oj.uz

답안 #310801

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
310801 2020-10-08T02:22:48 Z ttnhuy313 Pinball (JOI14_pinball) C++14
51 / 100
 1000 ms 18932 KB 
#include <bits/stdc++.h>

using namespace std;
#define int long long

const int N = 1e5 + 5, oo = 1e18;
int n, a[N], b[N], c[N], d[N], dp1[N], dp2[N], tot, bound;
map <int, int> inv;
set <int> val;

struct SegmentTree {
	int n;
	vector <int> st;
	SegmentTree() {}
	SegmentTree(int _n) {
		this -> n = _n;
		st.assign(4 * n + 5, oo);
	}
	int Left(int x) {return (x << 1);}
	int Right(int x) {return (x << 1) + 1;}
	void update(int id, int L, int R, int i, int val) {
		if (L > i || R < i) return;
		if (L == R) {
			st[id] = min(st[id], val);
			return;
		}
		int mid = (L + R) >> 1;
		update(Left(id), L, mid, i, val);
		update(Right(id), mid + 1, R, i, val);
		st[id] = min(st[Left(id)], st[Right(id)]);
	}
	int get(int id, int L, int R, int i, int j) {
		if (L > j || R < i) return oo;
		if (L >= i && R <= j) {
			return st[id];
		}
		int mid = (L + R) >> 1;
		return min(get(Left(id), L, mid, i, j), get(Right(id), mid + 1, R, i, j));
	}
	void update(int i, int val) {
		update(1, 1, n, i, val);
	}
	int get(int i, int j) {
		return get(1, 1, n, i, j);
	}
};

void solve1() {
	SegmentTree solver = SegmentTree(tot);
	for (int i = 1; i <= n; ++i)
		dp1[i] = oo;
	for (int i = 1; i <= n; ++i) {
		if (a[i] == 1) {
			solver.update(inv[c[i]], d[i]);
			dp1[i] = d[i];
			continue;
		}
		int u = *(val.lower_bound(a[i]));
		auto it = val.upper_bound(b[i]);
		it--;
		int v = *it;
		dp1[i] = min(dp1[i], solver.get(inv[u], inv[v]) + d[i]);
		solver.update(inv[c[i]], solver.get(inv[u], inv[v]) + d[i]);
	}
}

void solve2() {
	SegmentTree solver = SegmentTree(tot);
	for (int i = 1; i <= n; ++i)
		dp2[i] = oo;
	for (int i = 1; i <= n; ++i) {
		if (b[i] == bound) {
			solver.update(inv[c[i]], d[i]);
			dp2[i] = d[i];
			continue;
		}
		int u = *(val.lower_bound(a[i]));
		auto it = val.upper_bound(b[i]);
		it--;
		int v = *it;
		dp2[i] = min(dp2[i], solver.get(inv[u], inv[v]) + d[i]);
		solver.update(inv[c[i]], solver.get(inv[u], inv[v]) + d[i]);
	}
}

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

	cin >> n >> bound;
	val.clear();
	for (int i = 1; i <= n; ++i) {
		cin >> a[i] >> b[i] >> c[i] >> d[i];
		val.insert(c[i]);
	}
	for (int v : val) {
		inv[v] = ++tot;
	}
	solve1();
	solve2();
	int res = oo;
	for (int i = 1; i <= n; ++i)
		res = min(res, dp1[i] + dp2[i] - d[i]);
	if (res == oo) res = -1;

	cout << res << endl;

	return 0;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 2 ms 556 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 2 ms 556 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 6 ms 640 KB Output is correct
20 Correct 4 ms 640 KB Output is correct
21 Correct 2 ms 512 KB Output is correct
22 Correct 4 ms 640 KB Output is correct
23 Correct 3 ms 640 KB Output is correct
24 Correct 4 ms 640 KB Output is correct

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 256 KB Output is correct
11 Correct 1 ms 512 KB Output is correct
12 Correct 2 ms 556 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 4 ms 512 KB Output is correct
18 Correct 2 ms 512 KB Output is correct
19 Correct 6 ms 640 KB Output is correct
20 Correct 4 ms 640 KB Output is correct
21 Correct 2 ms 512 KB Output is correct
22 Correct 4 ms 640 KB Output is correct
23 Correct 3 ms 640 KB Output is correct
24 Correct 4 ms 640 KB Output is correct
25 Correct 47 ms 2072 KB Output is correct
26 Correct 162 ms 5332 KB Output is correct
27 Correct 579 ms 12608 KB Output is correct
28 Correct 289 ms 8952 KB Output is correct
29 Correct 414 ms 9896 KB Output is correct
30 Correct 474 ms 10204 KB Output is correct
31 Execution timed out 1008 ms 18932 KB Time limit exceeded
32 Halted 0 ms 0 KB -