Submission #158501

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
158501	2019-10-17T12:28:06 Z	maruii	Palembang Bridges (APIO15_bridge)	C++14	100 / 100	126 ms	8528 KB

bridge

#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
using ll = long long;
#define ff first
#define ss second

int K, N, cnt;
ll pfx[100005], sfx[100005], cost;
pii P[100005];
vector<int> x;

void f(ll *f) {
	priority_queue<pii, vector<pii>, greater<pii> > pq;
	for (int i = 1; i <= N; ++i) x.push_back(P[i].ff), x.push_back(P[i].ss);
	sort(x.begin(), x.end());
	x.erase(unique(x.begin(), x.end()), x.end());
	int s = 0;
	for (int i = 1, j = 0; i <= N; ++i) {
		f[i] = f[i - 1] + 2 * max({0, P[i].ff - x[j], x[j] - P[i].ss});
		pq.emplace(P[i].ff, 2);
		pq.emplace(P[i].ss, 2);
		s -= 2;
		while (pq.size() && pq.top().ff <= x[j]) {
			s += pq.top().ss;
			pq.pop();
		}
		while (s < 0) {
			f[i] += 1ll * s * (x[j + 1] - x[j]);
			j++;
			while (pq.size() && pq.top().ff <= x[j]) {
				s += pq.top().ss;
				pq.pop();
			}
		}
	}
}

int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	cin >> K >> N;
	for (int i = 0; i < N; ++i) {
		char a, b; int c, d; cin >> a >> c >> b >> d;
		cost += abs(c - d);
		if (a != b) {
			cost++;
			if (c > d) swap(c, d);
			P[++cnt] = {c, d};
		}
	}
	N = cnt;
	sort(P + 1, P + N + 1, [&](pii a, pii b) { return a.ff + a.ss < b.ff + b.ss; });
	f(pfx);
	if (K < 2) return !printf("%lld\n",pfx[N] + cost);
	reverse(P + 1, P + N + 1);
	for (int i = 1; i <= N; ++i) {
		int t = -P[i].ff;
		P[i].ff = -P[i].ss;
		P[i].ss = t;
	}
	f(sfx);
	ll mn = pfx[N];
	for (int i = 1; i < N; ++i) mn = min(mn, pfx[i] + sfx[N - i]);
	cout << mn + cost;
	return 0;
}

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	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	380 KB	Output is correct
5	Correct	3 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

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	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	3 ms	376 KB	Output is correct
5	Correct	3 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	42 ms	4080 KB	Output is correct
13	Correct	82 ms	3952 KB	Output is correct
14	Correct	64 ms	3816 KB	Output is correct
15	Correct	48 ms	2296 KB	Output is correct
16	Correct	48 ms	3948 KB	Output is correct
17	Correct	56 ms	3968 KB	Output is correct
18	Correct	61 ms	3952 KB	Output is correct
19	Correct	63 ms	3952 KB	Output is correct
20	Correct	47 ms	3952 KB	Output is correct
21	Correct	60 ms	3952 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	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	2 ms	376 KB	Output is correct

Subtask #4
32.0 / 32.0

#	Verdict	Execution time	Memory	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	504 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	372 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	3 ms	376 KB	Output is correct
15	Correct	3 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	3 ms	376 KB	Output is correct
21	Correct	3 ms	504 KB	Output is correct
22	Correct	3 ms	504 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	3 ms	504 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	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	380 KB	Output is correct
11	Correct	2 ms	248 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	3 ms	376 KB	Output is correct
15	Correct	3 ms	504 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	3 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	3 ms	504 KB	Output is correct
21	Correct	3 ms	376 KB	Output is correct
22	Correct	3 ms	376 KB	Output is correct
23	Correct	3 ms	376 KB	Output is correct
24	Correct	3 ms	376 KB	Output is correct
25	Correct	54 ms	6112 KB	Output is correct
26	Correct	84 ms	6212 KB	Output is correct
27	Correct	120 ms	7688 KB	Output is correct
28	Correct	126 ms	8492 KB	Output is correct
29	Correct	125 ms	8428 KB	Output is correct
30	Correct	65 ms	4548 KB	Output is correct
31	Correct	65 ms	6880 KB	Output is correct
32	Correct	77 ms	8528 KB	Output is correct
33	Correct	97 ms	7992 KB	Output is correct
34	Correct	85 ms	8404 KB	Output is correct
35	Correct	62 ms	6940 KB	Output is correct
36	Correct	82 ms	8180 KB	Output is correct
37	Correct	39 ms	4424 KB	Output is correct

Submission #158501

Compilation message

Subtask #1 8.0 / 8.0

Subtask #2 14.0 / 14.0

Subtask #3 9.0 / 9.0

Subtask #4 32.0 / 32.0

Subtask #5 37.0 / 37.0

Subtask #1
8.0 / 8.0

Subtask #2
14.0 / 14.0

Subtask #3
9.0 / 9.0

Subtask #4
32.0 / 32.0

Subtask #5
37.0 / 37.0