Submission #498600

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
498600	2021-12-25 16:34:45	beepbeepsheep	Sterilizing Spray (JOI15_sterilizing)	C++17	100 / 100	601 ms	21316 KiB

sterilizing

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#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
typedef pair<ll,ll> ii;
const ll inf=1e15;
const ll maxn=5e5+5;
const ll mod=1e9+7;
struct node{
    ll s,e,m,val;
    node *l,*r;
    node(ll _s,ll _e):s(_s),e(_e),m((_s+_e)>>1),val(0){
        if (s!=e) l=new node(s,m),r=new node(m+1,e);
    }
    void upd(ll p, ll v){
        if (s==e){val=v; return;}
        if (p>m) r->upd(p,v);
        if (p<=m) l->upd(p,v);
        val=l->val+r->val;
    }
    ll query(ll x, ll y){
        if (x<=s && e<=y) return val;
        if (x>m) return r->query(x,y);
        if (y<=m) return l->query(x,y);
        return l->query(x,y)+r->query(x,y);
    }
}*root;
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 75 / 75