답안 #925475

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
925475	2024-02-11T18:35:50 Z	jcelin	Advertisement 2 (JOI23_ho_t2)	C++14	100 / 100	403 ms	22960 KB

Main

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

typedef pair<int,int> ii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<ll> vll;
typedef vector<pll> vpll;

#define PB push_back
#define PF push_front
#define PPB pop_back
#define PPF pop_front
#define X first
#define Y second
#define MP make_pair
#define all(x) (x).begin(), (x).end()

const int mod = 1e9 + 7; //998244353;
const int inf = 1e9 + 7;
const ll INF = 1e18 + 7;
const int logo = 20;
const int MAXN = 1e6 + 7;
const int off = 1 << logo;
const int trsz = off << 1;
const int dx[] = {1, -1, 0, 0};
const int dy[] = {0, 0, -1, 1};

vi vals;
vii p;

struct tournament{
	int seg[trsz];
	
	tournament(){
		fill(seg, seg + trsz, -1);
	}
	
	void update(int x, int vl){
		x += off;
		seg[x] = max(seg[x], vl);
		for(x /= 2; x; x /= 2) seg[x] = max(seg[x * 2], seg[x * 2 + 1]);
	}
	
	int query(int l, int r){
		int ret = -1;
		for(l += off, r += off; l < r; l >>= 1, r >>= 1){
			if(l & 1) ret = max(ret, seg[l++]);
			if(r & 1) ret = max(ret, seg[--r]);
		}
		return ret;
	}
}t;

bool cmp(ii &a, ii &b){
	return a.Y - a.X > b.Y - b.X;
}

void solve(){
	int n;
	cin >> n;
	for(int i=1; i<=n; i++){
		int x, e;
		cin >> x >> e;
		vals.PB(x - e);
		vals.PB(x + e);
		p.PB({x - e, x + e});
	}
	sort(all(vals));
	vals.erase(unique(all(vals)), vals.end());
	for(auto &x : p){
		x.X = lower_bound(all(vals), x.X) - vals.begin() + 1;
		x.Y = lower_bound(all(vals), x.Y) - vals.begin() + 1;
	}
	sort(all(p), cmp);
	
	int ans = 0;
	for(auto &x : p){
		if(t.query(0, x.X + 1) >= x.Y) continue;
		t.update(x.X, x.Y);
		ans++;
	}
	cout << ans << "\n";
}

int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int tt = 1;
	//cin >> tt;
	while(tt--) solve();
	return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	8536 KB	Output is correct
2	Correct	91 ms	12224 KB	Output is correct
3	Correct	120 ms	14012 KB	Output is correct
4	Correct	231 ms	20928 KB	Output is correct
5	Correct	83 ms	20400 KB	Output is correct
6	Correct	387 ms	22960 KB	Output is correct
7	Correct	356 ms	21672 KB	Output is correct
8	Correct	243 ms	21656 KB	Output is correct
9	Correct	114 ms	21664 KB	Output is correct

Subtask #2
23.0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	8540 KB	Output is correct
2	Correct	2 ms	8660 KB	Output is correct
3	Correct	2 ms	8540 KB	Output is correct
4	Correct	2 ms	8540 KB	Output is correct
5	Correct	2 ms	8540 KB	Output is correct
6	Correct	2 ms	8540 KB	Output is correct
7	Correct	2 ms	8540 KB	Output is correct
8	Correct	2 ms	8548 KB	Output is correct
9	Correct	2 ms	8540 KB	Output is correct
10	Correct	2 ms	8540 KB	Output is correct
11	Correct	2 ms	8540 KB	Output is correct
12	Correct	2 ms	8536 KB	Output is correct
13	Correct	2 ms	8540 KB	Output is correct
14	Correct	2 ms	8540 KB	Output is correct
15	Correct	2 ms	8544 KB	Output is correct
16	Correct	2 ms	8540 KB	Output is correct
17	Correct	2 ms	8540 KB	Output is correct
18	Correct	2 ms	8540 KB	Output is correct

