Submission #981548

#	Time	Username	Problem	Language	Result	Execution time	Memory
981548		Nomio	XORanges (eJOI19_xoranges)	C++17	12 / 100	1065 ms	3272 KiB

xoranges

#include<bits/stdc++.h>
using namespace std;
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n, q;
	cin >> n >> q;
	int a[n + 1];
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	while(q--) {
		int t, l, r;
		cin >> t >> l >> r;
		if(t == 1) {
			a[l] = r; 
		} else {
			int S = a[l];
			for(int i = l + 1; i <= r; i++) {
				S = (S ^ a[i]);
			}
			for(int i = 2; i <= r - l + 1; i++) {
				for(int j = l; j <= r - i + 1; j++) {
					int A = 0;
					for(int k = j; k <= j + i - 1; k++) {
						A = (A ^ a[k]);
					}
					S = (S ^ A);
				}
			}
			cout << S << '\n';
		}
	}
	return 0;
}

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