Submission #772831

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
772831	2023-07-04T11:43:20 Z	MahmoudMamdouh13	Palembang Bridges (APIO15_bridge)	C++14	100 / 100	94 ms	5652 KB

bridge

#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
typedef long long ll;
using namespace std;

bool cmp(pair<int, int> a, pair<int, int> b) {
	return a.first + a.second < b.first + b.second;
}

priority_queue<int> lpq;
priority_queue<int, vector<int>, greater<int>> rpq;
ll lsum, rsum;

void insert(int x) {
	int median = (lpq.size() ? lpq.top() : 1000000001);
	if (x <= median) {
		lpq.push(x);
		lsum += x;
	} else {
		rpq.push(x);
		rsum += x;
	}

	if (rpq.size() + 1 < lpq.size()) {
		int nxt = lpq.top();
		lpq.pop();
		rpq.push(nxt);
		lsum -= nxt;
		rsum += nxt;
	} else if (lpq.size() < rpq.size()) {
		int nxt = rpq.top();
		rpq.pop();
		lpq.push(nxt);
		rsum -= nxt;
		lsum += nxt;
	}
}

ll pref[100001];

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int k, n;
	ll same_side = 0;
	vector<pair<int, int>> v = {{0, 0}};
	cin >> k >> n;
	FOR(i, 0, n) {
		char a, b;
		int x, y;
		cin >> a >> x >> b >> y;
		if (a == b) same_side += abs(x - y);
		else v.push_back({x, y});
	}
	sort(v.begin(), v.end(), cmp);
	n = v.size() - 1;
	same_side += n;

	lsum = rsum = 0;
	FOR(i, 1, n + 1) {
		insert(v[i].first);
		insert(v[i].second);
		pref[i] = rsum - lsum;
	}

	ll ans = pref[n];

	if (k == 2) {
		while (lpq.size()) lpq.pop();
		while (rpq.size()) rpq.pop();
		lsum = rsum = 0;

		for (int i = n; i; i--) {
			insert(v[i].first);
			insert(v[i].second);
			ans = min(ans, rsum - lsum + pref[i - 1]);
		}
	}
	cout << same_side + ans;
	return 0;
}

Subtask #1
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	360 KB	Output is correct
12	Correct	21 ms	3824 KB	Output is correct
13	Correct	42 ms	5480 KB	Output is correct
14	Correct	33 ms	4560 KB	Output is correct
15	Correct	28 ms	3592 KB	Output is correct
16	Correct	32 ms	4880 KB	Output is correct
17	Correct	38 ms	5448 KB	Output is correct
18	Correct	31 ms	5496 KB	Output is correct
19	Correct	38 ms	5400 KB	Output is correct
20	Correct	28 ms	5332 KB	Output is correct
21	Correct	38 ms	5156 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct

Subtask #4
32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	328 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	1 ms	212 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	364 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	336 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	364 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	344 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct

Subtask #5
37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	332 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	0 ms	336 KB	Output is correct
10	Correct	1 ms	332 KB	Output is correct
11	Correct	1 ms	332 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	336 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	344 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	2 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	1 ms	344 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	30 ms	3848 KB	Output is correct
26	Correct	53 ms	4576 KB	Output is correct
27	Correct	94 ms	5056 KB	Output is correct
28	Correct	72 ms	5652 KB	Output is correct
29	Correct	73 ms	5348 KB	Output is correct
30	Correct	37 ms	3092 KB	Output is correct
31	Correct	31 ms	4724 KB	Output is correct
32	Correct	54 ms	5448 KB	Output is correct
33	Correct	64 ms	5064 KB	Output is correct
34	Correct	58 ms	5352 KB	Output is correct
35	Correct	48 ms	5316 KB	Output is correct
36	Correct	59 ms	5092 KB	Output is correct
37	Correct	27 ms	3820 KB	Output is correct

Submission #772831

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