Submission #433728

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
433728	2021-06-20 10:03:48	Valaki2	XORanges (eJOI19_xoranges)	C++14	0 / 100	141 ms	10164 KiB

xoranges

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int n, q;
vector<int> numbers;
vector<int> segtree_even;
vector<int> segtree_odd;
int even_size;
int odd_size;
void update_odd(int v, int vl, int vr, int pos, int val) {
    if(vl == vr) {
        segtree_odd[v] = val;
        return;
    }
    int mid = (vl + vr) / 2;
    if(pos <= mid) {
        update_odd(2 * v, vl, mid, pos, val);
    } else {
        update_odd(2 * v + 1, mid + 1, vr, pos, val);
    }
    segtree_odd[v] = (segtree_odd[2 * v] ^ segtree_odd[2 * v + 1]);
}
void update_even(int v, int vl, int vr, int pos, int val) {
    if(vl == vr) {
        segtree_even[v] = val;
 
 
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