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Submission #668599

# Submission time Handle Problem Language Result Execution time Memory
668599 2022-12-04T08:30:00 Z 600Mihnea Lightning Rod (NOI18_lightningrod) C++17
80 / 100
 2000 ms 79504 KB 
#include <bits/stdc++.h>


using namespace std;

struct T
{
  int x;
  int y;
};


bool operator < (T& a, T& b)
{
  if (a.y == b.y)
  {
    return a.x < b.x;
  }
  return a.y < b.y;
}

const int N = 10000000 + 7;
int n;
T v[N];
int dp[N];

signed main()
{
#ifdef ONPC
  freopen ("input.txt", "r", stdin);
#endif // ONPC

#ifndef ONPC
  ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#endif // ONPC


  cin >> n;
  for (int i = 1; i <= n; i++)
  {
    int x, y;
    cin >> x >> y;
    v[i] = {-x - y, x - y};
  }
  sort(v + 1, v + n + 1);
  int mn = v[1].x, cnt = 1;
  for (int i = 2; i <= n; i++)
  {
    if (v[i].x < mn)
    {
      mn = v[i].x;
      cnt++;
    }
  }
  cout << cnt << "\n";
  return 0;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1459 ms 77272 KB Output is correct
2 Correct 1468 ms 76944 KB Output is correct
3 Correct 1399 ms 75000 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 50 ms 2792 KB Output is correct
15 Correct 57 ms 2784 KB Output is correct
16 Correct 40 ms 2724 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1489 ms 79504 KB Output is correct
2 Correct 1482 ms 79392 KB Output is correct
3 Correct 1478 ms 77244 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1459 ms 77272 KB Output is correct
2 Correct 1468 ms 76944 KB Output is correct
3 Correct 1399 ms 75000 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 324 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 50 ms 2792 KB Output is correct
18 Correct 57 ms 2784 KB Output is correct
19 Correct 40 ms 2724 KB Output is correct
20 Correct 1489 ms 79504 KB Output is correct
21 Correct 1482 ms 79392 KB Output is correct
22 Correct 1478 ms 77244 KB Output is correct
23 Execution timed out 2061 ms 71388 KB Time limit exceeded
24 Halted 0 ms 0 KB -