Submission #175952

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
175952	2020-01-07T12:38:34 Z	dolphingarlic	Palembang Bridges (APIO15_bridge)	C++14	100 / 100	111 ms	5740 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	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	3 ms	376 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	504 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	376 KB	Output is correct
8	Correct	3 ms	376 KB	Output is correct
9	Correct	3 ms	400 KB	Output is correct
10	Correct	3 ms	432 KB	Output is correct
11	Correct	6 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	380 KB	Output is correct
3	Correct	2 ms	380 KB	Output is correct
4	Correct	3 ms	376 KB	Output is correct
5	Correct	3 ms	376 KB	Output is correct
6	Correct	3 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	3 ms	380 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	380 KB	Output is correct
12	Correct	38 ms	3976 KB	Output is correct
13	Correct	70 ms	5612 KB	Output is correct
14	Correct	55 ms	4640 KB	Output is correct
15	Correct	42 ms	3572 KB	Output is correct
16	Correct	45 ms	4884 KB	Output is correct
17	Correct	58 ms	5488 KB	Output is correct
18	Correct	58 ms	5512 KB	Output is correct
19	Correct	64 ms	5484 KB	Output is correct
20	Correct	49 ms	5388 KB	Output is correct
21	Correct	61 ms	5228 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	504 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	380 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	380 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	380 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	3 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	380 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
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	3 ms	404 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	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

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	420 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	3 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	380 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	1 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	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	51 ms	3948 KB	Output is correct
26	Correct	82 ms	4588 KB	Output is correct
27	Correct	105 ms	5232 KB	Output is correct
28	Correct	110 ms	5740 KB	Output is correct
29	Correct	111 ms	5616 KB	Output is correct
30	Correct	58 ms	3060 KB	Output is correct
31	Correct	56 ms	4844 KB	Output is correct
32	Correct	86 ms	5484 KB	Output is correct
33	Correct	87 ms	5108 KB	Output is correct
34	Correct	93 ms	5488 KB	Output is correct
35	Correct	64 ms	5488 KB	Output is correct
36	Correct	89 ms	5300 KB	Output is correct
37	Correct	43 ms	4172 KB	Output is correct

Submission #175952

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