oj.uz

답안 #738192

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
738192 2023-05-08T08:50:10 Z 406 Pinball (JOI14_pinball) C++17
100 / 100
 343 ms 42700 KB 
#include "bits/stdc++.h"
#define int long long
using namespace std;
const long long INF = 1ll << 60;
const int N = 5e5 + 15;
vector<int> X;
int A[N], B[N], C[N], D[N], m, n;

struct seg {
	int mn[4 * N];
	void init() {
		memset(mn, 0x3f3f3f, sizeof mn);
	}
	void update(int v, int l, int r, int ind, int I) {
		if (l + 1 == r) return void(mn[v] = min(mn[v], I));
		int m = l + r >> 1;
		if (ind < m)
			update(v << 1, l, m, ind, I);
		else 
			update(v << 1 | 1, m, r, ind, I);
		mn[v] = min(mn[v << 1], mn[v << 1 | 1]);
	}
	int get(int v, int l, int r, int L, int R) {
		if (r <= L || R <= l) return INF;
		if (L <= l && r <= R) return mn[v];
		int m = l + r >> 1;
		return min(get(v << 1, l, m, L, R), get(v << 1 | 1, m, r, L, R));
	}
	inline int g(int L, int R) {
		return get(1, 0, X.size(), L, R);
	}
	inline void u(int ind, int I) {
		update(1, 0, X.size(), ind, I);
	}	
} S[2];

void solve() {
	int ans = INF;
	S[0].u(0, 0);
	S[1].u(X.size() - 1, 0);

	for (int i = 0; i < m; i++) {
		//cout << A[i] << ' ' << B[i] << endl;
		ans = min(ans, S[0].g(A[i], B[i] + 1) + S[1].g(A[i], B[i] + 1) + D[i]);
		S[0].u(C[i], S[0].g(A[i], C[i] + 1) + D[i]);
		S[1].u(C[i], S[1].g(C[i], B[i] + 1) + D[i]);
	}
	cout << (ans == INF ? -1 : ans) << '\n';
}

signed main() {
	ios::sync_with_stdio(0), cin.tie(0);
	cin >> m >> n;
	X.push_back(1);
	X.push_back(n);
	for (int i = 0; i < m; i++) {
		cin >> A[i] >> B[i] >> C[i] >> D[i];
		X.push_back(A[i]), X.push_back(B[i]), X.push_back(C[i]), X.push_back(min(n, B[i] + 1)), X.push_back(max(1ll, A[i] - 1));
	}
	sort(X.begin(), X.end());
	X.resize(unique(X.begin(), X.end()) - X.begin());

	for (int i = 0; i < m; i++) {
		A[i] = lower_bound(X.begin(), X.end(), A[i]) - X.begin();
		B[i] = lower_bound(X.begin(), X.end(), B[i]) - X.begin();
		C[i] = lower_bound(X.begin(), X.end(), C[i]) - X.begin();
	}
	S[0].init(), S[1].init();

	solve();

