Submission #1212106

#	Time	Username	Problem	Language	Result	Execution time	Memory
1212106		saad1e7	XORanges (eJOI19_xoranges)	C++20	0 / 100	1095 ms	2220 KiB

xoranges

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

int main() {
	ll n, q;
	cin >> n >> q;
	vector<ll> a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}
	while (q--) {
		ll ty;
		cin >> ty;
		if (ty == 1) {
			ll idx, val;
			cin >> idx >> val;
			a[idx - 1] = val;
		} else {
			ll l, r;
			cin >> l >> r;
			ll sol = 0;
			for (int i = l - 1; i <= r - 1; i++) {
				sol ^= a[i];
			}
			cout << sol << endl;
		}
	}
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 18
• Subtask 3: 0 / 25
• Subtask 4: 0 / 20
• Subtask 5: 0 / 25