Submission #995519

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
995519	2024-06-09 08:51:08	abczz	Construction of Highway (JOI18_construction)	C++17	100 / 100	1036 ms	37432 KiB

construction

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#include <iostream>
#include <vector>
#include <array>
#include <algorithm>
#define ll long long
using namespace std;
vector <ll> adj[100000];
array <ll, 2> edge[100000];
vector <ll> dfn;
vector <array<ll, 2>> V;
array <ll, 2> R[100000];
ll n, a, b, x, l, r, d, t, f, C[100000], D[100000], T[100000], bl[100000][17];
struct SegTree{
  vector <ll> st{vector <ll>(400000, 0)};
  void update(ll id, ll l, ll r, ll q) {
    if (l == r) {
      st[id] = T[dfn[l]];
      return;
    }
    ll mid = (l+r)/2;
    if (q <= mid) update(id*2, l, mid, q);
    else update(id*2+1, mid+1, r, q);
    st[id] = max(st[id*2], st[id*2+1]);
  }
  ll query(ll id, ll l, ll r, ll ql, ll qr) {
    if (qr < l || r < ql) return -1e18;
    else if (ql <= l && r <= qr) return st[id];
    ll mid = (l+r)/2;
 
 
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• Subtask 1: 7 / 7
• Subtask 2: 9 / 9
• Subtask 3: 84 / 84