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Submission #424998

# Submission time Handle Problem Language Result Execution time Memory
424998 2021-06-12T12:19:08 Z MilosMilutinovic XORanges (eJOI19_xoranges) C++14
55 / 100
 1000 ms 5176 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, q;
  cin >> n >> q;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  while (q--) {
    int foo;
    cin >> foo;
    if (foo == 1) {
      int pos, x;
      cin >> pos >> x;
      --pos;
      a[pos] = x;
    } else {
      int l, r;
      cin >> l >> r;
      --l, --r;
      if (l % 2 != r % 2) {
        cout << 0 << '\n';
        continue;
      }
      int ans = 0;
      for (int i = l; i <= r; i += 2) {
        ans ^= a[i];
      }
      cout << ans << '\n';
    }
  }
  return 0;
}

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 2 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 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 332 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 2 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 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 4 ms 460 KB Output is correct
12 Correct 4 ms 460 KB Output is correct
13 Correct 8 ms 468 KB Output is correct
14 Correct 7 ms 452 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1083 ms 5176 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 2 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 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 4 ms 460 KB Output is correct
12 Correct 4 ms 460 KB Output is correct
13 Correct 8 ms 468 KB Output is correct
14 Correct 7 ms 452 KB Output is correct
15 Execution timed out 1083 ms 5176 KB Time limit exceeded
16 Halted 0 ms 0 KB -