답안 #785524

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
785524	2023-07-17T09:59:31 Z	12345678	Lightning Rod (NOI18_lightningrod)	C++17	100 / 100	1501 ms	191652 KB

lightningrod

#include <bits/stdc++.h>

using namespace std;

int n, x, y, h;
stack<pair<int, int>> s;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n;
    for (int i=1; i<=n; i++)
    {
        cin>>x>>y;
        if (s.empty())
        {
            s.push({x, y});
            continue;
        }
        if (s.top().second-y>=x-s.top().first) continue;
        while (!s.empty()&&y-s.top().second>=x-s.top().first) s.pop();
        s.push({x, y});
    }
    cout<<s.size();
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1206 ms	174440 KB	Output is correct
2	Correct	1266 ms	191652 KB	Output is correct
3	Correct	1206 ms	186528 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	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 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	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 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	316 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	316 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	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 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	316 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	316 KB	Output is correct
11	Correct	1 ms	368 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	360 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	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 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	316 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	316 KB	Output is correct
11	Correct	1 ms	368 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	360 KB	Output is correct
14	Correct	30 ms	3880 KB	Output is correct
15	Correct	43 ms	3620 KB	Output is correct
16	Correct	30 ms	3660 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1266 ms	147424 KB	Output is correct
2	Correct	1258 ms	147316 KB	Output is correct
3	Correct	1228 ms	143852 KB	Output is correct

Subtask #7

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1206 ms	174440 KB	Output is correct
2	Correct	1266 ms	191652 KB	Output is correct
3	Correct	1206 ms	186528 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 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	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	316 KB	Output is correct
14	Correct	1 ms	368 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	360 KB	Output is correct
17	Correct	30 ms	3880 KB	Output is correct
18	Correct	43 ms	3620 KB	Output is correct
19	Correct	30 ms	3660 KB	Output is correct
20	Correct	1266 ms	147424 KB	Output is correct
21	Correct	1258 ms	147316 KB	Output is correct
22	Correct	1228 ms	143852 KB	Output is correct
23	Correct	1493 ms	175304 KB	Output is correct
24	Correct	1501 ms	156484 KB	Output is correct
25	Correct	1458 ms	139808 KB	Output is correct