답안 #743083

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
743083	2023-05-17T07:47:00 Z	Joo	Lightning Rod (NOI18_lightningrod)	C++17	80 / 100	2000 ms	116428 KB

lightningrod

#include <bits/stdc++.h>
using namespace std;

const int MXN = 1e7 + 10;

int x[MXN], y[MXN];

int main()
{
    cin.tie(0)->sync_with_stdio(0);
    int n;
    cin >> n;
    stack<int> st;
    for (int i = 1; i <= n; i++)
    {
        cin >> x[i] >> y[i];
        while (!st.empty() and x[i] - x[st.top()] <= y[i] - y[st.top()])
            st.pop();
        if (st.empty() or !(x[i] - x[st.top()] <= y[st.top()] - y[i]))
            st.push(i);
    }
    cout << st.size() << "\n";
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1618 ms	116428 KB	Output is correct
2	Correct	1497 ms	115948 KB	Output is correct
3	Correct	1511 ms	112864 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 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	328 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	332 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	328 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	212 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 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	328 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	212 KB	Output is correct
10	Correct	1 ms	320 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

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	332 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	328 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	212 KB	Output is correct
10	Correct	1 ms	320 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	39 ms	2596 KB	Output is correct
15	Correct	42 ms	2668 KB	Output is correct
16	Correct	37 ms	2892 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1537 ms	104200 KB	Output is correct
2	Correct	1627 ms	106140 KB	Output is correct
3	Correct	1461 ms	103360 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1618 ms	116428 KB	Output is correct
2	Correct	1497 ms	115948 KB	Output is correct
3	Correct	1511 ms	112864 KB	Output is correct
4	Correct	1 ms	332 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	328 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	212 KB	Output is correct
13	Correct	1 ms	320 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	39 ms	2596 KB	Output is correct
18	Correct	42 ms	2668 KB	Output is correct
19	Correct	37 ms	2892 KB	Output is correct
20	Correct	1537 ms	104200 KB	Output is correct
21	Correct	1627 ms	106140 KB	Output is correct
22	Correct	1461 ms	103360 KB	Output is correct
23	Correct	1951 ms	72708 KB	Output is correct
24	Execution timed out	2082 ms	71888 KB	Time limit exceeded
25	Halted	0 ms	0 KB	-