,id;
bool operator<(const S&v) const{
if(a*v.b != b*v.a) return a*v.b > b*v.a;
return id < v.id;
}
};
struct UnionFind {
vector<long long> par;
long long gn;
UnionFind(long long N) : par(N, -1), gn(N){ }
long long root(long long x) {
if (par[x] < 0) return x;
return par[x] = root(par[x]);
}
long long size(long long x) {
return -par[root(x)];
}
bool merge(long long x, long long y) {
long long rx = root(x), ry = root(y);
if (rx == ry) return 0;
gn --;
if (ry > rx) swap(rx, ry);
par[ry] += par[rx];
par[rx] = ry;
return 1;
}
bool same(long long x, long long y) {
return root(x) == root(y);
}
};
void solve(){
ll n;
string s;
cin >> n >> s;
V<ll> v(n+1, 0);
rep(i,n) cin >> v[i+1];
n++;
s = "(" + s + ")";
stack<ll> stk;
string t = "";
ll cnt = 0;
V<ll> p(n, 0);
for(auto c:s){
if(c == '('){
if(cnt) p[cnt] = stk.top();
stk.push(cnt++);
t += c;
}else{
t.pop_back();
stk.pop();
}
}
V<ll> a(n, 0), b(n, 0);
REP(i,1,n){
b[i] = 1;
a[i] = v[i];
}
set<S> st;
REP(i, 1, n) st.insert(S{a[i], b[i], i});
UnionFind uf(n);
ll ans = 0;
while(!st.empty()){
auto s = *st.begin();
// cout << s.a << " " << s.b << " " << s.id << endl;
st.erase(st.begin());
ll pid = uf.root(p[s.id]);
uf.merge(pid, s.id);
if(pid != 0) st.erase(S{a[pid], b[pid], pid});
ans += b[pid] * a[s.id];
b[pid] += b[s.id];
a[pid] += a[s.id];
if(pid != 0) st.insert(S{a[pid], b[pid], pid});
}
rep(i,n) ans += v[i];
cout << ans << endl;
}
int main(){
cin.tie(nullptr);
ios::sync_with_stdio(false);
int t=1;
// cin >> t;
rep(i,t) solve();
}
hint908