답안 #829032

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
829032	2023-08-18T02:23:33 Z	kebine	Lightning Rod (NOI18_lightningrod)	C++17	80 / 100	2000 ms	174120 KB

lightningrod

#include <bits/stdc++.h>
typedef long long ll;
#define ii pair<ll,ll>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
using namespace std;

vector<ii> seg;
bool comp(ii a, ii b){
    if(a.fi == b.fi) return a.se > b.se;
    return a.fi < b.fi;
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    int n;
    cin >> n;
    seg.resize(n);
    ll x, y;
    for(int i=0; i<n; i++){
        cin >> x >> y;
        seg[i] = mp(x-y, x+y);
    }
    sort(seg.begin(), seg.end(), comp);

    ll r=-1e18, R=-1e18, cnt = 0;
    for(int i=0; i<n; i++){
        // cout<<seg[i].fi<<' '<<seg[i].se<<'\n';
        R = max(r, seg[i].se);
        if(seg[i].se > r){
            ++cnt;
            r = R;
        }
    }
    cout << cnt << '\n';

    return 0;
}

Subtask #1

4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1725 ms	166876 KB	Output is correct
2	Correct	1696 ms	167020 KB	Output is correct
3	Correct	1615 ms	162508 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	0 ms	320 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 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	0 ms	320 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 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	324 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	0 ms	320 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 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	324 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	352 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	0 ms	212 KB	Output is correct
2	Correct	0 ms	320 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	0 ms	212 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	324 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	352 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	46 ms	6660 KB	Output is correct
15	Correct	43 ms	6672 KB	Output is correct
16	Correct	36 ms	5836 KB	Output is correct

Subtask #6

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1742 ms	174120 KB	Output is correct
2	Correct	1765 ms	168460 KB	Output is correct
3	Correct	1756 ms	164632 KB	Output is correct

Subtask #7

0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1725 ms	166876 KB	Output is correct
2	Correct	1696 ms	167020 KB	Output is correct
3	Correct	1615 ms	162508 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	320 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 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	324 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	352 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	46 ms	6660 KB	Output is correct
18	Correct	43 ms	6672 KB	Output is correct
19	Correct	36 ms	5836 KB	Output is correct
20	Correct	1742 ms	174120 KB	Output is correct
21	Correct	1765 ms	168460 KB	Output is correct
22	Correct	1756 ms	164632 KB	Output is correct
23	Execution timed out	2012 ms	174012 KB	Time limit exceeded
24	Halted	0 ms	0 KB	-