답안 #884919

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
884919	2023-12-08T16:50:07 Z	Hakiers	Palembang Bridges (APIO15_bridge)	C++17	100 / 100	65 ms	8484 KB

bridge

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int MAXN = 1e5 + 7;
constexpr ll oo = 2e18;
ll total;
ll pref[MAXN];
vector<pair<ll, ll>> T;
priority_queue<ll> lefts, rights;
ll sumL, sumR;
int n, k, D;

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

void medianAdd(ll x){
	ll median = (lefts.size()? lefts.top(): oo);
	if(x <= median){
		lefts.push(x);
		sumL += x;
	} 
	else{
		rights.push(-x);
		sumR += x;
	}
	
	if(lefts.size() < rights.size()){
		ll nxt = -(rights.top());
		rights.pop();
		sumR -= nxt;
		lefts.push(nxt);
		sumL += nxt;
	}
	if(rights.size() + 1 < lefts.size()){
		ll nxt = lefts.top();
		lefts.pop();
		sumL -= nxt;
		rights.push(-nxt);
		sumR += nxt;
	}
}

void queueclear(){
	while(lefts.size()) lefts.pop();
	while(rights.size()) rights.pop();
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> k >> n;
	for(int i = 1; i <= n; i++){
		char x, y;
		ll a, b;
		cin >> x >> a >> y >> b;
		if(b < a) swap(a, b);
		
		if(x != y) T.push_back({a, b});
		else total += (b-a);
	}
	
	sort(T.begin(), T.end(), cmp);
	D = T.size();
	total += D;
	
	for(int i = 1; i <= D; i++){
		medianAdd(T[i-1].first);
		medianAdd(T[i-1].second);
		pref[i] = abs(sumL - sumR);
	}
	
	ll best = pref[D];
	
	if(k == 2){
		sumL = sumR = 0;
		queueclear();
		for(int i = D; i > 0; i--){
			medianAdd(T[i-1].first);
			medianAdd(T[i-1].second);
			best = min(best, pref[i-1] + abs(sumL-sumR));
		}
	}
	
	cout << total + best << "\n";
}

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	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	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	516 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	344 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

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	0 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
12	Correct	19 ms	6344 KB	Output is correct
13	Correct	41 ms	7800 KB	Output is correct
14	Correct	33 ms	6600 KB	Output is correct
15	Correct	23 ms	5088 KB	Output is correct
16	Correct	21 ms	7372 KB	Output is correct
17	Correct	34 ms	7876 KB	Output is correct
18	Correct	23 ms	7624 KB	Output is correct
19	Correct	41 ms	7824 KB	Output is correct
20	Correct	27 ms	7632 KB	Output is correct
21	Correct	41 ms	8052 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 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	0 ms	348 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	0 ms	348 KB	Output is correct

Subtask #4
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	344 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	344 KB	Output is correct
8	Correct	0 ms	348 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
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 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	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct

Subtask #5
37.0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 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	0 ms	348 KB	Output is correct
5	Correct	0 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	0 ms	348 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	500 KB	Output is correct
13	Correct	1 ms	476 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 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	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	27 ms	6464 KB	Output is correct
26	Correct	49 ms	6856 KB	Output is correct
27	Correct	63 ms	7888 KB	Output is correct
28	Correct	65 ms	8392 KB	Output is correct
29	Correct	65 ms	8484 KB	Output is correct
30	Correct	34 ms	4568 KB	Output is correct
31	Correct	25 ms	7220 KB	Output is correct
32	Correct	58 ms	8312 KB	Output is correct
33	Correct	37 ms	7636 KB	Output is correct
34	Correct	60 ms	7884 KB	Output is correct
35	Correct	37 ms	7884 KB	Output is correct
36	Correct	58 ms	7756 KB	Output is correct
37	Correct	24 ms	6348 KB	Output is correct

답안 #884919

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