oj.uz

Submission #447260

# Submission time Handle Problem Language Result Execution time Memory
447260 2021-07-25T15:26:10 Z bigo XORanges (eJOI19_xoranges) C++14
55 / 100
 1000 ms 4076 KB 
#include <bits/stdc++.h>
#include <cmath>
using namespace std;
typedef unsigned long long ll;
int main() {
	int n, q;
	cin >> n >> q;
	vector<int>vec(n);
	for (int i = 0; i < n; i++) {
		cin >> vec[i];
	}
	while (q--) {
		int op;
		cin >> op;
		if (op == 1) {
			int i, j;
			cin >> i >> j;
			vec[i - 1] = j;
		}
		else {
			int l, r;
			cin >> l >> r;
			l--; r--;
			if ((r - l + 1) % 2 == 0)
				cout << 0 << endl;
			else {
				int ans = 0;
				for (int i = l; i <= r; i+=2) {
					ans ^= vec[i];
				}
				cout << ans << endl;
			}
		}
	}
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 204 KB Output is correct
2 Correct 2 ms 204 KB Output is correct
3 Correct 2 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 2 ms 204 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 204 KB Output is correct
7 Correct 2 ms 204 KB Output is correct
8 Correct 2 ms 204 KB Output is correct
9 Correct 2 ms 204 KB Output is correct
10 Correct 2 ms 204 KB Output is correct
11 Correct 14 ms 508 KB Output is correct
12 Correct 12 ms 440 KB Output is correct
13 Correct 20 ms 428 KB Output is correct
14 Correct 21 ms 440 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1089 ms 4076 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 2 ms 204 KB Output is correct
7 Correct 2 ms 204 KB Output is correct
8 Correct 2 ms 204 KB Output is correct
9 Correct 2 ms 204 KB Output is correct
10 Correct 2 ms 204 KB Output is correct
11 Correct 14 ms 508 KB Output is correct
12 Correct 12 ms 440 KB Output is correct
13 Correct 20 ms 428 KB Output is correct
14 Correct 21 ms 440 KB Output is correct
15 Execution timed out 1089 ms 4076 KB Time limit exceeded
16 Halted 0 ms 0 KB -