oj.uz

Submission #439125

# Submission time Handle Problem Language Result Execution time Memory
439125 2021-06-29T09:03:49 Z elazarkoren XORanges (eJOI19_xoranges) C++17
0 / 100
 1000 ms 972 KB 
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
typedef vector<int> vi;
typedef vector<vi> vvi;

int main() {
    int n, q;
    cin >> n >> q;
    vi a(n + 1);
    for (int i = 1; i <= n; i++) cin >> a[i];
    while (q--) {
        int type;
        cin >> type;
        if (type == 1) {
            int i, x;
            cin >> i >> x;
            a[i] = x;
            continue;
        }
        int l, r;
        cin >> l >> r;
        if ((r - l + 1) & 1) {
            cout << 0 << '\n';
            continue;
        }
        int ans = 0;
        for (int i = 1; i <= r - l + 1; i++) {
            for (int j = l; j + i - 1 <= r; j++) {
                for (int k = j; k < j + i; k++) {
                    ans ^= a[k];
                }
            }
        }
        cout << ans << '\n';
    }
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 335 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1081 ms 972 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -