Submission #943682

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
943682	2024-03-11T17:58:40 Z	HiepVu217	Palembang Bridges (APIO15_bridge)	C++17	100 / 100	93 ms	5580 KB

bridge

#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 17;
int k, n;
long long s[N], ans, ls, rs;
priority_queue <int> lpq, rpq;
vector <pair <int, int>> vt;
bool cmp (pair <int, int> x, pair <int, int> y)
{
    return x.first + x.second < y.first + y.second;
}
void add (int x)
{
    int mid;
    if (lpq.size())
    {
        mid = lpq.top();
    }
    else
    {
        mid = 1e9 + 17;
    }
    if (x <= mid)
    {
        lpq.push(x);
        ls += x;
    }
    else
    {
        rpq.push(-x);
        rs += x;
    }
    if (lpq.size() > rpq.size() + 1)
    {
        int t = lpq.top();
        lpq.pop();
        ls -= t;
        rpq.push(-t);
        rs += t;
    }
    if (rpq.size() > lpq.size())
    {
        int t = -rpq.top();
        rpq.pop();
        rs -= t;
        lpq.push(t);
        ls += t;
    }
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> k >> n;
    long long z = 0;
    vt.push_back ({0, 0});
    for (int i = 1; i <= n; ++i)
    {
        int a, b;
        char x, y;
        cin >> x >> a >> y >> b;
        if (x == y)
        {
            z += abs (a - b);
            continue;
        }
        vt.push_back ({a, b});
    }
    sort (vt.begin(), vt.end(), cmp);
    n = vt.size() - 1;
    z += n;
    for (int i = 1; i <= n; ++i)
    {
        add (vt[i].first);
        add (vt[i].second);
        s[i] = rs - ls;
    }
    ans = s[n];
    if (k == 2)
    {
		while (lpq.size())
        {
            lpq.pop();
        }
		while (rpq.size())
        {
            rpq.pop();
        }
		ls = rs = 0;
		for (int i = n; i > 0; i--)
        {
			add (vt[i].first);
			add (vt[i].second);
			ans = min (ans, rs - ls + s[i - 1]);
		}
	}
    cout << ans + z;
}

Subtask #1

8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	344 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct

Subtask #2

14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	344 KB	Output is correct
7	Correct	1 ms	344 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	23 ms	3024 KB	Output is correct
13	Correct	51 ms	3180 KB	Output is correct
14	Correct	34 ms	3536 KB	Output is correct
15	Correct	29 ms	2260 KB	Output is correct
16	Correct	23 ms	3284 KB	Output is correct
17	Correct	32 ms	3024 KB	Output is correct
18	Correct	30 ms	3544 KB	Output is correct
19	Correct	42 ms	3152 KB	Output is correct
20	Correct	27 ms	3532 KB	Output is correct
21	Correct	39 ms	3224 KB	Output is correct

Subtask #3

9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	604 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct

Subtask #4

32.0 / 32.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	396 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	468 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	464 KB	Output is correct
9	Correct	1 ms	464 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	516 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	348 KB	Output is correct
21	Correct	1 ms	352 KB	Output is correct
22	Correct	1 ms	352 KB	Output is correct
23	Correct	1 ms	352 KB	Output is correct
24	Correct	1 ms	496 KB	Output is correct

Subtask #5

37.0 / 37.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	352 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	548 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	1 ms	476 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	344 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	476 KB	Output is correct
20	Correct	1 ms	344 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	352 KB	Output is correct
23	Correct	1 ms	600 KB	Output is correct
24	Correct	1 ms	344 KB	Output is correct
25	Correct	35 ms	4048 KB	Output is correct
26	Correct	64 ms	4616 KB	Output is correct
27	Correct	69 ms	5072 KB	Output is correct
28	Correct	73 ms	5580 KB	Output is correct
29	Correct	93 ms	5484 KB	Output is correct
30	Correct	37 ms	2796 KB	Output is correct
31	Correct	36 ms	4504 KB	Output is correct
32	Correct	67 ms	5064 KB	Output is correct
33	Correct	56 ms	4816 KB	Output is correct
34	Correct	58 ms	5068 KB	Output is correct
35	Correct	37 ms	5072 KB	Output is correct
36	Correct	63 ms	5240 KB	Output is correct
37	Correct	22 ms	3796 KB	Output is correct