답안 #828907

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
828907	2023-08-17T20:00:08 Z	NK_	Lightning Rod (NOI18_lightningrod)	C++17	80 / 100	2000 ms	262144 KB

lightningrod

// Success consists of going from failure to failure without loss of enthusiasm
#include <bits/stdc++.h>
 
using namespace std;
 
#define nl '\n'
#define pb push_back 
#define mp make_pair
#define f first
#define s second
#define sz(x) int(x.size())
 
template<class T> using V = vector<T>;
using vi = V<int>;
using ll = long long;
using pi = pair<int, int>;
using vpi = V<pi>;
using vl = V<ll>;
using db = double;

const int INF = 1e9 + 10;

int main() {
	cin.tie(0)->sync_with_stdio(0);

	int N; cin >> N;

	vi L(N), R(N);
	for(int i = 0; i < N; i++) {
		int x, y; cin >> x >> y;
		L[i] = x - y, R[i] = x + y;
	}

	vi ord(N); iota(begin(ord), end(ord), 0);
	sort(begin(ord), end(ord), [&](int x, int y) {
		if (L[x] == L[y]) return R[x] > R[y];
		return L[x] < L[y];		
	});

	int r = -INF, ans = 0;
	for(auto& i : ord) {
		// cout << i << " " << L[i] << " " << R[i] << endl;
		if (r < R[i]) ans++, r = R[i];
	}

	cout << ans << nl;

	exit(0-0);
}					

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1385 ms	226660 KB	Output is correct
2	Correct	1364 ms	226012 KB	Output is correct
3	Correct	1343 ms	219944 KB	Output is correct

Subtask #2

7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	240 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	316 KB	Output is correct

Subtask #3

12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	240 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	316 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct

Subtask #4

21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	240 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	316 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	328 KB	Output is correct

Subtask #5

26.0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	320 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	240 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	316 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	328 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	328 KB	Output is correct
14	Correct	44 ms	5988 KB	Output is correct
15	Correct	39 ms	5924 KB	Output is correct
16	Correct	32 ms	5204 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1449 ms	213476 KB	Output is correct
2	Correct	1450 ms	213272 KB	Output is correct
3	Correct	1425 ms	208108 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1385 ms	226660 KB	Output is correct
2	Correct	1364 ms	226012 KB	Output is correct
3	Correct	1343 ms	219944 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	320 KB	Output is correct
7	Correct	1 ms	320 KB	Output is correct
8	Correct	1 ms	240 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	316 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	328 KB	Output is correct
17	Correct	44 ms	5988 KB	Output is correct
18	Correct	39 ms	5924 KB	Output is correct
19	Correct	32 ms	5204 KB	Output is correct
20	Correct	1449 ms	213476 KB	Output is correct
21	Correct	1450 ms	213272 KB	Output is correct
22	Correct	1425 ms	208108 KB	Output is correct
23	Execution timed out	2084 ms	262144 KB	Time limit exceeded
24	Halted	0 ms	0 KB	-