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Submission #710853

# Submission time Handle Problem Language Result Execution time Memory
710853 2023-03-16T02:20:44 Z awu Lightning Rod (NOI18_lightningrod) C++14
80 / 100
 2000 ms 156752 KB 
#include <bits/extc++.h>
using namespace std;

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")

#define int long long
#define f first
#define s second
#define all(x) x.begin(), x.end()
#define debug(x) do{auto y = x; cout << #x << " = " << y << endl;}while(0)
// #define endl "\n"
#define unordered_map __gnu_pbds::gp_hash_table
using pii = pair<int, int>;

const int inf = 1ll << 60;
const int MOD = 1e9 + 7;

signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n; cin >> n;
  vector<pii> pts(n);
#pragma GCC ivdep
  for(int i = 0; i < n; i++) {
    int x, y; cin >> x >> y;
    pts[i] = {x - y, -(x + y)};
  }
  sort(all(pts));
  int hi = -inf;
  int ans = 0;
  for(auto p : pts) {
    p.s *= -1;
    if(p.s > hi) {
      hi = p.s;
      ans++;
    }
  }
  cout << ans << endl;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1533 ms 152100 KB Output is correct
2 Correct 1514 ms 151876 KB Output is correct
3 Correct 1505 ms 147708 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 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 320 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 0 ms 212 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 380 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 212 KB Output is correct
2 Correct 1 ms 320 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 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 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 380 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 51 ms 3528 KB Output is correct
15 Correct 47 ms 3668 KB Output is correct
16 Correct 41 ms 3544 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1588 ms 156752 KB Output is correct
2 Correct 1621 ms 156540 KB Output is correct
3 Correct 1553 ms 152796 KB Output is correct

Subtask #7
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1533 ms 152100 KB Output is correct
2 Correct 1514 ms 151876 KB Output is correct
3 Correct 1505 ms 147708 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 320 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 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 320 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 380 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 51 ms 3528 KB Output is correct
18 Correct 47 ms 3668 KB Output is correct
19 Correct 41 ms 3544 KB Output is correct
20 Correct 1588 ms 156752 KB Output is correct
21 Correct 1621 ms 156540 KB Output is correct
22 Correct 1553 ms 152796 KB Output is correct
23 Execution timed out 2104 ms 142520 KB Time limit exceeded
24 Halted 0 ms 0 KB -