oj.uz

Submission #838180

# Submission time Handle Problem Language Result Execution time Memory
838180 2023-08-26T10:02:54 Z BlockOG XORanges (eJOI19_xoranges) C++14
0 / 100
 897 ms 3268 KB 
#include <iostream>

using namespace std;

unsigned int o[200008];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    int n, q; cin >> n >> q;
    for (int i = 0; i < n; i++) cin >> o[i];

    for (int it = 0; it < q; it++) {
        int code; cin >> code;
        if (code == 1) {
            int i; cin >> i >> o[--i];
        } else {
            int l, u; cin >> l >> u;
            if (!((u - l + 1) & 1)) {
                cout << 0 << endl;
                continue;
            }

            unsigned int res1 = 0, res2 = 0, res3 = 0, res4 = 0;
            for (int i = l - 1; i < u; i += 8) res1 ^= o[i], res2 ^= o[i + 2], res3 ^= o[i + 4], res4 ^= o[i + 6];
            cout << ((res1 ^ res2) ^ (res3 ^ res4)) << endl;
        }
    }
}

Subtask #1
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 897 ms 3268 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -