Submission #1167353

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1167353	2025-03-16 03:18:50	epicci23	Safety (NOI18_safety)	C++20	100 / 100	628 ms	25428 KiB

safety

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#include "bits/stdc++.h"
#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
struct Node{
  Node* lc;
  Node* rc;
  int pri,sub,val,lazy;
  Node(int x){
    lc = rc = NULL;
    sub = 1;
    lazy = 0;
    val = x;
    pri = rng();
  }
};
inline int get_sub(Node *rt){
  if(!rt) return 0;
  return rt -> sub;
}
inline void recalc(Node* rt){
  if(!rt) return;
  int u = rt -> lazy;
 
 
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