Submission #551371

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
551371	2022-04-20 14:10:10	ala2	Street Lamps (APIO19_street_lamps)	C++14	0 / 100	439 ms	3500 KiB

street_lamps

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#include <iostream>
using namespace std;
int n,m;
int a[1001000];
int mx[4001000];
int sum[4004000];
void upd1(int s,int e,int p,int i,int v)
{
    if(i<s||i>e)
        return ;
    if(s==e)
    {
        sum[p]+=v;
        return ;
    }
    int mid=(s+e)/2;
    upd1(s,mid,p*2,i,v);
    upd1(mid+1,e,p*2+1,i,v);
    sum[p]=sum[p*2]+sum[p*2+1];
}
void upd2(int s,int e,int p,int i,int v)
{
    if(i<s||i>e)
        return ;
    if(s==e)
    {
        mx[p]=v;
        return ;
    }
 
 
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