Submission #875911

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
875911	2023-11-20 18:04:00	maxFedorchuk	Exam (eJOI20_exam)	C++14	65 / 100	177 ms	99292 KiB

exam

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#include<bits/stdc++.h>
#define FOR(i, begin, end) for(int i=(begin); i<(end); i++)
using namespace std;
const int N=5e3+10, L=28;
int n, a[N], b[N], st[N][L], dp[N][N];
void build()
{
    FOR(i, 1, L)
    {
        for(int j=1; j+(1<<i)-1<=n; j++)
        {
            st[j][i]=max(st[j][i-1], st[j+(1<<(i-1))][i-1]);
        }
    }
}
int get(int l, int r)
{
    int ln=r-l+1;
    int k=0;
    while((1<<(k+1))<=ln)
    {
        k++;
    }
    return max(st[l][k], st[r-(1<<k)+1][k]);
 
 
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