답안 #313301

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
313301	2020-10-15T17:11:20 Z	kaplanbar	Lightning Rod (NOI18_lightningrod)	C++17	80 / 100	2000 ms	88112 KB

lightningrod

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
constexpr int N = 1e7+1;
int n;
bool v[N];
pair<int,int> a[N];
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n;
    for(int i = 0; i < n; i++) {
      cin >> a[i].first >> a[i].second;
    }
    int mx = -2000000000;
    for(int i = 0; i < n; i++) {
      int val = a[i].first + a[i].second;
      if(mx >= val) {
        v[i] = 1;
      }
      else {
        mx = val;
      }
    }
    mx = -2000000000;
    for(int i = n - 1; i >= 0; i--) {
      int val = a[i].second - a[i].first;
      if(mx >= val) {
        v[i] = 1;
      }
      else {
        mx = val;
      }
    }
    int ans = 0;
    for(int i = 0; i < n; i++) ans += 1^v[i];
    cout << ans;
    return 0;
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1658 ms	76280 KB	Output is correct
2	Correct	1757 ms	76016 KB	Output is correct
3	Correct	1597 ms	73976 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct

Subtask #3

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct

Subtask #5

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	42 ms	1908 KB	Output is correct
15	Correct	44 ms	2040 KB	Output is correct
16	Correct	40 ms	1912 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1709 ms	88112 KB	Output is correct
2	Correct	1683 ms	87928 KB	Output is correct
3	Correct	1638 ms	86008 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1658 ms	76280 KB	Output is correct
2	Correct	1757 ms	76016 KB	Output is correct
3	Correct	1597 ms	73976 KB	Output is correct
4	Correct	0 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	0 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	1 ms	384 KB	Output is correct
17	Correct	42 ms	1908 KB	Output is correct
18	Correct	44 ms	2040 KB	Output is correct
19	Correct	40 ms	1912 KB	Output is correct
20	Correct	1709 ms	88112 KB	Output is correct
21	Correct	1683 ms	87928 KB	Output is correct
22	Correct	1638 ms	86008 KB	Output is correct
23	Execution timed out	2021 ms	80236 KB	Time limit exceeded
24	Halted	0 ms	0 KB	-