Submission #774824

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
774824	2023-07-06 03:50:49	vjudge12	Addk (eJOI21_addk)	C++17	100 / 100	1214 ms	4904 KiB

Main

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#include<bits/stdc++.h>
using namespace std;
long long a[100001];
long long st[400001];
void build(long long no,long long l,long long r)
{
    if(l==r)
    {
        st[no]=a[l];
        return;
    }
    long long mid=(l+r)/2;
    build(no*2,l,mid);
    build(no*2+1,mid+1,r);
    st[no]=st[no*2+1]+st[no*2];
    return;
}
void pointupd(long long no,long long l,long long r,long long ep,long long x)
{
    if(l>ep||r<ep)
        return;
    if(l==r)
    {
        st[no]=x;
        return;
    }
    long long mid=(l+r)/2;
    pointupd(no*2,l,mid,ep,x);
    pointupd(no*2+1,mid+1,r,ep,x);
 
 
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• Subtask 1: 36 / 36
• Subtask 2: 56 / 56
• Subtask 3: 8 / 8