Submission #858028

#	Time	Username	Problem	Language	Result	Execution time	Memory
858028		Denkata	Brperm (RMI20_brperm)	C++14	0 / 100	3047 ms	9292 KiB

brperm

#include<bits/stdc++.h>
#include "brperm.h"
using namespace std;
const int maxn = 5e5+3;
char c[maxn];
int st[100],i,j,p,q,N,m,k,l,opposite[maxn],pos[maxn];
void precompute(int l)
{
    st[0] = 1;
    for(i=1;i<=l;i++)
        st[i] = st[i-1]*2;
}
void init (int n,const char s[])
{
    N = n;
    for(i=0;i<n;i++)
        c[i] = s[i];
    l = 1;
    while((1<<l)<=n)
        l++;
    precompute(l);
    k = 1;
    for(i=0;i<n;i++)
    {
        if((1<<k)<=i)
            k++;
        int opp = 0;
        for(j=0;(1<<j)<=i;j++)
        {
            if(((1<<j)&i))
                opp|=(1<<(k-j-1));
        }
        opposite[i] = opp;
        pos[i] = k;
    }

}
int query(int i,int k)
{
    for(j=i;j<i+st[k];j++)
    {
        q = j-i;
        p = opposite[q]*st[k-pos[q]];
        if(c[p+i]!=c[j])
            return 0;
    }
    return 1;
}
/**
int main()
{
    init(8,"axxyxxyb");
    cout<<query(0, 2);
    return 0;
}*/

• Subtask 1: 0 / 13
• Subtask 2: 0 / 37
• Subtask 3: 0 / 17
• Subtask 4: 0 / 33