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Submission #501074

# Submission time Handle Problem Language Result Execution time Memory
501074 2022-01-02T10:27:32 Z 600Mihnea Pairs (IOI07_pairs) C++17
30 / 100
 19 ms 1596 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

signed main() {
  ios::sync_with_stdio(0); cin.tie(0);


  int B;
  cin >> B;
  ///assert(B == 1 || B == 2 || B == 3);

  if (B == 1) {
    int n, d, _;
    cin >> n >> d >> _;
    vector<int> a(n);
    for (auto &x : a) {
      cin >> x;
    }
    sort(a.begin(), a.end());
    ll sol = 0;
    int C = 0, c = 0;
    for (int i = 0; i < n; i++) {
      int low = a[i] - d, high = a[i] + d;
      while (C < n && a[C] <= high) {
        C++;
      }
      while (c < n && a[c] < low) {
        c++;
      }
      sol += C - c;
    }
    sol -= n;
    sol /= 2;
    cout << sol << "\n";
    exit(0);
  }

  assert(0);

  return 0;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 312 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 956 KB Output is correct
2 Correct 11 ms 1092 KB Output is correct

Subtask #4
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 1472 KB Output is correct
2 Correct 17 ms 1472 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 1452 KB Output is correct
2 Correct 19 ms 1460 KB Output is correct
3 Correct 16 ms 1596 KB Output is correct

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 432 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #7
0 / 7.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 452 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #9
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 456 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 432 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #11
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 448 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #12
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 452 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -