oj.uz

Submission #642342

# Submission time Handle Problem Language Result Execution time Memory
642342 2022-09-19T09:08:33 Z moday_morning XORanges (eJOI19_xoranges) C++17
55 / 100
 1000 ms 4404 KB 
#include <bits/stdc++.h>
#define int long long
using namespace std;

signed main() {
	int n, q; 
	cin >> n >> q;
	vector <int> a(n+3);
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
	}
    while (q--) {
        int type;   
		cin >> type;
        if (type == 1) {
            int i, j; 
			cin >> i >> j;
            a[i] = j;
        }
        else if (type == 2) {
            int l, r; 
			cin >> l >> r;
			int main = 0;
			for (int i = l; i <= r; i++) {
				int x = (i - l + 1) * (r - i + 1);
				if (x % 2 == 1) {
					main ^= a[i];
				}
			}
			cout << main << "\n";
        }
    }
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 212 KB Output is correct
2 Correct 2 ms 212 KB Output is correct
3 Correct 2 ms 212 KB Output is correct
4 Correct 2 ms 212 KB Output is correct
5 Correct 2 ms 212 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 2 ms 212 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 212 KB Output is correct
11 Correct 12 ms 440 KB Output is correct
12 Correct 12 ms 468 KB Output is correct
13 Correct 28 ms 452 KB Output is correct
14 Correct 28 ms 464 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1085 ms 4404 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 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 2 ms 212 KB Output is correct
7 Correct 2 ms 212 KB Output is correct
8 Correct 2 ms 212 KB Output is correct
9 Correct 2 ms 212 KB Output is correct
10 Correct 2 ms 212 KB Output is correct
11 Correct 12 ms 440 KB Output is correct
12 Correct 12 ms 468 KB Output is correct
13 Correct 28 ms 452 KB Output is correct
14 Correct 28 ms 464 KB Output is correct
15 Execution timed out 1085 ms 4404 KB Time limit exceeded
16 Halted 0 ms 0 KB -