Submission #571473

#	Time	Username	Problem	Language	Result	Execution time	Memory
571473		vbee	XOR (IZhO12_xor)	C++14	0 / 100	2067 ms	2512 KiB

xor

#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define ii pair<int,int>
#define vii vector<ii>
#define vi vector<int>
#define fi first
#define se second
#define TASK "c"
#define ll long long
#define pll pair<ll, ll>
#define vll vector<ll>
#define vpll vector<pll>
#define pb push_back
#define MASK(i) (1 << (i))
#define BIT(x, i) ((x >> (i)) & 1)
 
using namespace std;

const int oo = 1e9 + 7;
const ll loo = (ll)1e18 + 7; 
const int N = 3e5 + 7;

ll n, x, a[N], prexor[N];
int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);
	// freopen(TASK".inp", "r", stdin);
	// freopen(TASK".out", "w", stdout);
	cin >> n >> x;
	for (int i = 1; i <= n; i++){
		cin >> a[i];
		prexor[i] = prexor[i - 1] ^ a[i];
	}

	for (int k = n; k >= 1; k--){
		for (int i = 1; i <= n - k + 1; i++){
			if ((prexor[i + k - 1] ^ prexor[i - 1]) >= x) {
				return cout << i << " " << k, 0;
			}
		}
	}
	return 0;
}

• Subtask 1: 0 / 100