Submission #1049678

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1049678	2024-08-09 03:53:03	ymm	Road Construction (JOI21_road_construction)	C++17	38 / 100	10051 ms	181384 KiB

road_construction

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#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;
#pragma GCC optimize("O3,unroll-loops")
 
struct Seg {
  struct Node {
    Node *l, *r, *p;
    int cnt;
    int x;
 
    static Node *nw() {
      static Node pool[(1<<30)/sizeof(Node)];
      static int p = 0;
      return pool + p++;
    }
  };
  vector<Node *> nodes;
  int m;
 
  Node *add(Node *t, ll p, int x, ll b, ll e) {
    Node *ans = Node::nw();
    ans->p = t;
    ans->cnt = (t? t->cnt: 0) + 1;
    ans->x = x;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 0 / 7
• Subtask 4: 0 / 20
• Subtask 5: 27 / 27
• Subtask 6: 0 / 35