Submission #794823

#	Time	Username	Problem	Language	Result	Execution time	Memory
794823		MODDI	Palembang Bridges (APIO15_bridge)	C++17	0 / 100	1 ms	468 KiB

bridge

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<long long> vl;
int k, n;
ll ans = 0;
vl ord;
int main(){
	ios_base::sync_with_stdio(false);
	cin>>k>>n;
	for(int i = 0; i < n; i++){
		char side1, side2;
		ll p1, p2;
		cin>>side1>>p1>>side2>>p2;
		if(side1 == side2){
			ans += abs(p1 - p2);
		}
		else
		{
			ord.pb(p1);
			ord.pb(p2);
		}
	}
	sort(ord.begin(), ord.end());
	int sz = (int)ord.size();
	ll pref[sz];
	pref[0] = ord[0];
	for(int i = 1; i < sz; i++)
		pref[i] = pref[i-1] + ord[i];
	ll best = 1e18;
	for(int i = 0; i < sz; i++){
		ll here = ans;
		if(i+1 < sz)
		{
			here += pref[sz-1];
			here -= pref[i];
			here -= (sz - 1 - i) * ord[i];
		}
		if(i){
			here -= pref[i-1];
			here += i * ord[i];
		}
		here += (int)ord.size()/2;
		best = min(best, here);
	}
	cout<<best<<endl;
	return 0;
}

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