Submission #755510

#	Time	Username	Problem	Language	Result	Execution time	Memory
755510		Desh03	XOR (IZhO12_xor)	C++17	0 / 100	2057 ms	1868 KiB

xor

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, x, k = -1, id;
    cin >> n >> x;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    vector<int> pre(n + 1);
    for (int i = 1; i <= n; i++) pre[i] = pre[i - 1] ^ a[i - 1];
    for (int i = 0; i < n; i++)
        for (int j = i + 1; j <= n; j++)
            if ((pre[j] ^ pre[i]) >= x && j - i > k)
                k = j - i, id = i + 1;
    cout << id << ' ' << k;
}

Compilation message (stderr)

xor.cpp: In function 'int main()':
xor.cpp:17:19: warning: 'id' may be used uninitialized in this function [-Wmaybe-uninitialized]
   17 |     cout << id << ' ' << k;
      |                   ^~~

• Subtask 1: 0 / 100