답안 #313297

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
313297	2020-10-15T17:07:42 Z	kaplanbar	Lightning Rod (NOI18_lightningrod)	C++14	80 / 100	2000 ms	233656 KB

lightningrod

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
constexpr int N = 1e7+1;
int 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;
    } 
    vector<bool> v(n, 0);
    int mx = -2e9;
    for(int i = 0; i < n; i++) {
      int val = a[i].first + a[i].second;
      if(mx >= val) {
        v[i] = 1;
      }
      mx = max(mx, val);
    }
    mx = -2e9;
    for(int i = n - 1; i >= 0; i--) {
      int val = a[i].second - a[i].first;
      if(mx >= val) {
        v[i] = 1;
      }
      mx = max(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	1730 ms	190456 KB	Output is correct
2	Correct	1684 ms	189728 KB	Output is correct
3	Correct	1680 ms	184528 KB	Output is correct

Subtask #2

7.0 / 7.0

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

Subtask #3

12.0 / 12.0

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

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 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	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 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	1 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	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	0 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	46 ms	5460 KB	Output is correct
15	Correct	47 ms	5244 KB	Output is correct
16	Correct	45 ms	4600 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1861 ms	176104 KB	Output is correct
2	Correct	1748 ms	175720 KB	Output is correct
3	Correct	1730 ms	171576 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1730 ms	190456 KB	Output is correct
2	Correct	1684 ms	189728 KB	Output is correct
3	Correct	1680 ms	184528 KB	Output is correct
4	Correct	1 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	0 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	0 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	46 ms	5460 KB	Output is correct
18	Correct	47 ms	5244 KB	Output is correct
19	Correct	45 ms	4600 KB	Output is correct
20	Correct	1861 ms	176104 KB	Output is correct
21	Correct	1748 ms	175720 KB	Output is correct
22	Correct	1730 ms	171576 KB	Output is correct
23	Execution timed out	2063 ms	233656 KB	Time limit exceeded
24	Halted	0 ms	0 KB	-