Submission #1091679

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1091679	2024-09-21 19:28:39	ASN49K	Safety (NOI18_safety)	C++14	100 / 100	291 ms	21076 KiB

safety

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#include <bits/stdc++.h>
using namespace std;
using i64=long long;
#define UNUSED -1
#define all(x) x.begin(),x.end()
#define pb push_back
const int mod=1e9+7,inf=1e9+1;
const int N=2e5;
mt19937 rng(69);
struct node
{
    i64 key;
    int pri,cnt;
    i64 lazy;
    node* l,* r;
    node(int key)
    {
        this->key=key;
        pri=rng();
        cnt=1;
        lazy=0;
        l=r=nullptr;
    }
    void add(int x)
    {
        key+=x;
        lazy+=x;
    }
    void push_down()
 
 
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