	return 0;
}

Compilation message

pinball.cpp: In member function 'void seg::update(long long int, long long int, long long int, long long int, long long int)':
pinball.cpp:16:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   16 |   int m = l + r >> 1;
      |           ~~^~~
pinball.cpp: In member function 'long long int seg::get(long long int, long long int, long long int, long long int, long long int)':
pinball.cpp:26:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   26 |   int m = l + r >> 1;
      |           ~~^~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31644 KB Output is correct
2 Correct 13 ms 31568 KB Output is correct
3 Correct 13 ms 31652 KB Output is correct
4 Correct 14 ms 31628 KB Output is correct
5 Correct 13 ms 31552 KB Output is correct
6 Correct 18 ms 31688 KB Output is correct
7 Correct 15 ms 31568 KB Output is correct
8 Correct 14 ms 31668 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31644 KB Output is correct
2 Correct 13 ms 31568 KB Output is correct
3 Correct 13 ms 31652 KB Output is correct
4 Correct 14 ms 31628 KB Output is correct
5 Correct 13 ms 31552 KB Output is correct
6 Correct 18 ms 31688 KB Output is correct
7 Correct 15 ms 31568 KB Output is correct
8 Correct 14 ms 31668 KB Output is correct
9 Correct 14 ms 31700 KB Output is correct
10 Correct 15 ms 31700 KB Output is correct
11 Correct 17 ms 31700 KB Output is correct
12 Correct 14 ms 31700 KB Output is correct
13 Correct 15 ms 31612 KB Output is correct
14 Correct 15 ms 31700 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31644 KB Output is correct
2 Correct 13 ms 31568 KB Output is correct
3 Correct 13 ms 31652 KB Output is correct
4 Correct 14 ms 31628 KB Output is correct
5 Correct 13 ms 31552 KB Output is correct
6 Correct 18 ms 31688 KB Output is correct
7 Correct 15 ms 31568 KB Output is correct
8 Correct 14 ms 31668 KB Output is correct
9 Correct 14 ms 31700 KB Output is correct
10 Correct 15 ms 31700 KB Output is correct
11 Correct 17 ms 31700 KB Output is correct
12 Correct 14 ms 31700 KB Output is correct
13 Correct 15 ms 31612 KB Output is correct
14 Correct 15 ms 31700 KB Output is correct
15 Correct 13 ms 31572 KB Output is correct
16 Correct 14 ms 31676 KB Output is correct
17 Correct 16 ms 31808 KB Output is correct
18 Correct 17 ms 31828 KB Output is correct
19 Correct 17 ms 31736 KB Output is correct
20 Correct 16 ms 31828 KB Output is correct
21 Correct 14 ms 31708 KB Output is correct
22 Correct 15 ms 31796 KB Output is correct
23 Correct 15 ms 31828 KB Output is correct
24 Correct 16 ms 31828 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 31644 KB Output is correct
2 Correct 13 ms 31568 KB Output is correct
3 Correct 13 ms 31652 KB Output is correct
4 Correct 14 ms 31628 KB Output is correct
5 Correct 13 ms 31552 KB Output is correct
6 Correct 18 ms 31688 KB Output is correct
7 Correct 15 ms 31568 KB Output is correct
8 Correct 14 ms 31668 KB Output is correct
9 Correct 14 ms 31700 KB Output is correct
10 Correct 15 ms 31700 KB Output is correct
11 Correct 17 ms 31700 KB Output is correct
12 Correct 14 ms 31700 KB Output is correct
13 Correct 15 ms 31612 KB Output is correct
14 Correct 15 ms 31700 KB Output is correct
15 Correct 13 ms 31572 KB Output is correct
16 Correct 14 ms 31676 KB Output is correct
17 Correct 16 ms 31808 KB Output is correct
18 Correct 17 ms 31828 KB Output is correct
19 Correct 17 ms 31736 KB Output is correct
20 Correct 16 ms 31828 KB Output is correct
21 Correct 14 ms 31708 KB Output is correct
22 Correct 15 ms 31796 KB Output is correct
23 Correct 15 ms 31828 KB Output is correct
24 Correct 16 ms 31828 KB Output is correct
25 Correct 35 ms 32720 KB Output is correct
26 Correct 86 ms 34372 KB Output is correct
27 Correct 222 ms 39220 KB Output is correct
28 Correct 173 ms 42564 KB Output is correct
29 Correct 171 ms 37244 KB Output is correct
30 Correct 227 ms 42692 KB Output is correct
31 Correct 335 ms 42668 KB Output is correct
32 Correct 343 ms 42684 KB Output is correct
33 Correct 51 ms 33804 KB Output is correct
34 Correct 155 ms 37168 KB Output is correct
35 Correct 186 ms 42660 KB Output is correct
36 Correct 326 ms 42656 KB Output is correct
37 Correct 297 ms 42700 KB Output is correct
38 Correct 288 ms 42592 KB Output is correct