Submission #882085

#	Time	Username	Problem	Language	Result	Execution time	Memory
882085		presko	XOR (IZhO12_xor)	C++14	0 / 100	2044 ms	3420 KiB

xor

#include<iostream>
#include<bits/stdc++.h>
#define MAXN 250010
using namespace std;
int a[MAXN];
long long pre[MAXN];
int main()
{
    int n,st=0;
    long long x,best=0;
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>x;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
        pre[i]=pre[i-1]^a[i];
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=i;j<=n;j++)
        {
            long long curr=pre[j]^pre[i-1];
            if(curr>=x && j-i+1>best){best=j-i+1;st=i;}
        }
    }
    cout<<st<<" "<<best<<"\n";
}

• Subtask 1: 0 / 100