답안 #313306

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
313306	2020-10-15T17:14:34 Z	kaplanbar	Lightning Rod (NOI18_lightningrod)	C++14	80 / 100	2000 ms	79864 KB

lightningrod

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

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1703 ms	77688 KB	Output is correct
2	Correct	1708 ms	77304 KB	Output is correct
3	Correct	1665 ms	75384 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	0 ms	384 KB	Output is correct
6	Correct	1 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	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	0 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	0 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	0 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	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	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	0 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	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	43 ms	2048 KB	Output is correct
15	Correct	45 ms	2048 KB	Output is correct
16	Correct	41 ms	1920 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1731 ms	79864 KB	Output is correct
2	Correct	1752 ms	79816 KB	Output is correct
3	Correct	1685 ms	77816 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1703 ms	77688 KB	Output is correct
2	Correct	1708 ms	77304 KB	Output is correct
3	Correct	1665 ms	75384 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	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	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	43 ms	2048 KB	Output is correct
18	Correct	45 ms	2048 KB	Output is correct
19	Correct	41 ms	1920 KB	Output is correct
20	Correct	1731 ms	79864 KB	Output is correct
21	Correct	1752 ms	79816 KB	Output is correct
22	Correct	1685 ms	77816 KB	Output is correct
23	Execution timed out	2090 ms	72568 KB	Time limit exceeded
24	Halted	0 ms	0 KB	-