Subtask #3
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	8540 KB	Output is correct
2	Correct	2 ms	8660 KB	Output is correct
3	Correct	2 ms	8540 KB	Output is correct
4	Correct	2 ms	8540 KB	Output is correct
5	Correct	2 ms	8540 KB	Output is correct
6	Correct	2 ms	8540 KB	Output is correct
7	Correct	2 ms	8540 KB	Output is correct
8	Correct	2 ms	8548 KB	Output is correct
9	Correct	2 ms	8540 KB	Output is correct
10	Correct	2 ms	8540 KB	Output is correct
11	Correct	2 ms	8540 KB	Output is correct
12	Correct	2 ms	8536 KB	Output is correct
13	Correct	2 ms	8540 KB	Output is correct
14	Correct	2 ms	8540 KB	Output is correct
15	Correct	2 ms	8544 KB	Output is correct
16	Correct	2 ms	8540 KB	Output is correct
17	Correct	2 ms	8540 KB	Output is correct
18	Correct	2 ms	8540 KB	Output is correct
19	Correct	2 ms	8540 KB	Output is correct
20	Correct	2 ms	8540 KB	Output is correct
21	Correct	2 ms	8536 KB	Output is correct
22	Correct	3 ms	8536 KB	Output is correct
23	Correct	3 ms	8536 KB	Output is correct
24	Correct	3 ms	8540 KB	Output is correct
25	Correct	2 ms	8540 KB	Output is correct
26	Correct	2 ms	8536 KB	Output is correct

Subtask #4
31.0 / 31.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	8536 KB	Output is correct
2	Correct	91 ms	12224 KB	Output is correct
3	Correct	120 ms	14012 KB	Output is correct
4	Correct	231 ms	20928 KB	Output is correct
5	Correct	83 ms	20400 KB	Output is correct
6	Correct	387 ms	22960 KB	Output is correct
7	Correct	356 ms	21672 KB	Output is correct
8	Correct	243 ms	21656 KB	Output is correct
9	Correct	114 ms	21664 KB	Output is correct
10	Correct	2 ms	8540 KB	Output is correct
11	Correct	2 ms	8660 KB	Output is correct
12	Correct	2 ms	8540 KB	Output is correct
13	Correct	2 ms	8540 KB	Output is correct
14	Correct	2 ms	8540 KB	Output is correct
15	Correct	2 ms	8540 KB	Output is correct
16	Correct	2 ms	8540 KB	Output is correct
17	Correct	2 ms	8548 KB	Output is correct
18	Correct	2 ms	8540 KB	Output is correct
19	Correct	2 ms	8540 KB	Output is correct
20	Correct	2 ms	8540 KB	Output is correct
21	Correct	2 ms	8536 KB	Output is correct
22	Correct	2 ms	8540 KB	Output is correct
23	Correct	2 ms	8540 KB	Output is correct
24	Correct	2 ms	8544 KB	Output is correct
25	Correct	2 ms	8540 KB	Output is correct
26	Correct	2 ms	8540 KB	Output is correct
27	Correct	2 ms	8540 KB	Output is correct
28	Correct	2 ms	8540 KB	Output is correct
29	Correct	2 ms	8540 KB	Output is correct
30	Correct	2 ms	8536 KB	Output is correct
31	Correct	3 ms	8536 KB	Output is correct
32	Correct	3 ms	8536 KB	Output is correct
33	Correct	3 ms	8540 KB	Output is correct
34	Correct	2 ms	8540 KB	Output is correct
35	Correct	2 ms	8536 KB	Output is correct
36	Correct	253 ms	20144 KB	Output is correct
37	Correct	336 ms	21936 KB	Output is correct
38	Correct	400 ms	22156 KB	Output is correct
39	Correct	376 ms	21676 KB	Output is correct
40	Correct	403 ms	21672 KB	Output is correct
41	Correct	388 ms	21576 KB	Output is correct
42	Correct	335 ms	21812 KB	Output is correct
43	Correct	315 ms	21168 KB	Output is correct
44	Correct	300 ms	21568 KB	Output is correct
45	Correct	345 ms	20256 KB	Output is correct

답안 #925475

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 23.0 / 23.0

Subtask #3 36.0 / 36.0

Subtask #4 31.0 / 31.0

Subtask #1
10.0 / 10.0

Subtask #2
23.0 / 23.0

Subtask #3
36.0 / 36.0

Subtask #4
31.0 / 31.0