oj.uz

답안 #1033518

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1033518 2024-07-25T01:36:28 Z zaza Pinball (JOI14_pinball) C++14
100 / 100
 172 ms 23548 KB 
#include <bits/stdc++.h>

using namespace std;

struct Seg{
	
	int n;
	
	vector<long long> s;
	
	Seg(int _n = 0): n(_n) {
		s.resize(4 << __lg(n), 2e18);
	}
	
	void upd(int i, long long v) {
		
		int l = 1, r = n, id = 1;
		
		while (l < r) {
			int mid = (l + r) / 2;
			id *= 2;
			
			if (i <= mid) {
				r = mid;
			} else {
				l = mid + 1;
				id++;
			}
			
		}
		
		s[id] = min(s[id], v);
		
		while (id > 1) {
			id /= 2;	
			s[id] = min(s[id * 2], s[id * 2 + 1]);
		}
	}
	
	long long get(int i, int j, int id, int l, int r) {
		
		if (i <= l && r <= j) {
			return s[id];
		}
		
		int mid = (l + r) / 2;
		
		if (i <= mid && mid < j) {
			return min(get(i, j, id * 2, l, mid), get(i, j, id * 2 + 1, mid + 1, r));
		}
		
		if (mid < i) {
			return get(i, j, id * 2 + 1, mid + 1, r);
		}
		
		return get(i, j, id * 2, l, mid);		
	}
	
	long long get(int i, int j) {
		return get(i, j, 1, 1, n);
	}
};

int m, n;

int a[100005], b[100005], c[100005], d[100005];

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> m >> n;
	
	vector<int> val;
	
	val.emplace_back(1);
	val.emplace_back(n);
	
	for (int i = 1; i <= m; ++i) {
		cin >> a[i] >> b[i] >> c[i] >> d[i];
		
		val.emplace_back(a[i]);
		val.emplace_back(b[i]);
		val.emplace_back(c[i]);
	}
	
	sort(val.begin(), val.end());
	
	val.erase(unique(val.begin(), val.end()), val.end());
	
	for (int i = 1; i <= m; ++i) {
		a[i] = lower_bound(val.begin(), val.end(), a[i]) - val.begin() + 1;
		b[i] = lower_bound(val.begin(), val.end(), b[i]) - val.begin() + 1;
		c[i] = lower_bound(val.begin(), val.end(), c[i]) - val.begin() + 1;
		
		//cout << a[i] << ' ' << b[i] << ' ' << c[i] << '\n';
	}
	
	int t = val.size();
	
	Seg ST1(t), ST2(t);
	
	long long ans = 2e18;
	
	ST1.upd(1, 0);
	ST2.upd(t, 0);
	
	for (int i = 1; i <= m; ++i) {
		
		long long k1 = ST1.get(a[i], b[i]);
		long long k2 = ST2.get(a[i], b[i]);
		
		if (max(k1, k2) < 2e18) {
			ans = min(ans, k1 + k2 + d[i]);
		}
		
		if (k1 < 2e18) {
			ST1.upd(c[i], k1 + d[i]);
		}
		
		if (k2 < 2e18) {
			ST2.upd(c[i], k2 + d[i]);
		}
	}
	
	if (ans < 2e18) {
		cout << ans << '\n';
	} else {
		cout << "-1\n";
	}
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 2 ms 536 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 540 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 460 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 2 ms 536 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 604 KB Output is correct
20 Correct 1 ms 540 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 604 KB Output is correct
23 Correct 1 ms 604 KB Output is correct
24 Correct 1 ms 604 KB Output is correct
25 Correct 12 ms 2140 KB Output is correct
26 Correct 34 ms 3972 KB Output is correct
27 Correct 100 ms 9140 KB Output is correct
28 Correct 102 ms 7372 KB Output is correct
29 Correct 66 ms 7784 KB Output is correct
30 Correct 117 ms 7880 KB Output is correct
31 Correct 144 ms 15308 KB Output is correct
32 Correct 141 ms 11300 KB Output is correct
33 Correct 17 ms 3808 KB Output is correct
34 Correct 58 ms 12092 KB Output is correct
35 Correct 85 ms 23416 KB Output is correct
36 Correct 172 ms 23496 KB Output is correct
37 Correct 105 ms 23548 KB Output is correct
38 Correct 123 ms 23492 KB Output is correct