답안 #637021

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
637021	2022-08-31T07:33:28 Z	SharpEdged	Palembang Bridges (APIO15_bridge)	C++17	100 / 100	381 ms	13592 KB

bridge

#include<bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define LSB(x) ((x) & -(x))
#define sz(x) ((int)x.size())

using namespace std;

typedef long long ll;

const char nl = '\n';

struct OrderedSet{
	multiset<ll> lo, hi;
	ll cost = 0;
	ll m;
	OrderedSet() {}
	void Insert(ll x){
		m = (sz(lo) > 0) ? *lo.rbegin() : x;
		cost += abs(x - m);
		if (x <= m) lo.insert(x);
		else hi.insert(x);
		Balance();
	}
	
	void Erase(ll x){
		m = *lo.rbegin();
		cost -= abs(x - m);
		if (x <= m) lo.erase(lo.find(x));
		else hi.erase(hi.find(x));
		Balance();
	}
	
	void Balance(){
		ll l = sz(lo)-1, r = sz(hi), new_m = m;
		if (sz(hi) > sz(lo)){
			ll val = *hi.begin();
			hi.erase(hi.begin());
			lo.insert(val);
			new_m = *lo.rbegin();
			cost += (new_m - m) * (l + 1 - r);
		}
		else if (sz(hi) < sz(lo) - 1){
			ll val = *lo.rbegin();
			lo.erase(lo.find(val));
			hi.insert(val);
			new_m = *lo.rbegin();
			cost += (m - new_m) * (r + 1 - l);
		}
		m = new_m;
	}
};

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int k, n; cin >> k >> n;
	ll base = 0;
	vector<pair<ll, ll>> v;
	for (int i = 0; i < n; i++){
		char z1, z2; ll p1, p2;
		cin >> z1 >> p1 >> z2 >> p2;
		if (z1 == z2) base += abs(p1 - p2);
		else {
			v.eb(p1, p2);
			base++;
		}
	}
	auto comp = [&](const pair<ll, ll> &a, const pair<ll, ll> &b) -> bool { return a.f+a.s < b.f+b.s; };
	sort(all(v), comp);
	OrderedSet sL, sR;
	for (int i = 0; i < sz(v); i++){
		sR.Insert(v[i].f);
		sR.Insert(v[i].s);
	}
	ll ans = sR.cost;
	if (k == 1) { cout << base + ans << nl; return 0; }
	for (int i = 0; i < sz(v); i++){
		sR.Erase(v[i].f);
		sR.Erase(v[i].s);
		sL.Insert(v[i].f);
		sL.Insert(v[i].s);
		ans = min(ans, sL.cost + sR.cost);
	}
	cout << base + ans << nl;
	return 0;
}

Subtask #1
8.0 / 8.0

#	결과	실행 시간	메모리	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	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

#	결과	실행 시간	메모리	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	2 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
12	Correct	78 ms	11148 KB	Output is correct
13	Correct	131 ms	11232 KB	Output is correct
14	Correct	133 ms	10044 KB	Output is correct
15	Correct	56 ms	6728 KB	Output is correct
16	Correct	86 ms	11176 KB	Output is correct
17	Correct	88 ms	11156 KB	Output is correct
18	Correct	70 ms	11196 KB	Output is correct
19	Correct	85 ms	11204 KB	Output is correct
20	Correct	83 ms	11204 KB	Output is correct
21	Correct	87 ms	11236 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	320 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	0 ms	324 KB	Output is correct

Subtask #4
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	328 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	2 ms	344 KB	Output is correct
14	Correct	2 ms	344 KB	Output is correct
15	Correct	2 ms	328 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	344 KB	Output is correct
18	Correct	1 ms	324 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	2 ms	464 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	2 ms	340 KB	Output is correct
23	Correct	2 ms	340 KB	Output is correct
24	Correct	3 ms	328 KB	Output is correct

Subtask #5
37.0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	1 ms	212 KB	Output is correct
4	Correct	1 ms	212 KB	Output is correct
5	Correct	1 ms	324 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	324 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	1 ms	324 KB	Output is correct
11	Correct	1 ms	212 KB	Output is correct
12	Correct	1 ms	316 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	2 ms	340 KB	Output is correct
15	Correct	2 ms	340 KB	Output is correct
16	Correct	1 ms	320 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	2 ms	348 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	2 ms	340 KB	Output is correct
23	Correct	2 ms	340 KB	Output is correct
24	Correct	2 ms	340 KB	Output is correct
25	Correct	178 ms	11948 KB	Output is correct
26	Correct	249 ms	12224 KB	Output is correct
27	Correct	315 ms	12908 KB	Output is correct
28	Correct	308 ms	13508 KB	Output is correct
29	Correct	381 ms	13592 KB	Output is correct
30	Correct	119 ms	7248 KB	Output is correct
31	Correct	154 ms	12896 KB	Output is correct
32	Correct	195 ms	13484 KB	Output is correct
33	Correct	121 ms	13176 KB	Output is correct
34	Correct	178 ms	13504 KB	Output is correct
35	Correct	177 ms	13148 KB	Output is correct
36	Correct	185 ms	13244 KB	Output is correct
37	Correct	185 ms	12020 KB	Output is correct

답안 #637021

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