Submission #1322447

#	Time	Username	Problem	Language	Result	Execution time	Memory
1322447		aaaaaaaa	Palembang Bridges (APIO15_bridge)	C++20	0 / 100	0 ms	332 KiB

bridge

#include <bits/stdc++.h>
using namespace std;


#define int long long

const int inf = 2e18;

signed main(){
	ios::sync_with_stdio(0);
	cin.tie(nullptr); cout.tie(nullptr);

	
	int n, m, ans = 0;
	cin >> n >> m;

	char s1, s2;
	int x, y;

	vector<pair<int, int>> v;

	vector<int> alx;

	for(int i = 1; i <= m; ++i){
		cin >> s1 >> x >> s2 >> y;
		if(s1 == s2){
			ans += abs(x - y);
		}else{
			v.push_back({min(x, y), max(x, y)});
			alx.push_back(x);
			alx.push_back(y);
			++ans;
		}
	}

	sort(alx.begin(), alx.end());



	int mid = alx[alx.size() / 2];

	x = inf;

	for(auto it : alx){
		int cur = 0;
		for(auto p : v){
			cur += min(abs(p.first - it) + abs(p.second - it), abs(mid - p.first) + abs(mid - p.second));
		}
		x = min(cur, x);
	}


	cout << x + ans << "\n";

	return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37