Submission #1173553

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1173553	2025-03-25 12:26:04	Warinchai	Two Antennas (JOI19_antennas)	C++20	0 / 100	15 ms	24132 KiB

antennas

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#include<bits/stdc++.h>
#define int long long
using namespace std;
vector<pair<int,int>>add[200005];
vector<pair<int,int>>del[200005];
int inf=1e18+5;
struct node{
    int mx,mn;
    node(int _mx=-inf,int _mn=inf){
        mx=_mx,mn=_mn;
    }
    friend node operator+(node a,node b){
        return node(max(a.mx,b.mx),min(a.mn,b.mn));
    }
};
struct segtree{
    node info[800005];
    void upd(int st,int en,int i,int pos,node val){
        if(st>pos||en<pos)return;
        if(st==en)return info[i]=val,void();
        int m=(st+en)/2;
        upd(st,m,i*2,pos,val);
        upd(m+1,en,i*2+1,pos,val);
        info[i]=info[i*2]+info[i*2+1];
    }
    node fans(int st,int en,int i,int l,int r){
        if(st>r||en<l)return node();
        if(st>=l&&en<=r)return info[i];
        int m=(st+en)/2;
        return fans(st,m,i*2,l,r)+fans(m+1,en,i*2+1,l,r);
 
 
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• Subtask 1: 0 / 2
• Subtask 2: 0 / 11
• Subtask 3: 0 / 22
• Subtask 4: 0 / 65