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답안 #156539

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
156539 2019-10-06T11:53:52 Z Saboon Pinball (JOI14_pinball) C++14
100 / 100
 463 ms 28300 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int maxn = 3e5 + 10;
const ll inf = 1e18;

int a[maxn], b[maxn], c[maxn], d[maxn];
vector<int> comp;
ll dp[maxn], pd[maxn];
ll seg[2][4 * maxn];

ll get(int w, int id, int L, int R, int l, int r){
	if (r <= L or R <= l)
		return inf;
	if (l <= L and R <= r)
		return seg[w][id];
	int mid = (L + R) >> 1;
	return min(get(w, 2*id+0, L, mid, l, r), get(w, 2*id+1, mid, R, l, r));
}

void add(int w, int id, int L, int R, int idx, ll val){
	if (idx < L or R <= idx)
		return;
	if (L + 1 == R){
		seg[w][id] = val;
		return;
	}
	int mid = (L + R) >> 1;
	add(w, 2 * id + 0, L, mid, idx, val);
	add(w, 2 * id + 1, mid, R, idx, val);
	seg[w][id] = min(seg[w][2 * id + 0], seg[w][2 * id + 1]);
}

int cmp(int x){
	return lower_bound(comp.begin(), comp.end(), x) - comp.begin();
}

void add(int x){
	comp.push_back(x);
}

int main(){
	ios_base::sync_with_stdio (false);
	cin.tie(0), cout.tie(0);
	int m, n;
	cin >> m >> n;
	for (int i = 1; i <= m; i++){
		cin >> a[i] >> c[i] >> b[i] >> d[i];
		add(a[i]), add(b[i]), add(c[i]);
	}
	comp.push_back(1);
	comp.push_back(n);
	sort(comp.begin(), comp.end());
	comp.resize(unique(comp.begin(), comp.end()) - comp.begin());

	for (int i = 1; i <= m; i++)
		a[i] = cmp(a[i]), b[i] = cmp(b[i]), c[i] = cmp(c[i]);
	n = comp.size();
	for (int i = 0; i < n; i++){
		dp[i] = pd[i] = inf;
		add(0, 1, 0, n, i, inf);
		add(1, 1, 0, n, i, inf);
	}
	dp[0] = pd[n - 1] = 0;
	add(0, 1, 0, n, 0, 0);
	add(1, 1, 0, n, n - 1, 0);
	ll answer = inf;
	for (int i = 1; i <= m; i++){
		ll s = get(0, 1, 0, n, a[i], c[i] + 1);
		ll t = get(1, 1, 0, n, a[i], c[i] + 1);
		answer = min(answer, s + t + d[i]);
		if (s + d[i] < dp[b[i]]){
			dp[b[i]] = s + d[i];
			add(0, 1, 0, n, b[i], dp[b[i]]);
		}
		if (t + d[i] < pd[b[i]]){
			pd[b[i]] = t + d[i];
			add(1, 1, 0, n, b[i], pd[b[i]]);
		}
	}
	if (answer == inf)
		answer = -1;
	cout << answer << endl;
}

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 4 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 4 ms 632 KB Output is correct
20 Correct 4 ms 504 KB Output is correct
21 Correct 3 ms 504 KB Output is correct
22 Correct 5 ms 632 KB Output is correct
23 Correct 5 ms 632 KB Output is correct
24 Correct 5 ms 632 KB Output is correct

Subtask #4
49.0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 504 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 3 ms 504 KB Output is correct
17 Correct 4 ms 504 KB Output is correct
18 Correct 3 ms 504 KB Output is correct
19 Correct 4 ms 632 KB Output is correct
20 Correct 4 ms 504 KB Output is correct
21 Correct 3 ms 504 KB Output is correct
22 Correct 5 ms 632 KB Output is correct
23 Correct 5 ms 632 KB Output is correct
24 Correct 5 ms 632 KB Output is correct
25 Correct 30 ms 2548 KB Output is correct
26 Correct 87 ms 4996 KB Output is correct
27 Correct 229 ms 10600 KB Output is correct
28 Correct 148 ms 7532 KB Output is correct
29 Correct 171 ms 9352 KB Output is correct
30 Correct 196 ms 8508 KB Output is correct
31 Correct 386 ms 18028 KB Output is correct
32 Correct 327 ms 13116 KB Output is correct
33 Correct 60 ms 4728 KB Output is correct
34 Correct 187 ms 14416 KB Output is correct
35 Correct 344 ms 28240 KB Output is correct
36 Correct 463 ms 28176 KB Output is correct
37 Correct 396 ms 28300 KB Output is correct
38 Correct 382 ms 28240 KB Output is correct