답안 #710869

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
710869	2023-03-16T03:13:17 Z	awu	Lightning Rod (NOI18_lightningrod)	C++14	100 / 100	1732 ms	209964 KB

lightningrod

#include <bits/extc++.h>
using namespace std;
#define f first
#define s second
#define all(x) x.begin(), x.end()
using pii = pair<int, int>;
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n; cin >> n;
  vector<pii> pts(n);
  for(int i = 0; i < n; i++) {
    int x, y; cin >> x >> y;
    pts[i] = {x, y};
  }
  vector<pii> stac;
  for(auto p : pts) {
#define sb stac.back()
    while(stac.size() && p.s - p.f >= sb.s - sb.f) {
      stac.pop_back();
    }
    if(!stac.size() || p.f + p.s > sb.f + sb.s) {
      stac.push_back(p);
    }
  }
  cout << stac.size() << endl;
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1383 ms	208224 KB	Output is correct
2	Correct	1477 ms	209964 KB	Output is correct
3	Correct	1412 ms	207060 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 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	212 KB	Output is correct

Subtask #3

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 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	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	276 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 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	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	276 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	324 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct

Subtask #5

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 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	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	276 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	324 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	40 ms	1864 KB	Output is correct
15	Correct	37 ms	1880 KB	Output is correct
16	Correct	34 ms	2960 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1461 ms	146004 KB	Output is correct
2	Correct	1498 ms	147044 KB	Output is correct
3	Correct	1463 ms	146648 KB	Output is correct

Subtask #7

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1383 ms	208224 KB	Output is correct
2	Correct	1477 ms	209964 KB	Output is correct
3	Correct	1412 ms	207060 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	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	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	276 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	324 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	40 ms	1864 KB	Output is correct
18	Correct	37 ms	1880 KB	Output is correct
19	Correct	34 ms	2960 KB	Output is correct
20	Correct	1461 ms	146004 KB	Output is correct
21	Correct	1498 ms	147044 KB	Output is correct
22	Correct	1463 ms	146648 KB	Output is correct
23	Correct	1712 ms	79260 KB	Output is correct
24	Correct	1732 ms	183980 KB	Output is correct
25	Correct	1646 ms	173276 KB	Output is correct